Kronos Worldwide Inc KRO US Equity☆

KRONOS WORLDWIDE, INC._December 31, 2025

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 10-K

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☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2025

OR

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 1-31763

KRONOS WORLDWIDE, INC.

(Exact name of Registrant as specified in its charter)

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5430 LBJ Freeway, Suite 1700

Dallas, Texas75240-2620

(Address of principal executive offices)

Registrant’s telephone number, including area code: (972) 233-1700

Securities registered pursuant to Section 12(b) of the Act:

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Common stock ​ KRO ​ NYSE

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No securities are registered pursuant to Section 12(g) of the Act.

Indicate by check mark:

If the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐No☒

If the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐No☒

Whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days. Yes☒ No ☐

Whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes☒ No ☐

Whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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Large accelerated filer ☐ Accelerated filer ☒

Non-accelerated filer ☐ Smaller reporting company ☐

Emerging growth company ☐ ​ ​

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

​Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒

The aggregate market value of the 21.7 million shares of voting stock held by nonaffiliates of Kronos Worldwide, Inc. as of June 30, 2025 (the last business day of the Registrant’s most recently-completed second fiscal quarter) approximated $134.6 million.

Number of shares of the registrant’s common stock, $.01 par value per share, outstanding on February 27, 2026: 115,053,116.

Documents incorporated by reference

The information required by Part III is incorporated by reference from the Registrant’s definitive proxy statement to be filed with the Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this report.

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Forward-Looking Information

This Annual Report on Form 10-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. Statements in this Annual Report that are not historical facts are forward-looking in nature and represent management’s beliefs and assumptions based on currently available information. In some cases, you can identify forward-looking statements by the use of words such as “believes,” “intends,” “may,” “should,” “could,” “anticipates,” “expects” or comparable terminology, or by discussions of strategies or trends. Although we believe the expectations reflected in such forward-looking statements are reasonable, we do not know if these expectations will be correct. Such statements by their nature involve substantial risks and uncertainties that could significantly impact expected results. Actual future results could differ materially from those predicted. The factors that could cause our actual future results to differ materially from those described herein are the risks and uncertainties discussed in this Annual Report and those described from time to time in our other filings with the SEC and include, but are not limited to, the following:

● Future supply and demand for our products;

● The cyclicality of our business;

● Customer and producer inventory levels;

● Unexpected or earlier-than-expected industry capacity expansion;

● Changes in the availability of raw materials (such as ore);

● Competitive products and substitute products;

● Customer and competitor strategies;

● Potential consolidation of our competitors;

● Potential consolidation of our customers;

● The impact of pricing and production decisions;

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● Competitive technology positions;

● Changes in interest rates;

● Our ability to maintain sufficient liquidity;

● Pending or possible future litigation or other actions.

Should one or more of these risks materialize (or the consequences of such a development worsen), or should the underlying assumptions prove incorrect, actual results could differ materially from those forecasted or expected. We disclaim any intention or obligation to update or revise any forward-looking statements whether as a result of changes in information, future events or otherwise.

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PART I

ITEM 1.BUSINESS

General

Kronos Worldwide, Inc. (NYSE: KRO) (“Kronos”), incorporated in Delaware in 1989, is a leading global producer and marketer of value-added titanium dioxide pigments, or TiO2, a base industrial product used in a wide range of applications. We, along with our distributors and agents, sell and provide technical services for our products to approximately 3,000 customers in 100 countries with the majority of our sales in Europe, North America and the Asia Pacific region. We believe we have developed considerable expertise and efficiency in the manufacture, sale, shipment and service of our products in domestic and international markets. Effective July 16, 2024 (“Acquisition Date”), we acquired the 50% joint venture interest in Louisiana Pigment Company, L.P. (“LPC”) held by Venator Investments, Ltd. (“Venator”) for consideration of $185 million less a working capital adjustment. Prior to the acquisition, we held a 50% joint venture interest in LPC through a wholly-owned subsidiary. LPC was operated as a manufacturing joint venture between us and Venator. Following the acquisition, LPC became a wholly-owned subsidiary of ours. In 2025, we merged LPC into our wholly-owned subsidiary Kronos Louisiana, Inc. (the combined company is referred to as “Kronos Louisiana”). See Note 5 to our Consolidated Financial Statements.

TiO2 is a white inorganic pigment used in a wide range of products for its exceptional durability and its ability to impart whiteness, brightness and opacity. TiO2 is a critical component of everyday applications, such as coatings, plastics and paper, as well as many specialty products such as inks, cosmetics and pharmaceuticals. TiO2 is widely considered to be superior to alternative white pigments in large part due to its hiding power (or opacity), which is the ability to cover or mask other materials effectively and efficiently. TiO2 is designed, marketed and sold based on specific end-use applications.

TiO2 is the largest commercially used whitening pigment because it has a high refractive index, giving it more hiding power than any other commercially produced white pigment. In addition, TiO2 has excellent resistance to interaction with other chemicals, good thermal stability and resistance to ultraviolet degradation. Although there are other white pigments on the market, we believe there are no effective substitutes for TiO2 because no other white pigment has the physical properties for achieving comparable opacity and brightness or can be incorporated in as cost-effective a manner. Pigment extenders such as kaolin clays, calcium carbonate and polymeric opacifiers are used together with TiO2 in a number of end-use markets. However, these products are not able to duplicate the opacity performance characteristics of TiO2 and we believe these products are unlikely to have a significant impact on the use of TiO2.

TiO2is considered a “quality-of-life” product. Demand for TiO2 has generally been driven by worldwide gross domestic product and has generally increased with rising standards of living in various regions of the world. According to industry estimates, TiO2 consumption has grown at a compound annual growth rate of approximately 2-3% since 2000. Per capita consumption of TiO2 in Western Europe and North America far exceeds that in other areas of the world, and these regions are expected to continue to be the largest consumers of TiO2 on a per capita basis for the foreseeable future. We believe Western Europe and North America account for approximately 14% and 15% of global TiO2 consumption, respectively. Markets for TiO2 are generally increasing in China, the Asia Pacific region, South America and Eastern Europe and we believe these are significant markets which will continue to grow as economies in these regions develop and quality-of-life products, including TiO2, experience greater demand.

At December 31, 2025, approximately 50% of our common stock was owned by Valhi, Inc. (NYSE: VHI) and approximately 31% was owned by a wholly-owned subsidiary of NL Industries, Inc. (NYSE: NL). Valhi also owns approximately 83% of NL Industries’ outstanding common stock. A wholly-owned subsidiary of Contran Corporation held approximately 91% of Valhi’s outstanding common stock. As discussed in Note 1 to our Consolidated Financial Statements, Lisa K. Simmons and a trust established for the benefit of Ms. Simmons and her late sister and their children (the “Family Trust”) may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, NL and us.

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Products and end-use markets

Including our predecessors, we have produced and marketed TiO2 in North America and Europe, our primary markets, for over 100 years. We believe we are the largest TiO2 producer and chloride process TiO2 producer in Europe with 45% of our 2025 sales volumes attributable to markets in Europe. The table below shows our estimated market share for our significant markets, Europe and North America, for the last three years.

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North America ​ 16% ​ 17% ​ 19%

We believe we are the leading seller of TiO2 in several countries, including Germany. Overall, we are one of the top four producers of TiO2 in the world.

We offer our customers a broad portfolio of products that include over 30 different TiO2pigment grades under the KRONOS® trademark, which provide a variety of performance properties to meet customers’ specific requirements. Our major customers include domestic and international paint, plastics, decorative laminate and paper manufacturers. We ship TiO2 to our customers in either a dry or slurry form via rail, truck and/or ocean carrier. Sales of our core TiO2pigments represented approximately 90% of our net sales in 2025. We and our agents and distributors primarily sell our products in three major end-use markets: coatings, plastics and paper as well as into the market for white packaging inks.

The following tables show our approximate TiO2sales volume by geographic region and end-use for the year ended December 31, 2025:

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Sales volume percentages ​ Sales volume percentages

by geographic region ​ ​ ​ by end-use

Europe ​ ​ ​ 45% ​ Coatings ​ 59%

North America ​ 40% ​ Plastics ​ 30%

Asia Pacific 8% ​ Paper 8%

Rest of World 7% ​ Other 3%

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Some of the principal applications for our products include the following:

TiO2 for coatings – Our TiO2is used to provide opacity, durability, tinting strength and brightness in industrial coatings, as well as coatings for commercial and residential interiors and exteriors, automobiles, aircraft, machines, appliances, traffic paint and other special purpose coatings. The amount of TiO2used in coatings varies widely depending on the opacity, color and quality desired. In general, the higher the opacity requirement and the quality of the coating, the greater the TiO2content.

TiO2 for plastics – We produce TiO2 pigments that improve the optical and physical properties of plastics, including whiteness and opacity. TiO2 is used to provide opacity to items such as containers and packaging materials, and vinyl products such as windows, door profiles and siding. TiO2 also generally provides hiding power, neutral undertone, brightness and surface durability for housewares, appliances, toys, computer cases and food packages. TiO2’s high brightness along with its opacity, is used in some engineering plastics to help mask their undesirable natural color. TiO2is also used in masterbatch, which is a concentrate of TiO2and other additives and is one of the largest uses for TiO2 in the plastics end-use market. In masterbatch, the TiO2is dispersed at high concentrations into a plastic resin and is then used by manufacturers of plastic containers, bottles, packaging and agricultural films. Our TiO2 is also included in engineering materials like polycarbonate or acrylonitrile butadiene styrene (“ABS”) which is used in the automotive industry and for appliances, consumer electronics and other applications.

TiO2 for paper – Our TiO2 is used in the production of several types of paper, including laminate (decorative) paper, filled paper and coated paper to provide whiteness, brightness, opacity and color stability. Although we sell our TiO2 to all segments of the paper end-use market, our primary focus is on the TiO2 grades used in coated board and paper laminates, where several layers of paper are laminated together using melamine resin under high temperature and pressure.

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The top layer of paper contains TiO2 and plastic resin and is the layer that is printed with decorative patterns. Paper laminates are used to replace materials such as wood and tile for such applications as counter tops, furniture and wallboard. TiO2 is beneficial in these applications because it assists in preventing the material from fading or changing color after prolonged exposure to sunlight and other weathering agents.

TiO2 for other applications – We produce TiO2 to improve the opacity and hiding power of printing inks. TiO2 allows inks to achieve very high print quality while not interfering with the technical requirements of printing machinery, including low abrasion, high printing speed and high temperatures. Our TiO2 is also used in textile applications where TiO2 functions as an opacifying and delustering agent. In man-made fibers such as rayon and polyester, TiO2 corrects an otherwise undesirable glossy and translucent appearance. Without the presence of TiO2, these materials would be unsuitable for use in many textile applications.

We market high-purity sulfate process anatase TiO2 used to provide opacity, whiteness and brightness in a variety of cosmetic and personal care products, such as skin cream, lipstick, eye shadow and toothpaste. In pharmaceuticals, our TiO2 is used commonly as a colorant in tablet and capsule coatings as well as in liquid medicines to provide uniformity of color and appearance. KRONOS® purified anatase grades meet the applicable requirements of the CTFA (Cosmetics, Toiletries and Fragrances Association), USP (United States Pharmacopoeia), BP (British Pharmacopoeia) and the FDA (United States Food and Drug Administration).

Our TiO2 business is enhanced by the following three complementary businesses, which comprised approximately 10% of our net sales in 2025:

Manufacturing, operations and properties

Manufacturing – We produce TiO2 in a rutile crystalline form. Rutile TiO2 is manufactured using both a chloride production process and a sulfate production process. Manufacturers of many end-use applications can use either form, especially during periods of tight supply for TiO2. The chloride process is the preferred form for use in coatings and plastics, the two largest end-use markets. Due to environmental factors and customer considerations, the proportion of TiO2 industry sales represented by chloride process pigments has remained stable relative to sulfate process pigments, and in 2025, chloride process production facilities represented approximately 39% of industry capacity. The sulfate process is preferred for use in selected paper products, ceramics, rubber tires, man-made fibers, pharmaceuticals and cosmetics. Once an intermediate TiO2 pigment has been produced by either the chloride or sulfate process, it is “finished” into products with specific performance characteristics for particular end-use applications through proprietary processes involving various chemical surface treatments and intensive micronizing (milling).

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Joint Venture – Prior to July 16, 2024, one of our subsidiaries and Venator each owned a 50% interest in LPC, which was operated as a manufacturing joint venture. LPC owned and operated a chloride-process TiO2 plant located near Lake Charles, Louisiana. On July 16, 2024, we acquired the 50% interest in LPC held by Venator for consideration of $185 million less a working capital adjustment. In 2025, we merged LPC into our wholly-owned subsidiary Kronos Louisiana, Inc.

Prior to the acquisition, we accounted for our interest in the joint venture by the equity method. The joint venture operated on a break-even basis, and therefore we did not have any equity in earnings of the joint venture. We were required to purchase one-half of the TiO2 produced by the joint venture. All costs and capital expenditures were shared equally with Venator, with the exception of feedstock (purchased natural rutile ore or chlorine slag) and packaging costs for the pigment grades produced. Our share of net costs was reported as cost of sales as the TiO2 was sold. See Note 5 to our Consolidated Financial Statements.

As a result of the acquisition, for financial reporting purposes the assets acquired and liabilities assumed of LPC are included in our Consolidated Balance Sheets as of December 31, 2024 and December 31, 2025, and the results of operations and cash flows of LPC are included in our Consolidated Statements of Operations and Cash Flows beginning as of the Acquisition Date. See Note 5 to our Consolidated Financial Statements.

Operations – We produced 401,000, 535,000 and 480,000 metric tons of TiO2 in 2023, 2024 and 2025, respectively. Our production volumes for 2023 and 2024 through the Acquisition Date include our share of the output produced by our TiO2 manufacturing joint venture. Subsequent to the Acquisition Date, our 2024 and 2025 production volumes include 100% of the production volumes from the Kronos Louisiana facility.

Our average production capacity utilization rates were approximately 72% in 2023, 96% in 2024 and 77% in 2025. Our production levels during 2023 and the second half of 2025 were reduced to align with lower customer demand resulting from challenging economic conditions and geopolitical uncertainties. In 2024, we increased production to meet higher overall customer demand.

Properties– We operate facilities throughout North America and Europe. We have four TiO2 plants in Europe (one in each of Leverkusen, Germany; Nordenham, Germany; Langerbrugge, Belgium; and Fredrikstad, Norway). In North America, we have a TiO2 plant in Varennes, Quebec, Canada and a TiO2 plant near Lake Charles, Louisiana.

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The following table presents the division of our expected 2026 manufacturing capacity by plant location and type of manufacturing process:

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Facility ​ ​ ​ Description ​ ​ ​ Chloride ​ Sulfate

Nordenham, Germany ​ TiO2 production, sulfate process, co-products ​ - ​ 11

Fredrikstad, Norway (2) TiO2 production, sulfate process, co-products - 6 ​

Lake Charles, LA, US TiO2 production, chloride process, slurry facility 24 - ​

(2) The Fredrikstad facility is located on public land and is leased until 2063.

We own the land underlying all of our principal production facilities unless otherwise indicated in the table above.

We also operate an ilmenite mine in Norway pursuant to a governmental concession with an unlimited term. In addition, we have corporate and administrative offices located in the U.S., Germany, Norway, Canada, Belgium and France.

Raw materials

The primary raw materials used in chloride process TiO2 are titanium-containing feedstock (purchased natural rutile ore, chlorine slag, or other high-grade feedstocks), chlorine and petroleum coke. Chlorine is available from a number of suppliers, while petroleum coke is available from a limited number of suppliers. Titanium-containing feedstock suitable for use in the chloride process is available from a limited but increasing number of suppliers principally in Australia, South Africa, Africa, the Middle East, Norway, Canada and India. We purchase feedstock for our chloride process TiO2 from the following primary suppliers for volumes for delivery extending, in some cases, through 2028:

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Supplier ​ Product ​ Renewal Terms

Rio Tinto Iron and Titanium Ltd. ​ Upgraded slag ​ Auto-renews every two years

Iluka Resources Limited ​ Rutile ore ​ Renewal terms upon negotiation

In the past we have been, and we expect that we will continue to be, successful in obtaining short-term and long-term extensions to these and other existing supply contracts. We expect the raw materials purchased under these contracts, and contracts we may enter into, will meet our chloride process feedstock requirements over the next several years. Multi-year contracts generally may be terminated with a 12-month written notice or based on certain defaults by either party or failure to agree on pricing as noted in the agreements.

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The primary raw materials used in sulfate process TiO2 are titanium-containing feedstock, primarily ilmenite or purchased sulfate grade slag and sulfuric acid. Sulfuric acid is available from a number of suppliers. Titanium-containing feedstock suitable for use in the sulfate process is available from a limited number of suppliers principally in Norway, Canada, Australia, Africa, India and South Africa. As one of the few vertically integrated producers of sulfate process TiO2, we operate a rock ilmenite mine in Norway, which provided all of the feedstock for our sulfate process TiO2 plants in 2025. We expect ilmenite production from our mine to meet our sulfate process feedstock requirements for the foreseeable future. We expect the raw materials purchased under these contracts, and other contracts that we may enter into, to meet our sulfate process feedstock requirements over the next several years.

Many of our raw material contracts contain fixed quantities we are required to purchase or specify a range of quantities within which we are required to purchase. The pricing under these agreements is generally negotiated quarterly or semi-annually.

The following table summarizes our raw materials purchased or mined in 2025.

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Production process/raw material ​ ​ ​ procured or mined

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Chloride process plants - ​ ​

Purchased slag or rutile ore 458

Sulfate process plants: ​

Ilmenite ore mined and used internally 229

Sales and marketing

Our marketing strategy is aimed at developing and maintaining strong relationships with new and existing customers. Because TiO2 represents a significant input cost for our customers, the purchasing decisions are often made by our customers’ senior management. We work to maintain close relationships with the key decision makers through in-depth and frequent contact. We endeavor to extend these commercial and technical relationships to multiple levels within our customers’ organizations using our direct sales force and technical service group to accomplish this objective. We believe this helps build customer loyalty and strengthens our competitive position. Close cooperation and strong customer relationships enable us to stay closely attuned to trends in our customers’ businesses. Where appropriate, we work in conjunction with our customers to solve formulation or application problems by modifying specific product properties or developing new pigment grades. We also focus our sales and marketing efforts on those geographic and end-use market segments where we believe we can realize higher selling prices. This focus includes continuously reviewing and optimizing our customer and product portfolios.

We also work directly with our customers to monitor the performance of our products in their end-use applications, evaluate the need for improvements in our product and process technology and identify opportunities to develop new product solutions for our customers. Our marketing staff closely coordinates with our sales force and technical specialists to ensure the needs of our customers are met, and to help develop and commercialize new grades where appropriate.

We sell a majority of our products through our direct sales force operating in Europe, North America and other markets. We also utilize sales agents and distributors who are authorized to sell our products in specific geographic areas. In Europe, our sales efforts are conducted primarily through our direct sales force and our sales agents. Our agents do not sell any TiO2 products other than KRONOS® branded products. In North America, our sales are made primarily through our direct sales force and supported by a network of distributors. We have increased our marketing efforts over the last several years in export markets and our sales are now made through our direct sales force, sales agents and distributors. In addition to our direct sales force and sales agents, many of our sales agents also act as distributors to service our customers in all regions. We offer customer and technical service to customers who purchase our products through distributors as well as to our larger customers serviced by our direct sales force.

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We sell to a diverse customer base with no single customer representing 10% or more of our net sales in 2025. Our largest ten customers accounted for approximately 35% of net sales in 2025.

Neither our business as a whole nor any of our principal product groups is seasonal to any significant extent. However, TiO2 sales are generally higher in the second and third quarters of the year, due in part to the increase in coatings production in the spring in the northern hemisphere to meet demand during the spring and summer painting seasons. We generally build inventories to meet expected customer demand.

Competition

The TiO2 industry is highly competitive. We compete primarily on the basis of price, product quality, technical service, long-term stability and the availability of high-performance pigment grades. Since TiO2 is not traded through a commodity market, its pricing is largely a product of negotiation between suppliers and their respective customers. Price and availability are the most significant competitive factors along with quality and customer service for the majority of our product grades. Increasingly, we are focused on providing pigments that are differentiated to meet specific customer requirements and specialty grades that are differentiated from our competitors’ products. During 2025, we had an estimated 7% share of worldwide TiO2 sales volume, and based on sales volume, we believe we are the leading seller of TiO2 in several countries, including Germany.

Our principal competitors are The Chemours Company, Tronox Holdings PLC and LB Group Co. Ltd. The top four TiO2 producers (i.e., we and our three principal competitors) account for approximately 42% of the world’s production capacity.

The following chart shows our estimate of worldwide production capacity in 2025:

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Worldwide production capacity - 2025

LB Group ​ ​ ​ 14%

Chemours ​ 11%

Kronos 6%

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Chemours has approximately one-half of total North American TiO2 production capacity and is our principal North American competitor. LB Group previously announced it plans to add an additional 200,000 tons of chloride process capacity, which we expect may be added incrementally over the next several years. However, due to the current extended downturn in the industry as a whole, several of our competitors have recently closed facilities or announced plans to reduce capacity, including Chemours, which closed its Taiwan facility with an estimated 160,000 tons of chloride process capacity in 2023, and Tronox, which closed its 90,000 ton chloride capacity facility in the Netherlands in 2025 and announced its plans to permanently close its 46,000 ton sulfate facility in China in January 2026. In 2025 Venator’s U.K. parent company entered bankruptcy and its facilities were idled and marketed for sale, with a total production capacity of approximately 400,000 tons at least temporarily off the market. In addition, in 2024 we closed our sulfate production line in Varennes, Canada.

The TiO2 industry is characterized by high barriers to entry consisting of high capital costs, proprietary technology and significant lead times required to construct new facilities or to expand existing capacity. Therefore, over the past ten years, we and our competitors increased industry capacity through debottlenecking projects; however, this increase only partly compensated for the shut-down of various TiO2 plants throughout the world. Other than through debottlenecking projects and the LB Group expansion mentioned above, we do not expect any significant efforts will be undertaken by us or our principal competitors to further increase capacity and we believe it is unlikely any new TiO2plants will be constructed in Europe or North America for the foreseeable future. If actual developments differ from our expectations, the TiO2 industry and our performance could be unfavorably affected.

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Research and development

We employ scientists, chemists, process engineers and technicians who are engaged in research and development, process technology and quality assurance activities in Leverkusen, Germany. These individuals have the responsibility for improving our chloride and sulfate production processes, reducing production costs, improving product quality and strengthening our competitive position by developing new products and applications. Our expenditures for these activities were approximately $18 million in 2023, $14 million in 2024 and $16 million in 2025. We expect to spend approximately $13 million on research and development in 2026.

We continually seek to improve the quality of our grades and have been successful in developing new grades for existing and new applications to meet the needs of our customers and increase product life cycles. Since the beginning of 2020, we have added eight new grades for pigments and other applications.

Patents, trademarks, trade secrets and other intellectual property rights

We have a comprehensive intellectual property protection strategy that includes obtaining, maintaining and enforcing our patents, primarily in the United States, Canada and Europe. We also register, maintain and protect our trademark rights. We maintain the secrecy of our trade secret rights and protect them by means of security protocols and confidentiality agreements. In some instances, we have entered into license agreements with third parties concerning various intellectual property matters. We have also from time to time been involved in disputes over intellectual property.

Patents – We have obtained patents and have numerous patent applications pending that cover certain aspects of our products and the technology used in the manufacture of our products. Our patent strategy is important to us and our continuing business activities. In addition to maintaining our patent portfolio, we seek patent protection for our technical developments, principally in the United States, Canada and Europe. U.S. patents are generally in effect from the time that they issue as patents and then extend for 20 years from the date of filing. Our U.S. patent portfolio includes patents having remaining terms ranging from one year to 18 years.

Trademarks – Our trademarks, including KRONOS®, are covered by issued and/or pending registrations, including in Canada and the United States. We protect the trademarks we use in connection with the products we manufacture and sell and have developed goodwill in connection with our long-term use of our trademarks.

Trade secrets – We conduct research activities in secret and we protect the confidentiality of our trade secrets through reasonable measures, including confidentiality agreements and security procedures, including data security. We rely upon unpatented proprietary knowledge and continuing technological innovation and other trade secrets to develop and maintain our competitive position. Our proprietary chloride production process is an important part of our technology and our business could be harmed if we fail to maintain confidentiality of our trade secrets used in this technology.

Regulatory and environmental matters

Our operations and properties are governed by various environmental laws and regulations which are complex, change frequently and have tended to become stricter over time. These environmental laws govern, among other things, the generation, storage, handling, use, disposition and transportation of hazardous materials; the emission and discharge of hazardous materials into the ground, air, or water; and the health and safety of our employees. Certain of our operations are, or have been, engaged in the generation, storage, handling, manufacture or use of substances or compounds that may be considered toxic or hazardous within the meaning of applicable environmental laws and regulations. As with other companies engaged in similar businesses, certain of our past and current operations and products have the potential to cause environmental or other damage. We have implemented and continue to implement various policies and programs in an effort to minimize these risks. Our policy is to comply with applicable environmental laws and regulations at all our facilities and to strive to improve our environmental performance and overall sustainability. It is possible that future developments, such as stricter requirements in environmental laws and enforcement policies, could adversely affect our operations, including production, handling, use, storage, transportation, sale or disposition of hazardous or toxic substances or require us to make capital and other expenditures to comply, and could adversely affect our consolidated financial position and results of operations or liquidity.

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We have a history of identifying new ways to reduce consumption and waste by converting byproducts to co-products through our KRONOS ecochem® products. We have a published Safety, Environment, Energy and Quality Policy which is translated into local languages and distributed to all our employees and shared publicly via our website. We have implemented rigorous procedures for incident reporting and investigation, including root cause analysis of environmental and safety incidents and near misses. Because TiO2 production requires significant energy input, we are focused on energy efficiency at all production locations. Five of our six TiO2 production facilities maintain certifications to the ISO 50001:2018 Energy Management standard and all locations have local energy teams in place. These teams are responsible for maintaining ISO 50001:2018 certifications (where applicable), performing regular reviews of local energy consumption, making recommendations regarding capital projects that reduce energy consumption and associated Greenhouse Gas (“GHG”) emissions or enhance efficiency. When possible, we look for opportunities to partner with local government authorities through grant opportunities to reduce energy consumption and associated GHG emissions. We also actively manage potential water-related risks, including flooding and water shortages. Our manufacturing facilities are strategically located adjacent to sources of water, which we use for process operations and for shipping and receiving raw materials and finished products. Water-critical processes are identified and ongoing efforts to minimize water use are incorporated into environmental planning.

Our U.S. manufacturing operations are governed by federal, state and local environmental and worker health and safety laws and regulations. These include the Resource Conservation and Recovery Act, or RCRA, the Occupational Safety and Health Act, the Clean Air Act, the Clean Water Act, the Safe Drinking Water Act, the Toxic Substances Control Act and the Comprehensive Environmental Response, Compensation and Liability Act, as amended by the Superfund Amendments and Reauthorization Act, or CERCLA, as well as the state counterparts of these statutes. Some of these laws hold current or previous owners or operators of real property liable for the costs of cleaning up contamination, even if these owners or operators did not know of, and were not responsible for, such contamination. These laws also assess liability on any person who arranges for the disposal or treatment of hazardous substances, regardless of whether the affected site is owned or operated by such person. Although we have not incurred and do not currently anticipate any material liabilities in connection with such environmental laws, we may be required to make expenditures for environmental remediation in the future.

While the laws regulating operations of industrial facilities in Europe vary from country to country, a common regulatory framework is provided by the European Union, or the EU. Germany and Belgium are members of the EU and follow its initiatives. Norway is not a member but generally adopts laws and patterns its environmental regulatory actions after those of the EU.

From time to time, our facilities may be subject to environmental regulatory enforcement under local or national laws. Typically, we update our compliance programs to resolve these matters. Occasionally, we may pay penalties. To date, such penalties have not involved amounts having a material adverse effect on our consolidated financial position, results of operations or liquidity. We believe all of our facilities are in substantial compliance with applicable environmental laws.

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From time to time, new environmental, sustainability, health and safety regulations are passed or proposed in the countries in which we operate or sell our products, seeking to regulate our operations or to restrict, limit or classify TiO2. We believe we are in substantial compliance with laws applicable to the regulation of TiO2. However, increased regulatory scrutiny could affect consumer perception of TiO2 or limit the marketability and demand for TiO2 or products containing TiO2 and increase Kronos’ regulatory and compliance costs.

On October 1, 2021, EU Regulation No. 1272/2008 classifying dry TiO2 and mixtures containing dry TiO2 as a suspected carcinogen via inhalation went into force. Our dry TiO2 products do not meet the criteria set forth in the regulation and therefore do not require classification labels. On November 23, 2022 the General Court of the European Union annulled the classification of TiO2 as a suspected carcinogen in its entirety, and in August 2025, the Court of Justice of the European Union upheld this decision on appeal.

Our capital expenditures related to ongoing environmental compliance, protection and improvement programs, including capital expenditures which are primarily focused on increasing operating efficiency but also result in improved

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environmental protection such as lower emissions from our manufacturing facilities, were $26 million in 2025 and are currently expected to be approximately $30 million in 2026.

Environmental, Social and Governance (“ESG”)

We seek to operate our businesses in line with sound ESG principles that include corporate governance, social responsibility, sustainability and cybersecurity. We believe ESG means conducting operations with high standards of environmental and social responsibility, practicing exemplary ethical standards, focusing on safety as a top priority, respecting human rights and supporting our local communities, and continuously developing our employees. At our facilities, we undertake various environmental sustainability programs, and we promote social responsibility and volunteerism through programs designed to support and give back to the local communities in which we operate. Each of our locations maintains site-specific safety programs and disaster response and business continuity plans. All manufacturing facilities have detailed, site-specific emergency response procedures we believe adequately address regulatory compliance, vulnerability to potential hazards, emergency response and action plans, employee training, alarms and warning systems and crisis communication.

Governmental agencies of countries in which we operate have adopted or are contemplating regulatory changes relating to certain ESG topics, such as the Corporate Social Responsibility Directive adopted by the European Union on November 28, 2022 (“EU CSRD”). We are evaluating and will continue to evaluate the applicability of the EU CSRD as amendments are adopted and regulatory guidance is issued and as the European countries in which we operate adopt implementing legislation, and we will establish a compliance program to address any applicable requirements.

In an effort to align our non-employee directors’ financial interests with those of our stockholders, our board of directors established share ownership guidelines for our non-management directors. In addition, we have an insider trading policy that applies to both employees and non-employee directors.

We have taken steps to integrate ESG considerations into operating decisions along with other critical business factors. We periodically publish an ESG Report, which is available on our public website. The primary purpose of our ESG Report is to describe our policies and programs in the area of ESG, including certain internal metrics and benchmarks related to various aspects of ESG. We voluntarily developed these internal metrics and benchmarks, which we use to identify progress and opportunities for improvement. These metrics are not intended to be directly comparable to similar metrics utilized by other companies to track ESG performance, as the standards, methodologies and assumptions used to determine these metrics vary by subsidiary and jurisdiction.

Human capital resources

Employees – Our operating results depend in part on our ability to successfully manage our human capital resources, including attracting, identifying and retaining key talent. We have a well-trained labor force with a substantial number of long-tenured employees. We provide competitive compensation and benefits to our employees, some of which are offered under collective bargaining agreements. In addition to salaries, these programs, which vary by country/region, can include annual bonuses, a defined benefit pension plan, a defined contribution plan with employer matching opportunities, healthcare and insurance benefits, health savings and flexible spending accounts, paid time off, family leave, family care resources, employee assistance programs and tuition assistance.

We recognize that everyone deserves respect and equal treatment. As a global company, we embrace diversity and collaboration in our workforce and our business initiatives. We are an equal opportunity employer and we base employment decisions on merit, competence and qualifications, without regard to race, color, national origin, gender, age, religion, disability, sex, sexual orientation or other characteristics protected by applicable law in the jurisdictions in which we operate. We promote a respectful, diverse and inclusive workplace in which all individuals are treated with respect and dignity.

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As of December 31, 2025, we employed the following number of people (an approximate 10.5% decrease from 2024):

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United States ​ 311

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Certain employees at each of our production facilities are organized by labor unions. We strive to maintain good relationships with all our employees, including the unions and workers’ councils representing those employees. In Europe, our union employees are covered by master collective bargaining agreements for the chemical industry that are generally renewed annually. At December 31, 2025, approximately 76% of our worldwide workforce is organized under collective bargaining agreements. We did not experience any work stoppages during 2025, although it is possible that there could be future work stoppages or other labor disruptions that could materially and adversely affect our business, results of operations, financial position, or liquidity.

Health and safety – Protecting the health and safety of our workforce, our customers, our business partners and the natural environment is one of our core values. We are committed to maintaining a strong safety culture where all workers meet or exceed required industry performance standards and continuously seek to improve occupational and process safety performance. We are conducting our businesses in ways that provide all personnel with a safe and healthy work environment and have established safety and environmental programs and goals to achieve such results. We expect our manufacturing facilities to produce our products safely and in compliance with applicable local regulations and company policies, standards and practices intended to protect the environment and people and have established global policies designed to promote such compliance. We require our employees to comply with such requirements. We provide our workers with the tools and training necessary to make the appropriate decisions to prevent accidents and injuries. Each of our operating facilities develops, maintains and implements safety programs encompassing key aspects of their operations. In addition, management reviews and evaluates safety performance throughout the year. We monitor conditions that could lead to a safety incident and keep track of injuries through reporting systems in accordance with laws in the jurisdictions in which we operate. With this data we calculate incident frequency rates to assess the quality of our safety performance. At the global level we also track overall safety performance. Each of our operating locations is subject to local laws and regulations that dictate what injuries are required to be recorded and reported, which may differ from location to location and result in different methods of injury rate calculation. For internal global tracking, benchmarking and identification of opportunities for improvement, we collect the location specific information and apply a U.S.-based injury rate calculation method to arrive at a global total frequency rate, which is expressed as the number of incidents at our operating locations per 200,000 hours. This internal safety metric may not be directly comparable to a recordable incident rate calculated under U.S. law. Our global total frequency rate aggregating information about employees and contractors was 0.95 in 2023 (0.74 of the aggregate represents employees only), 0.70 in 2024 (0.80 of the aggregate represents employees only) and 0.57 in 2025 (0.64 of the aggregate represents employees only).

Website and other available information

Our fiscal year ends December 31. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and any amendments to those reports are available on our website at kronosww.com. These reports are available on the website, without charge, as soon as is reasonably practicable after we file or furnish them electronically with the Securities and Exchange Commission, or SEC. Additional information regarding us, including our Audit Committee Charter, Code of Business Conduct and Ethics and our Corporate Governance Guidelines, can also be found at this website. Information contained on our website is not part of this report. We will also provide free copies of such documents upon written request. Such requests should be directed to the Corporate Secretary at our address on the cover page of this Form 10-K.

We are an electronic filer and the SEC maintains an internet website that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC at www.sec.gov.

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ITEM 1A.RISK FACTORS

Below are certain risk factors associated with our business. See also certain risk factors discussed in Item 7- “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Critical Accounting Policies and Estimates.” In addition to the potential effect of these risk factors, any risk factor which could result in reduced earnings or operating losses, or reduced liquidity, could in turn adversely affect our ability to service our liabilities or pay dividends on our common stock or adversely affect the quoted market prices for our securities.

Operational Risk Factors

Demand for, and prices of, certain of our products are influenced by changing market conditions for our products, which may result in reduced earnings or in operating losses.

Our sales and profitability are largely dependent on the TiO2 industry. In 2025, approximately 90% of our sales were attributable to sales of TiO2. TiO2 is used in many “quality of life” products for which demand historically has been linked to global, regional and local gross domestic product and discretionary spending, which can be negatively impacted by regional and world events or economic conditions. Such events are likely to cause a decrease in demand for our products and, as a result, may have an adverse effect on our results of operations and financial condition.

Pricing within the global TiO2 industry over the long term is cyclical and changes in economic conditions worldwide can significantly impact our earnings and operating cash flows. Historically, the markets for many of our products have experienced alternating periods of increasing and decreasing demand. Relative changes in the selling prices for our products are one of the main factors that affect the level of our profitability. In periods of increasing demand, our selling prices and profit margins generally will tend to increase, while in periods of decreasing demand our selling prices and profit margins generally tend to decrease. In addition, pricing may affect customer inventory levels as customers may from time to time accelerate purchases of TiO2 in advance of anticipated price increases or defer purchases of TiO2 in advance of anticipated price decreases. Our ability to further increase capacity without additional investment in greenfield or brownfield capacity may be limited and as a result, our profitability may become even more dependent upon the selling prices of our products.

The TiO2 industry is concentrated and highly competitive and we face price pressures in the markets in which we operate, which may result in reduced earnings or operating losses.

The global market in which we operate our business is concentrated, with the top four TiO2 producers accounting for approximately 42% of the world’s production capacity, and is highly competitive. Competition is based on a number of factors, such as price, product quality and service. We face significant competition from international and regional competitors, including increasing competition from TiO2 producers in China, who have significant sulfate production process capacity. Chinese producers have also continued to develop chloride process technology, and the risk of substitution of our products with products made by Chinese producers could increase if Chinese producers increase the use of chloride process technology and improve the quality of their sulfate and chloride products. Some of our competitors may be able to drive down prices for our products if their costs are lower than our costs, including our competitors with vertically integrated sources of raw materials for the chloride process who may have a competitive advantage during periods of high or rising raw material costs or who operate in regions with less stringent regulatory requirements. For example, Chinese competition generally has lower operating costs due to less stringent regulatory and environmental compliance requirements and less expensive energy prices. China has dumped lower cost sulfate process TiO2 into markets we serve. In some cases, Western TiO2 producers have been successful in obtaining anti-dumping duties on Chinese imports such as the duties recently enacted in the European Union, Brazil, Saudi Arabia, and other jurisdictions. In addition, some of our competitors’ financial, technological and other resources may be greater than our resources and such competitors may be better able to withstand extended periods of reduced demand or other changes in market conditions. Our competitors may be able to respond more quickly than we can to new or emerging technologies and changes in customer requirements. Further, consolidation of our competitors or customers may result in reduced demand for our products or make it more difficult for us to compete with our competitors. The occurrence of any of these events could result in reduced earnings or operating losses.

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Higher costs or limited availability of our raw materials may reduce our earnings and decrease our liquidity. In addition, many of our raw material contracts contain fixed quantities we are required to purchase.

The number of sources for and availability of certain raw materials is specific to the particular geographical region in which our facilities are located. Titanium-containing feedstocks suitable for use in our TiO2 facilities are available from a limited number of suppliers around the world. Political and economic instability or increased regulations in the countries from which we purchase or mine our raw material supplies could adversely affect raw material availability. If we or our worldwide vendors are unable to meet our planned or contractual obligations and we are unable to obtain necessary raw materials, we could incur higher costs for raw materials or we may be required to reduce production levels. For example, we experienced increases in feedstock costs in 2023 and 2024, which negatively affected our margins. We have also experienced higher operating costs such as energy costs. Future variations in the cost of energy, which primarily reflect market prices for oil and natural gas, and for raw materials may significantly affect our operating results and decrease liquidity as we may not always be able to increase our selling prices to offset the impact of any higher costs or reduced production levels.

We have supply contracts that provide for our TiO2 feedstock requirements. While we believe we will be able to renew these contracts, as necessary, we do not know if we will be successful in renewing them or in obtaining long-term extensions to them prior to expiration. Our current agreements have minimum purchase requirements, targeted purchases or require us to purchase certain minimum percentage-based quantities of feedstock based upon our annual purchasing requirements. We estimate aggregate purchases under these feedstock agreements will be between approximately $375 and $450 million in 2026. In addition, we have other long-term supply and service contracts that provide for various raw materials and services, which may require us to purchase certain minimum quantities. Our obligations under these contracts could adversely affect our financial results if we significantly reduce our production and we are unable to modify the contractual commitments.

Our acquisition of the remaining 50% interest in LPC may not generate benefits we anticipate and may otherwise affect our business and prospects.

In July 2024 we completed the LPC acquisition in which we purchased the 50% ownership interest in LPC we did not previously own and we subsequently merged LPC into our wholly-owned subsidiary, Kronos Louisiana. If we experience unforeseen technological, operational or other difficulties in integrating the Kronos Louisiana facility into our operations as our wholly-owned subsidiary, we may not be able to implement the process innovations at the facility that we expect. In addition, we may not be able to achieve the anticipated synergies or improvements in efficiency and product quality that we expect. With or without such difficulties, the integration of the Kronos Louisiana facility into our operations may divert significant management time and attention from our other operations. If we fail to successfully integrate the Kronos Louisiana facility into our operations, if the acquisition does not provide expected synergies or sales increases, or if Kronos Louisiana has unexpected legal, regulatory, or financial liabilities, our business, financial condition, results of operations and prospects could be adversely affected.

Financial Risk Factors

Our leverage may impair our financial condition or limit our ability to operate our businesses.

We have a significant amount of debt, primarily related to our 9.50% Senior Secured Notes due 2029, our term loan from Contran, and borrowings on our global revolving credit facility (the “Global Revolver”). As of December 31, 2025, our total consolidated debt was approximately $557.4 million. Our level of debt could have important consequences to our stockholders and creditors, including:

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Indebtedness outstanding under our Global Revolver accrues interest at variable rates. To the extent market interest rates rise, the cost of our debt could increase, even if the amount borrowed remains the same, adversely affecting our financial condition, results of operations and cash flows.

In addition to our indebtedness, we are party to various lease and other agreements (including feedstock purchase contracts with minimum commitments and other long-term supply and service contracts, as discussed above) pursuant to which, along with our indebtedness, we are committed to pay approximately $193 million in 2026. Our ability to make payments on and refinance our debt and to fund planned capital expenditures depends on our ability to generate cash flow in the future. To some extent, this is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond our control. In addition, our ability to borrow funds under our Global Revolver in the future, in some instances, will depend in part on our ability to maintain specified financial ratios and satisfy certain financial covenants contained in the credit agreement governing the Global Revolver.

Our business may not generate cash flows from operating activities sufficient to enable us to pay our debts when they become due and to fund our other liquidity needs. As a result, we may need to refinance all or a portion of our debt before maturity, as we have done in the past. We may not be able to refinance any of our debt in a timely manner on favorable terms, if at all, in the current credit markets. Any inability to generate sufficient cash flows or to refinance our debt on favorable terms could have a material adverse effect on our financial condition.

Changes in currency exchange rates and interest rates can adversely affect our net sales, profits and cash flows.

We operate our businesses in several different countries and sell our products worldwide. For example, during 2024 and 2025, approximately 44% and 45% of our sales volumes, respectively, were sold into European markets. The majority (but not all) of our sales from our operations outside the United States are denominated in currencies other than the United States dollar, primarily the euro, other major European currencies and the Canadian dollar. Therefore, we are exposed to risks related to the need to convert currencies we receive from the sale of our products into the currencies required to pay for certain of our operating costs and expenses and other liabilities (including indebtedness), all of which could result in future losses depending on fluctuations in currency exchange rates and affect the comparability of our results of operations between periods.

Legal, Compliance and Regulatory Risk Factors

We may be subject to litigation, the disposition of which could have a material adverse effect on our results of operations.

The nature of our operations exposes us to possible litigation claims, including disputes with customers and suppliers and matters relating to, among other things, antitrust, product liability, intellectual property, employment and environmental claims. It is possible that judgments could be rendered against us in these or other types of cases for which we could be uninsured or not covered by indemnity, or which may be beyond the amounts that we currently have reserved or anticipate incurring for such matters. Some of the lawsuits may seek fines or penalties and damages in large amounts or seek to restrict our business activities. Because of the uncertain nature of litigation and coverage decisions, we cannot predict the outcome of these matters or whether insurance claims may mitigate any damages ultimately determined to be owed by us. Any liability we might incur in the future could be material. In addition, litigation is very costly, and the costs associated with defending litigation matters could have a material adverse effect on our results of operations.

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Environmental, health and safety laws and regulations may result in increased regulatory scrutiny which could decrease demand for our products, increase our manufacturing and compliance costs or obligations and result in unanticipated losses which could negatively impact our financial results or limit our ability to operate our business.

From time to time, new environmental, health and safety regulations are passed or proposed in the countries in which we operate or sell our products, seeking to regulate our operations or to restrict, limit or classify TiO2, or its use. Increased regulatory scrutiny could affect consumer perception of TiO2 or limit the marketability and demand for TiO2 or products containing TiO2 or increase our manufacturing and regulatory compliance obligations and costs. Increased compliance obligations and costs or restrictions on operations, raw materials and certain TiO2 applications could negatively impact our future financial results through increased costs of production, or reduced sales which may decrease our liquidity, operating income and results of operations.

If some or all of our intellectual property were to be declared invalid, held to be unenforceable or copied by competitors or some or all of our confidential information become known to competitors, or if our competitors were to develop similar or superior intellectual property or technology, our ability to compete could be adversely impacted.

Protection of our intellectual property rights, including patents, copyrights, trade secrets, confidential information, trademarks and tradenames, is important to our business and our competitive position. We endeavor to protect our intellectual property rights in key jurisdictions in which our products are produced, sold or used and in jurisdictions into which our products are imported. However, we may be unable to obtain protection for our intellectual property in key jurisdictions. Although we own and have applied for numerous patents and trademarks throughout the world, we may have to engage in judicial enforcement in order to protect our patent rights and other proprietary rights. Our patents and other intellectual property rights may be challenged, invalidated, circumvented, rendered unenforceable or otherwise compromised. A failure to protect, defend or enforce our intellectual property could have an adverse effect on our financial condition and results of operations. Similarly, third parties may assert claims against us and our customers and distributors alleging our products infringe upon third-party intellectual property rights. In the event that any such third-party prevails against us on such claims, there could be an adverse effect on our financial condition and results of operations.

Although it is our practice to enter into confidentiality agreements with our employees and third parties to protect our proprietary expertise and other trade secrets, these agreements may not provide sufficient protection for our trade secrets or proprietary know-how, or adequate remedies for breaches of such agreements may not be available in the event of an unauthorized use or disclosure of such trade secrets and know-how. We also may not be able to readily detect breaches of such agreements. The failure of our confidentiality agreements to protect our proprietary technology, know-how or trade secrets could result in a material loss of our competitive position, which could lead to significantly lower revenues, reduced profit margins or loss of market share.

If we must take legal action to protect, defend or enforce our intellectual property rights, any suits or proceedings could result in significant costs, including attorney’s fees and diversion of resources and management’s attention, and we may not prevail in any such suits or proceedings.

Global climate change laws and regulations could negatively impact our financial results or limit our ability to operate our businesses.

We operate production facilities in several countries and many of our facilities require large amounts of energy, including electricity and natural gas, in order to conduct operations. Governmental agencies of countries in which we operate have determined, or may determine in the future, the consumption of energy derived from fossil fuels is a major contributor to climate change and have adopted or are contemplating regulatory changes in response to the potential impact of climate change, including laws and regulations requiring enhanced reporting (such as the Corporate Social Responsibility Directive adopted by the European Union on November 28, 2022) as well as legislation regulating carbon and other GHG emissions and the use of renewable energy. International treaties or agreements may also result in increasing regulation of GHG emissions, including emissions permits and/or energy taxes or the introduction of carbon emissions trading mechanisms. To date, the existing GHG laws and regulations in effect in the various countries in which we operate have not had a material adverse effect on our financial results. Until the timing, scope and extent of any new or future regulation becomes known, we cannot predict the effect on our business, results of operations or financial

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condition. However, if further GHG laws and regulations were to be enacted in one or more countries, it could negatively impact our future results of operations through increased costs of production, particularly as it relates to our energy requirements or our need to obtain emissions permits. If such increased costs of production were to materialize, we may be unable to pass price increases on to our customers to compensate for increased production costs, which may decrease our liquidity, operating income and results of operations. In addition, any adopted future laws and regulations focused on climate change and/or GHG emissions could negatively impact our ability (or that of our customers and suppliers) to compete with companies situated in areas not subject to such laws and regulations.

General Risk Factors

Operating as a global business presents risks associated with global and regional economic, political and regulatory environments.

We manufacture and distribute our products globally. Revenue from non-U.S. markets accounted for approximately 66%, 66% and 64% of our revenue for the years ended December 31, 2023, 2024 and 2025, respectively. We have significant international operations which, along with our customers and suppliers, could be substantially affected by a number of risks arising from operating a multi-national business, including:

● global or regional economic downturn;

● difficulties enforcing agreements or other legal rights; and

TiO2 production requires significant energy input, and economic sanctions or supply disruptions resulting from armed conflict could lead to additional volatility in global energy prices and energy supply disruptions. These risks, individually or in the aggregate, could have an adverse effect on our results of operations and financial condition.

The U.S. federal government has recently implemented tariffs on certain foreign goods and may implement additional tariffs on foreign goods. As we currently manufacture a significant portion of our North American TiO2 in Canada, if sustained for an extended period of time, a tariff on our imports into the U.S. from Canada would make our products manufactured in Canada and sold into the U.S. more expensive. As a result, demand for these products could be reduced, or we could be required to absorb the increased costs or increase prices of such products. Tariff mitigation strategies, such as those we undertook in the first quarter of 2025 which included building and positioning inventory from our Canadian facility into the U.S., may result in increased shipping and warehousing costs. Future mitigation strategies may offer only temporary relief from the effect of these tariffs. Such tariffs and, if enacted, any further legislation or actions taken by the U.S. government that restrict trade, such as additional tariffs, trade barriers and other protectionist or retaliatory measures taken in response, could adversely impact our ability to sell our products in the U.S. or reduce our revenues and gross margins. These measures may also increase our costs of Canadian feedstock imported into the U.S. and could adversely impact our gross margins or require us to raise prices thereby making our products less competitive. Additional tariffs imposed by the U.S or any retaliatory or reciprocal tariffs imposed by other countries could also increase the cost of feedstock and other raw materials that go into making TiO2, the extent of which is unknown. The ultimate impact of any

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tariffs will depend on various factors, including the length of time tariffs are ultimately implemented and the amount, scope and nature of the tariffs.

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Technology failures or cybersecurity breaches could have a material adverse effect on our operations.

We rely on integrated information technology systems to manage, process and analyze data, including to facilitate the manufacture and distribution of products to and from our facilities, receive, process and ship orders, manage the billing of and collections from customers and manage payments to vendors. Although we have systems and procedures in place to protect our information technology systems, there can be no assurance that such systems and procedures will be sufficiently effective. Therefore, any of our information technology systems may be susceptible to outages, disruptions or destruction from power outages, telecommunications failures, employee error, cybersecurity breaches or attacks and other similar events. This could result in a disruption of our business operations, injury to people, harm to the environment or our assets, and/or the inability to access our information technology systems and could adversely affect our results of operations and financial condition. We have in the past experienced, and we expect to continue to experience, cyber-attacks, including phishing and other attempts to breach, or gain unauthorized access to, our systems, and vulnerabilities introduced into our systems by trusted third-party vendors who have experienced cyber-attacks. To date we have not suffered breaches in our systems, either directly or through a trusted third-party vendor, which have led to material losses. Due to the increase in global cybersecurity incidents it has become increasingly difficult to obtain insurance coverage on reasonable pricing terms to mitigate some risks associated with technology failures or cybersecurity breaches, and we are experiencing such difficulties in obtaining insurance coverage.

Physical impacts of climate change could have a material adverse effect on our costs and operations.

Climate change may increase both the frequency and severity of extreme weather conditions and natural disasters, such as hurricanes, thunderstorms, tornadoes, drought and snow or ice storms. Extreme weather conditions may increase our costs or cause damage to our facilities, and any damage resulting from extreme weather may not be fully insured. Climate change has also been associated with rising sea levels and many of our facilities are located near coastal areas or waterways where rising sea levels or flooding could disrupt our operations or adversely impact our facilities. Furthermore, periods of extended inclement weather or associated droughts or flooding may inhibit our facility operations and delay or hinder shipments of our products to customers. Any such events could have a material adverse effect on our costs or results of operations.

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ITEM 1B.UNRESOLVED STAFF COMMENTS

None

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ITEM 1C.CYBERSECURITY

We recognize the importance of proactively assessing, identifying and managing material risks associated with cybersecurity threats. These risks include, among other things: operational disruptions, intellectual property theft, fraud, extortion, harm to employees or customers and violations of data privacy or security laws. Our cybersecurity program is built on both operational and compliance foundations. The operational component focuses on continuous monitoring, detection, prevention, measurement, analysis and response to cybersecurity threats and incidents, including emerging risks. The compliance component provides oversight through risk-based controls designed to protect the confidentiality, integrity and availability of company data stored, processed or transmitted. Our cybersecurity program is fully integrated into our enterprise-wide risk management framework.

Our cybersecurity program is led by our chief information officer (“CIO”), who is ultimately responsible for developing and executing our overall information security strategy, policies, security engineering, operations and cyber threat detection and response.Our CIO has extensive information technology (“IT”) and program management experience and leads a team with significant tenure and familiarity with our organization.Our cybersecurity risks are also reviewed and tested annually through third party assessments and internal and external information technology audits.Our information technology team reviews cybersecurity risks at least annually, integrating findings into strategic risk assessments and applicable corrective action plans. Our CIO reports to our chief executive officer.

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We continually enhance our cyber defense strategy with the ultimate goal of preventing cybersecurity incidents to the extent feasible, while simultaneously bolstering our system resilience in an effort to minimize the business impact should an incident occur. Third parties also play a role in our cybersecurity posture. We engage reputable third-party security firms to provide guidance on industry best practices and regulatory standards, to support proactive and reactive cybersecurity efforts, and to conduct periodic evaluations of our cybersecurity posture, including red team testing and security audits; these evaluations include testing both the design and operational effectiveness of our security controls. All company employees are required to complete cybersecurity training at least twice a year, have access to on-demand cybersecurity training through a web-based tool, and receive additional informational updates as necessary. Employees in certain roles also receive additional role-based, specialized cybersecurity training.

We have a Cybersecurity Incident Disclosure and Controls Committee (“CIDAC”) which is central to our response and evaluation of cybersecurity incidents. Our CIDAC is comprised of our CIO and other senior executives including our chief financial officer, chief operating officer and general counsel. Information security events and incidents are evaluated, ranked by severity and prioritized for response and remediation. Our IT team is responsible for categorizing cybersecurity incidents, and those deemed high-risk or critical are escalated to the CIDAC for strategic review and response coordination. Incidents are evaluated to determine regulatory requirements, materiality, and potential operational, financial and reputational impact. Our CIDAC performs simulations and tabletop exercises at a management level to evaluate our readiness and response to cybersecurity incidents. As needed, we collaborate with external cybersecurity experts and legal advisors to help ensure a robust response strategy.

Our board of directors oversees management’s processes for identifying and mitigating risks, including cybersecurity risks, to help align our risk exposure with our strategic objectives. Senior leadership, including our CIO, provides regular updates to the board of directors on our cybersecurity posture, emerging threats and our risk mitigation efforts. Our board of directors is apprised of cybersecurity incidents deemed to have significant business impact, even if they are not material to us. The board has delegated some of its primary risk oversight to board committees, including that our audit committee facilitates the board’s process of oversight of our overall risk management approach. Our full board retains oversight of cybersecurity because of its importance to us and visibility with our customers.

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We also maintain a documented incident response plan. In the event of an incident, we follow a structured incident response playbook, which outlines clear and defined steps to be followed from incident detection to mitigation, recovery and notification, including notifying functional areas (such as legal and human resources), senior leadership and the board, as appropriate. We also conduct post-incident reviews to identify lessons learned and implement continuous improvements.

We face a number of cybersecurity risks. To date, such risks have not materially affected us, including our business strategy, results of operations or financial condition. While we have not experienced any major breaches, we actively monitor and mitigate cyber threats, including phishing attempts, malware, and targeted attacks. Thus far all such incidents have been minor, isolated and promptly contained. For more information about the cybersecurity risks we face, see the risk factor entitled “Technology failures or cybersecurity breaches could have a material adverse effect on our operations.” in Item 1A- Risk Factors.

ITEM 2.PROPERTIES

Information on our properties is incorporated by reference to Item 1: Manufacturing, Operations and Properties above. Our corporate headquarters is located in Dallas, Texas. See Notes 1 and 7 to our Consolidated Financial Statements for information on our leases.

ITEM 3.LEGAL PROCEEDINGS

We are involved in various environmental, contractual, intellectual property, product liability and other claims and disputes incidental to our business. Information required for this Item is incorporated by reference to Note 15 to our Consolidated Financial Statements.

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ITEM 4.MINE SAFETY DISCLOSURES

Not applicable

PART II

Our common stock is listed and traded on the New York Stock Exchange (symbol: KRO). As of February 27, 2026, there were approximately 1,400 holders of record of our common stock.

In December 2010, our board of directors authorized the repurchase of up to 2.0 million shares of our common stock in open market transactions, including block purchases, or in privately-negotiated transactions at unspecified prices and over an unspecified period of time. We have 1,017,518 shares available for repurchase under the stock repurchase program at December 31, 2025 after repurchasing 313,814 shares in 2023 and none in both 2024 and 2025. See Note 13 to our Consolidated Financial Statements.

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Performance graph

Set forth below is a table and line graph comparing the yearly change in our cumulative total stockholder return on our common stock against the cumulative total return of the S&P 500 Composite Stock Index and an index of a self-selected peer group of companies. The peer group index is comprised of The Chemours Company and Tronox Holdings PLC. The graph shows the value at December 31 of each year, assuming an original investment of $100 at December 31, 2020 and reinvestment of cash dividends and other distributions to stockholders.

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

The information contained in the performance graph shall not be deemed “soliciting material” or “filed” with the SEC, or subject to the liabilities of Section 18 of the Securities Exchange Act, except to the extent we specifically request that the material be treated as soliciting material or specifically incorporate this performance graph by reference into a document filed under the Securities Act or the Securities Exchange Act.

Equity compensation plan information

We have an equity compensation plan, which was approved by our stockholders, pursuant to which an aggregate of 200,000 shares of our common stock can be awarded to members of our board of directors. At December 31, 2025, 71,000 shares are available for awards under this plan. See Note 13 to our Consolidated Financial Statements.

ITEM 6.RESERVED

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RESULTS OF OPERATIONS

Business overview

We are a leading global producer and marketer of value-added TiO2. TiO2 is used for a variety of manufacturing applications, including paints, plastics, paper and other industrial and specialty products. During 2025, 45% of our sales volumes were sold into European markets. We believe we are the largest producer of TiO2 in Europe with an estimated 15% share of European TiO2 sales volumes in 2025. In addition, we estimate we have a 19% share of North American TiO2 sales volumes in 2025. Our production facilities are located in Europe and North America.

We consider TiO2 to be a “quality of life” product, with demand affected by gross domestic product, or GDP, and overall economic conditions in our markets located in various regions of the world. Over the long-term, we expect demand for TiO2 will grow by 2% to 3% per year, consistent with our expectations for the long-term growth in GDP. However, even if we and our competitors maintain consistent shares of the worldwide market, demand for TiO2 in any interim or annual period may not change in the same proportion as the change in GDP, in part due to relative changes in the TiO2 inventory levels of our customers. We believe our customers’ inventory levels are influenced in part by their expectation for future changes in TiO2 selling prices as well as their expectation for future availability of product. Although certain of our TiO2grades are considered specialty pigments, the majority of our grades and substantially all of our production are considered differentiated commodity pigment products with price and availability being the most significant competitive factors along with product quality and customer and technical support services.

The factors having the most impact on our reported operating results are:

● TiO2 selling prices,

● TiO2 sales and production volumes,

Our key performance indicators are our TiO2 average selling prices, our TiO2 sales and production volumes and the cost of titanium-containing feedstock purchased from third parties. TiO2selling prices generally follow industry trends and selling prices will increase or decrease generally as a result of competitive market pressures.

Executive summary

We reported a net loss of $110.9 million, or $.96 per share, in 2025 compared to net income of $86.2 million, or $.75 per share, in 2024. The decline in results was primarily driven by lower income from operations. In 2025, we experienced an increase in unabsorbed fixed production costs due to production curtailments, lower average TiO2 selling prices, and higher distribution and warehousing costs. Distribution and warehousing costs were elevated mainly in the first quarter of 2025 as we repositioned finished goods inventory in the U.S. ahead of anticipated U.S. federal government tariff announcements. We also incurred higher carrying costs associated with increased finished goods inventory volumes in 2025 compared to 2024. To manage inventory levels and preserve liquidity, we implemented production curtailments in 2025, most significantly during the fourth quarter. Additionally, in the fourth quarter of 2025, we implemented cost reduction initiatives, including workforce reductions and other measures, to improve our long-term cost structure and reduce overall production costs. Comparability of our results are also impacted by the effects of changes in currency exchange rates.

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As previously reported, effective July 16, 2024 (the “Acquisition Date”), we acquired the 50% joint venture interest in LPC previously held by Venator Investments, Ltd. (“Venator”). Prior to the acquisition, we held a 50% joint venture interest in LPC through a wholly-owned subsidiary. LPC was operated as a manufacturing joint venture between us and Venator. Following the acquisition, LPC became a wholly-owned subsidiary of ours. In 2025, we merged LPC into our wholly-owned subsidiary Kronos Louisiana, Inc. (the combined company is referred to as “Kronos Louisiana”). We accounted for the acquisition as a business combination. The results of operations of LPC are included in our Consolidated Statements of Operations beginning as of the Acquisition Date. See Note 5 to our Consolidated Financial Statements.

We reported net income of $86.2 million, or $.75 per share, in 2024 compared to a net loss of $49.1 million, or $.43 per share, in 2023. Net income increased in 2024 as compared to 2023 primarily due to higher income from operations as a result of the effects of higher sales and production volumes and lower production costs (primarily energy and raw materials), partially offset by lower average TiO2 selling prices. Our results of operations in 2023 were significantly impacted by reduced demand for certain of our products occurring in all major markets and unabsorbed fixed production costs as a result of production curtailments in response to the sharp decline in demand. With improved demand in all of our major markets in 2024 compared to 2023 we increased production volumes, contributing to our improved profitability. Comparability of our results was also impacted by the effects of changes in currency exchange rates.

Our net loss in 2025 includes:

Our net income in 2024 includes:

Our net loss in 2023 includes:

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Comparison of 2025 to 2024 Results of Operations

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ Years ended December 31,

​ ​ ​ (Dollars in millions)

Selling, general and administrative expense 225.6 12 ​ 245.2 13 ​

Other operating income (expense): ​ ​ ​ ​ ​ ​

Currency transactions, net 1.6 - ​ 5.4 - ​

Other operating expense, net ​ ​ (12.4) ​ - ​ ​ (9.7) ​ - ​

Income (loss) from operations ​ ​ 122.9 ​ 7 ​ ​ (36.5) ​ (2) ​

Corporate expense and trade interest income, net 18.1 1 ​ 14.3 1 ​

Segment profit (loss) (1) $ 141.0 8 % $ (22.2) (1) %

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ % Change ​

TiO2 operating statistics: ​ ​ ​ ​ ​ ​ ​

Sales volumes* ​ ​ 504 ​ ​ ​ ​ 512 ​ 2 %

Production volumes* ​ ​ 535 ​ ​ ​ ​ 480 ​ (10) %

Percentage change in net sales: ​ ​ ​ ​ ​ ​ ​

TiO2 sales volumes ​ ​ ​ ​ ​ ​ 2 %

TiO2 product pricing ​ ​ ​ ​ ​ (4) ​

TiO2 product mix/other ​ ​ ​ ​ ​ - ​

Changes in currency exchange rates ​ ​ ​ ​ ​ 1 ​

Total ​ ​ ​ ​ ​ ​ (1) %

* Thousands of metric tons

(1) We use segment profit (loss) to assess the performance of our TiO2 operations. Segment profit (loss) is defined as net income (loss) before income tax expense and certain general corporate items. The general corporate items include corporate expense and the components of other income (expense) except for trade interest income.

Industry conditions and 2025 overview – Throughout 2025, the market faced significant global uncertainty driven by evolving U.S. trade policies and sustained geopolitical tensions. These factors, combined with continued market weakness compared to historical periods, contributed to additional global capacity reductions by TiO2 producers in 2025, including both announced plant closures and lower operating rates. While we have seen some incremental benefit as a result of certain plant closures, primarily in Europe and particularly in the fourth quarter of 2025, the prolonged market downturn has negatively impacted our sales volume and led to pricing degradation as the year progressed. We started 2025 with average TiO2 selling prices 2% higher than at the beginning of 2024 but ended 2025 with average TiO2 selling prices 10% lower. Overall, our sales volumes have increased slightly in 2025 as compared to 2024 with higher overall sales volumes in both the European and North American markets offset by lower sales volumes to the export market.

We operated our production facilities at 96% of practical capacity utilization in 2024 and continued operating at similar rates in early 2025. When the demand outlook began to soften, we adjusted our production operating rates downward in the second and third quarters of 2025, and we implemented a more significant production curtailment in the

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fourth quarter of 2025 to reduce finished goods inventory levels and preserve liquidity. The following table shows our capacity utilization rates during 2024 and 2025.

​ ​ ​ ​ ​

​ ​ ​ ​ Production Capacity Utilization Rates

First Quarter ​ 87% ​ 93%

Second Quarter 99% ​ 81%

Third Quarter 92% ​ 80%

Fourth Quarter 97% ​ 55%

Excluding the effect of changes in currency exchange rates and unabsorbed fixed costs, our cost of sales per metric ton of TiO2 sold in 2025 was lower as compared to 2024 primarily due to decreases in per metric ton production costs (primarily raw materials).

In response to the extended period of reduced demand in 2025, discussed above, we have taken measures to further reduce our operating costs and improve our long-term cost structure. In the fourth quarter of 2025, we implemented certain voluntary and involuntary workforce reductions across our operating locations impacting both manufacturing and selling, general and administrative costs. We recognized a total of approximately $10 million in restructuring charges in the fourth quarter of 2025 related to workforce reductions impacting approximately 226 positions. See Note 17 to our Consolidated Financial Statements.

Net sales – Our net sales in 2025 decreased 1%, or $27.7 million, compared to 2024 primarily due to a 4% decrease in average TiO2selling prices (which decreased net sales by approximately $75 million) somewhat offset by a 2% increase in sales volumes (which increased net sales by approximately $38 million). Additionally, we estimate that changes in currency exchange rates (primarily the euro) increased our net sales by approximately $24 million in 2025 as compared to 2024. TiO2 selling prices will increase or decrease generally as a result of competitive market pressures and changes in the relative level of supply and demand as well as changes in raw material and other manufacturing costs.

Our sales volumes increased 2% as compared to 2024 primarily due to market share gains in our European, North American and Latin American markets related to our 2024 acquisition of LPC. Our sales volumes were 7% higher in the fourth quarter of 2025 as compared to the fourth quarter of 2024 primarily due to incremental market share increases in the European market as a result of competitor plant closures in Europe.

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Cost of sales and gross margin – Cost of sales increased $118.6 million, or 8%, in 2025 compared to 2024 due to the net effects of approximately $111 million in unabsorbed fixed production costs (including $54 million in the fourth quarter) recognized as a result of reduced operating rates at our production facilities, lower production costs of approximately $14 million (primarily raw materials) and favorable currency fluctuations (primarily the euro). Our unabsorbed fixed production costs in 2024 were $12 million. Cost of sales in 2025 includes a charge in the fourth quarter of 2025 of approximately $4 million related to workforce reductions noted above. Our cost of sales in 2024 include a charge of approximately $2 million related to workforce reductions and approximately $14 million in non-cash charges related to the closure of our sulfate process line in Canada.

Our cost of sales as a percentage of net sales increased to 89% in 2025 compared to 81% in 2024 primarily due to the unfavorable fixed cost absorption and currency fluctuations, as discussed above.

Gross margin as a percentage of net sales decreased to 11% in 2025 compared to 19% in 2024. As discussed and quantified above, our gross margin as a percentage of net sales decreased primarily due to lower average TiO2 selling prices and lower production volumes resulting in unfavorable fixed cost absorption.

Selling, general and administrative expense –Selling, general and administrative expense increased $19.6 million, or 9%, in 2025 compared to 2024 primarily due to an increase in warehousing costs related to carrying higher

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overall levels of finished goods inventory volumes in 2025 compared to 2024 as well as incremental warehousing costs incurred during the first quarter of 2025 to position inventory produced in Canada into the U.S. in response to anticipated U.S federal government tariff announcements. Our selling, general and administrative expense in 2025 includes approximately $6 million related to workforce reductions recognized in the fourth quarter as noted above. Our selling, general and administrative expense in 2024 includes $2.2 million of transaction costs incurred in connection with the LPC acquisition. Selling, general and administrative expense as a percentage of net sales increased 1% in 2025 as compared to 2024 as a result of the factors described above.

Segment profit (loss) –Segment profit decreased by $163.2 million to a segment loss of $22.2 million in 2025 compared to segment profit of $141 million in 2024 as a result of the factors impacting gross margin discussed above. We estimate that changes in currency exchange rates decreased our segment loss by approximately $8 million in 2025 as compared to 2024, as discussed in the effects of currency exchange rates section below.

Other non-operating income (expense) – Interest expense in 2025 increased $10.1 million compared to 2024 primarily due to higher average debt balances and higher average interest rates. We recognized a loss of $1.6 million on the change in value of our marketable equity securities in 2025 compared to a gain of $1.2 million in 2024. See Note 6 to our Consolidated Financial Statements. In 2025, we recognized a non-cash gain of $4.6 million due to the remeasurement of our earn-out liability. In 2024, we recognized a gain on the remeasurement of our investment in LPC of $64.5 million as a result of the acquisition. See Note 5 to our Consolidated Financial Statements. Other components of net periodic pension and OPEB cost in 2025 increased $10.5 million compared to 2024 primarily due to a $9 million settlement loss incurred in the fourth quarter of 2025 related to the termination of our U.S. pension plan. See Note 10 to our Consolidated Financial Statements.

Income tax expense – We recognized income tax expense of $13.5 million in 2025 compared to income tax expense of $63.4 million in 2024. The difference is primarily due to lower earnings in 2025 and the jurisdictional mix of such earnings, partially offset by the following:

Our earnings are subject to income tax in various U.S. and non-U.S. jurisdictions, and the income tax rates applicable to the pre-tax earnings (losses) of our non-U.S. operations are generally higher than the income tax rates applicable to our U.S. operations. We would generally expect our overall effective tax rate, excluding the effect of any increase or decrease in our deferred income tax asset valuation allowance or tax rate changes to be higher than the U.S. federal statutory tax rate of 21% primarily because of our sizeable non-U.S. operations. See Note 12 to our Consolidated Financial Statements for a tabular reconciliation of our statutory income tax provision to our actual tax provision.

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Comparison of 2024 to 2023 Results of Operations

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ Years ended December 31,

​ ​ (Dollars in millions)

Selling, general and administrative expense ​ 211.2 13 ​ 225.6 12 ​

Other operating income (expense): ​ ​ ​ ​ ​ ​ ​

Currency transactions, net ​ 1.4 - ​ 1.6 - ​

Other operating expense, net ​ ​ (11.1) ​ - ​ ​ (12.4) ​ - ​

Income (loss) from operations ​ ​ (56.0) ​ (3) ​ ​ 122.9 ​ 7 ​

Corporate expense and trade interest income, net ​ ​ 16.2 ​ 1 ​ ​ 18.1 ​ 1 ​

Segment profit (loss) (1) $ (39.8) (2) % $ 141.0 8 %

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ % Change ​

TiO2 operating statistics: ​ ​ ​ ​ ​ ​ ​ ​

Production volumes* ​ 401 ​ ​ ​ 535 ​ 33 %

Percentage change in net sales: ​ ​ ​ ​ ​ ​ ​ ​

TiO2 sales volumes ​ ​ ​ ​ ​ ​ 20 %

TiO2 product pricing ​ ​ ​ ​ ​ ​ (5) ​

TiO2 product mix/other ​ ​ ​ ​ ​ ​ (2) ​

Changes in currency exchange rates ​ ​ ​ ​ ​ ​ - ​

Total ​ ​ ​ ​ ​ ​ 13 %

*Thousands of metric tons

(1) We use segment profit (loss) to assess the performance of our TiO2 operations. Segment profit (loss) is defined as net income (loss) before income tax expense and certain general corporate items. The general corporate items include corporate expense and the components of other income (expense) except for trade interest income.

Net sales – Our net sales in 2024 increased 13%, or $220.6 million, compared to 2023 primarily due to the effects of a 20% increase in sales volumes due to improved overall demand across all major markets (which increased net sales by approximately $333 million) partially offset by a 5% decrease in average TiO2selling prices (which decreased net sales by approximately $83 million). Changes in product mix negatively contributed to net sales, primarily due to changes in product sales mix in export markets in 2024 as compared to 2023. Additionally, we estimate that changes in currency exchange rates (primarily the euro) increased our net sales by approximately $5 million in 2024 as compared to 2023. TiO2 selling prices will increase or decrease generally as a result of competitive market pressures and changes in the relative level of supply and demand as well as changes in raw material and other manufacturing costs. Incremental sales volumes resulting from the LPC acquisition did not significantly impact comparisons to the prior year.

Cost of sales and gross margin – Cost of sales increased $26.2 million, or 2%, in 2024 compared to 2023 due to the net effects of a 20% increase in sales volumes, a 33% increase in production rates resulting in reduced unabsorbed fixed production costs, and lower production costs of approximately $115 million (primarily energy and raw materials). Our unabsorbed fixed production costs in 2024 were $12 million (incurred in the first quarter) compared to $96 million in 2023 related to curtailments that began in 2022 and continued into the first quarter of 2024, as discussed above. Our cost of sales in 2024 include a charge of approximately $2 million related to workforce reductions and approximately $14 million in non-cash charges related to the closure of our sulfate process line in Canada. Sales and production volumes resulting from the LPC acquisition did not materially impact comparisons to the prior year.

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Our cost of sales as a percentage of net sales decreased to 81% in 2024 compared to 90% in 2023 primarily due to the favorable effects of increased sales, lower production costs and higher production volumes resulting in increased coverage of fixed production costs.

Gross margin as a percentage of net sales increased to 19% in 2024 compared to 10% in 2023. As discussed and quantified above, our gross margin as a percentage of net sales increased primarily due to higher sales and production volumes as well as lower production costs, partially offset by lower average TiO2 selling prices.

Selling, general and administrative expense –Selling, general and administrative expense increased $14.4 million, or 7%, in 2024 compared to 2023. This increase was primarily due to higher distribution costs related to higher overall sales volumes compared to 2023. Our selling, general and administrative expense in 2024 also includes $2.2 million of transaction costs incurred in connection with the LPC acquisition. Selling, general and administrative expense also decreased due to lower costs related to workforce reductions in 2024 compared to 2023.

Segment profit (loss) –We had segment profit of $141.0 million in 2024 compared to a segment loss of $39.8 million in 2023 as a result of the factors impacting gross margin discussed above. We recognized a gain of $2.5 million in 2023 related to cash received from the settlement of a business interruption insurance claim. See Note 17 to our Consolidated Financial Statements. We estimate that changes in currency exchange rates increased our segment profit by approximately $10 million in 2024 as compared to 2023, as further discussed below.

Other non-operating income (expense) – We recognized a gain on the remeasurement of our investment in LPC of $64.5 million in 2024 as a result of the acquisition. See Note 5 to our Consolidated Financial Statements. Interest expense in 2024 increased $25.8 million compared to 2023 primarily due to higher interest rates on the debt exchange and the issuance of new notes discussed below and higher average debt balances as a result of the LPC acquisition. As a result of the exchange, interest expense for 2024 also includes a charge of $1.5 million for the write-off of deferred financing costs. See Note 8 to our Consolidated Financial Statements. We recognized a gain of $1.2 million on the change in value of our marketable equity securities in 2024 compared to a loss of $1.0 million in 2023. See Note 6 to our Consolidated Financial Statements. Other components of net periodic pension and OPEB cost in 2024 decreased $4.1 million compared to 2023 primarily due to a higher expected return on plan assets, lower discount rates impacting interest costs and a non-recurring $1.3 million in settlement costs related to the termination and buy-out of our UK pension plan in the second quarter of 2023. See Note 10 to our Consolidated Financial Statements.

Income tax expense (benefit) –We recognized income tax expense of $63.4 million in 2024 compared to an income tax benefit of $23.8 million in 2023. The difference is primarily due to higher earnings in 2024 and the jurisdictional mix of such earnings. Our earnings are subject to income tax in various U.S. and non-U.S. jurisdictions, and the income tax rates applicable to the pre-tax earnings (losses) of our non-U.S. operations are generally higher than the income tax rates applicable to our U.S. operations. We would generally expect our overall effective tax rate, excluding the effect of any increase or decrease in our deferred income tax asset valuation allowance or changes in our reserve for uncertain tax positions, to be higher than the U.S. federal statutory tax rate of 21% primarily because of our sizeable non-U.S. operations.

Our income tax expense in 2024 includes a non-cash deferred income tax expense of $8.2 million, recognized in the fourth quarter, related to the recognition of a deferred income tax asset valuation allowance related to our Belgian net deferred tax assets. We continue to believe we will ultimately realize the full benefit of our Belgian NOL carryforwards, in part because of their indefinite carryforward period. However, our ability to reverse all or a portion of such valuation allowance in the future is dependent on the presence of sufficient positive evidence, such as the existence of cumulative profits in the most recent twelve consecutive quarters, and the ability to demonstrate future profitability for a sustainable period. Until such time as we are able to reverse the valuation allowance in full, to the extent we generate additional losses in Belgium in the intervening periods, our effective income tax rate will be negatively impacted because any further losses will effectively be recognized without the net income tax benefit. See Note 12 to our Consolidated Financial Statements for a tabular reconciliation of our statutory income tax provision to our actual tax provision.

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Effects of currency exchange rates

We have substantial operations and assets located outside the United States (primarily in Germany, Belgium, Norway and Canada). The majority of our sales from non-U.S. operations are denominated in currencies other than the U.S. dollar, principally the euro, other major European currencies and the Canadian dollar. A portion of our sales generated from our non-U.S. operations is denominated in the U.S. dollar (and consequently our non-U.S. operations will generally hold U.S. dollars from time to time). Certain raw materials used in all our production facilities, primarily titanium-containing feedstocks, are purchased primarily in U.S. dollars, while labor and other production and administrative costs are incurred primarily in local currencies. Consequently, the translated U.S. dollar value of our non-U.S. sales and operating results are subject to currency exchange rate fluctuations which may favorably or unfavorably impact reported earnings and may affect the comparability of period-to-period operating results. In addition to the impact of the translation of sales and expenses over time, our non-U.S. operations also generate currency transaction gains and losses which primarily relate to (i) the difference between the currency exchange rates in effect when non-local currency sales or operating costs (primarily U.S. dollar denominated) are initially accrued and when such amounts are settled with the non-local currency (ii) changes in currency exchange rates during time periods when our non-U.S. operations are holding non-local currency (primarily U.S. dollars) and (iii) relative changes in the aggregate fair value of currency forward contracts held from time to time. We periodically use currency forward contracts to manage a portion of our currency exchange risk, and relative changes in the aggregate fair value of any currency forward contracts we hold from time to time serves in part to mitigate the currency transaction gains or losses we would recognize from the first two items described above.

Fluctuations in currency exchange rates had the following effects on our sales and income (loss) from operations for the periods indicated.

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Impact of changes in currency exchange rates - 2025 vs. 2024

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Translation ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ gains ​ Total currency

​ Transaction gains recognized ​ impact of ​ impact

​ ​ (In millions)

Impact on: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Net sales ​ $ - ​ $ - ​ $ - ​ $ 24 ​ $ 24

Income (loss) from operations ​ 2 ​ 5 ​ 3 ​ 5 ​ 8

​

The $24 million increase in net sales (translation gains) was caused primarily by a weakening of the U.S. dollar relative to the euro, as our euro-denominated sales were translated into more U.S. dollars in 2025 as compared to 2024. The strengthening of the U.S. dollar relative to the Canadian dollar and the weakening of the U.S. dollar relative to the Norwegian krone in 2025 did not have a significant effect on our net sales, as a substantial portion of the sales generated by our Canadian and Norwegian operations is denominated in the U.S. dollar.

The $8 million decrease in loss from operations was comprised of the following:

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​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Impact of changes in currency exchange rates - 2024 vs. 2023

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Translation ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ gains ​ Total currency

​ Transaction gains recognized ​ impact of ​ impact

​ (In millions)

Impact on: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Net sales ​ $ - ​ $ - ​ $ - ​ $ 5 ​ $ 5

Income (loss) from operations ​ 1 ​ 2 ​ 1 ​ 9 ​ 10

​

The $5 million increase in net sales (translation gains) was caused primarily by a weakening of the U.S. dollar relative to the euro, as our euro-denominated sales were translated into more U.S. dollars in 2024 as compared to 2023. The strengthening of the U.S. dollar relative to the Canadian dollar and the Norwegian krone in 2024 did not have a significant effect on our net sales, as a substantial portion of the sales generated by our Canadian and Norwegian operations is denominated in the U.S. dollar.

The $10 million increase in income from operations was comprised of the following:

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​

​

​

​

​

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Outlook

Overall customer demand remained weaker than expected throughout 2025, driven by ongoing economic uncertainty related to tariffs and global trade tensions, as well as persistently high interest rates and elevated home prices which are impacting housing mobility. Customers were reluctant to build inventories, resulting in shorter order lead times and greater demand forecasting challenges. In the fourth quarter of 2025, we further reduced operating rates to align production with demand and to reduce our inventory levels to support cash generation. In 2025, the TiO2 industry experienced significant capacity reductions including curtailments and previously announced plant closures by multiple producers, primarily in China and Europe. In combination with ongoing tariff and anti-dumping measures, these factors created targeted opportunities for improved sales volumes and mix in select markets, most notably in Europe during the fourth quarter of 2025.

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Entering 2026, we expect demand improvement from 2025 levels, supported by low customer inventories and seasonal restocking, particularly in North America. The pace and sustainability of recovery remain uncertain and will be influenced by macroeconomic factors, including interest rates, inflation, and consumer confidence. Demand in Europe continues to lag historical levels; however, we expect European volumes to increase from 2025 levels, supported by industry capacity reductions, including the Venator bankruptcy and associated plant closures. To improve operating margins, we will need to realize price increases and execute on our operating cost structural realignment.

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We remain focused on permanently realigning our operating costs, improving capital efficiency, and preserving liquidity. Following the workforce reductions implemented in late 2025, we are pursuing additional cost savings through restructuring supplier agreements, improving asset utilization and enhancing processes to support a leaner organization capable of operating efficiently during extended periods of lower production rates.

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Liquidity and capital resources remain sufficient to support our operations and planned investments. In 2025, we increased the maximum availability under our revolving credit facility from $300 million to $350 million and refinanced our €75 million 3.75% Senior Secured Notes due September 2025 with €75 million of additional 9.50% Senior Secured Notes due 2029 (effective rate 7.8% at issuance), resulting in no near-term debt maturities. We expect cash on hand to improve over the next several quarters, and we will continue to actively manage working capital, including inventories and receivables, to bolster operating cash flows and maintain financial flexibility. We believe our revolver availability, combined with having no near-term debt maturities and improved operating cash flows, will provide adequate liquidity for expected working capital needs and capital allocation requirements.

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We are pursuing targeted market share opportunities in regions where competitors have announced permanent or temporary shutdowns or curtailments and in markets where tariffs or duties have reduced the impact of low-cost imports. Overall, while we expect operating results in 2026 to improve relative to 2025, our results will remain sensitive to demand variability, pricing competition, and the successful execution of our cost, capital and liquidity initiatives.

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Our expectations for the TiO2 industry and our operations are based on a number of factors outside our control. Our operations are affected by global and regional economic, political and regulatory factors, and we have experienced global market disruptions. Future impacts on our operations will depend on, among other things, future energy costs, the effect newly enacted tariffs in jurisdictions where we or our customers and suppliers operate, our success in implementing mitigation strategies, and the impact economic conditions, consumer confidence, and geopolitical events on our operations or our customers’ and suppliers’ operations, all of which remain uncertain and cannot be predicted.

Operations outside the United States

As discussed above, we have substantial operations located outside the United States for which the functional currency is not the U.S. dollar. As a result, the reported amount of our assets and liabilities related to our non-U.S. operations, and therefore our consolidated net assets, will fluctuate based upon changes in currency exchange rates. At December 31, 2025, we had substantial net assets denominated in the euro, Canadian dollar and Norwegian krone.

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Critical accounting policies and estimates

Our significant accounting policies are more fully described in Note 1 to our Consolidated Financial Statements. Our Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reported period. On an ongoing basis we evaluate our estimates, including those related to the recoverability of long-lived assets, pension and other postretirement benefit obligations and the underlying actuarial assumptions related thereto, the realization of deferred income tax assets and accruals for litigation, income tax and other contingencies. We base our estimates on historical experience and on various other assumptions which we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the reported amounts of assets, liabilities, revenues and expenses. Actual results may differ significantly from previously-estimated amounts under different assumptions or conditions.

We believe the most critical accounting policies and estimates involving significant judgment primarily relate to long-lived assets, defined benefit pension plans, income taxes and the acquisition of joint venture. We have discussed the development, selection and disclosure of our critical accounting estimates with the audit committee of our board of directors.

Under defined benefit pension plan accounting, defined benefit pension plan expense, pension assets and accrued pension costs are each recognized based on certain actuarial assumptions. These assumptions are principally the assumed discount rate, the assumed long-term rate of return on plan assets, the fair value of plan assets and the assumed increase in future compensation levels. We recognize the full funded status of our defined benefit pension plans as either an asset (for overfunded plans) or a liability (for underfunded

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plans) on our Consolidated Balance Sheets.

The discount rates we use for determining defined benefit pension expense and the related pension obligations are based on current interest rates earned on long-term bonds that receive one of the two highest ratings given by recognized rating agencies in the applicable country where the defined benefit pension benefits are being paid. In addition, we receive third-party advice about appropriate discount rates and these advisors may in some cases use their own market indices. We adjust these discount rates as of each December 31 valuation date to reflect then-current interest rates on such long-term bonds. We use these discount rates to determine the actuarial present value of the pension obligations as of December 31 of that year. We also use these discount rates to determine the interest component of defined benefit pension expense for the following year.

At December 31, 2025, approximately 72%, 15% and 8% of the projected benefit obligations related to our plans in Germany, Canada and Norway, respectively. We use several different discount rate assumptions in determining our consolidated defined benefit pension plan obligation and expense. This is because we maintain or participate in defined benefit pension plans in several different countries in Europe and North America and the interest rate environment differs from country to country.

We used the following discount rates for our defined benefit pension plans:

​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ Discount rates used for:

​ ​ Obligations ​ Obligations ​ Obligations

​ ​ and expense in 2024 ​ and expense in 2025 ​ and expense in 2026 ​

U.S. 5.0% ​ 5.5% ​ - ​

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The assumed long-term rate of return on plan assets represents the estimated average rate of earnings expected to be earned on the funds invested or to be invested in the plans’ assets provided to fund the benefit payments inherent in the projected benefit obligations. Unlike the discount rate, which is adjusted each year based on changes in current long-term interest rates, the assumed long-term rate of return on plan assets will not necessarily change based upon the actual short-term performance of the plan assets in any given year. Defined benefit pension expense each year is based upon the assumed long-term rate of return on plan assets for each plan, the actual fair value of the plan assets as of the beginning of the year and an estimate of the amount of contributions to and distributions from the plan during the year. Differences between the expected return on plan assets for a given year and the actual return are deferred and amortized over future periods based either upon the expected average remaining service life of the active plan participants (for plans for which benefits are still being earned by active employees) or the average remaining life expectancy of the inactive participants (for plans for which benefits are not still being earned by active employees).

At December 31, 2025, approximately 65%, 18% and 11% of the plan assets related to our plans in Germany, Canada and Norway, respectively. We use several different long-term rates of return on plan asset assumptions in determining our consolidated defined benefit pension plan expense. This is because the plan assets in different countries are invested in a different mix of investments and the long-term rates of return for different investments differ from country to country.

In determining the expected long-term rate of return on plan asset assumptions, we consider the long-term asset mix (e.g. equity vs. fixed income) for the assets for each of our plans and the expected long-term rates of return for such asset components. In addition, we receive third-party advice about appropriate long-term rates of return. We regularly review our actual asset allocation for each of our non-U.S. plans and will

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periodically rebalance the investments in each plan to more accurately reflect the targeted allocation when considered appropriate.

Our assumed long-term rates of return on plan assets for 2023, 2024 and 2025 were as follows:

​ ​ ​ ​ ​ ​ ​

​

Our long-term rate of return on plan asset assumptions in 2026 used for purposes of determining our 2026 defined benefit pension plan expense for Germany, Canada and Norway are 4.8%, 3.7% and 5.6%, respectively.

We follow ASC Topic 820, Fair Value Measurements and Disclosures, in determining the fair value of plan assets within our defined benefit pension plans. While we believe the valuation methods used to determine the fair value of plan assets are appropriate, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.

To the extent that a plan’s particular pension benefit formula calculates the pension benefit in whole or in part based upon future compensation levels, the projected benefit obligations and the pension expense will be based in part upon expected increases in future compensation levels. For all of our plans for which the benefit formula is so calculated, we generally base the assumed expected increase in future compensation levels upon average long-term inflation rates for the applicable country.

In addition to the actuarial assumptions discussed above, the amount of recognized defined benefit pension expense and the amount of net pension asset and net pension liability will vary based upon relative changes in currency exchange rates.

Based on the actuarial assumptions described above and our current expectation for what actual average currency exchange rates will be during 2026, we expect our defined benefit pension expense will approximate $8 million in 2026. In comparison, we expect to be required to contribute approximately $17 million to such plans during 2026. See Note 10 to our Consolidated Financial Statements for additional discussion of actuarial assumptions used in determining defined benefit pension assets, liabilities and expenses.

As noted above, defined benefit pension expense and the amounts recognized as accrued pension costs are based upon the actuarial assumptions discussed above. We believe all of the actuarial assumptions used are reasonable and appropriate. However, if we had lowered the assumed discount rate by 25 basis points for all plans as of December 31, 2025, our aggregate projected benefit obligations would have increased by approximately $17.0 million at that date and our defined benefit pension expense would be expected to decrease by approximately $.1 million during 2026. Similarly, if we lowered the assumed long-term rate of return on plan assets by 25 basis points for all of our plans, our defined benefit pension expense would be expected to increase by approximately $1.1 million during 2026.

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We recognize deferred taxes for future tax effects of temporary differences between financial and income tax reporting. Deferred income tax assets and liabilities for each tax-paying jurisdiction in which we operate are netted and presented as either a noncurrent deferred income tax asset or liability, as applicable. We record a valuation allowance to reduce our deferred income tax assets to the amount that is believed to be realized under the more-likely-than-not recognition criteria. While we have considered future taxable income and ongoing prudent and feasible tax planning strategies in assessing the need for a valuation allowance, it is possible that we may change our estimate of the amount of the deferred income tax assets that would more-likely-than-not be realized in the future, resulting in an adjustment to the deferred income tax asset valuation allowance that would either increase or decrease, as applicable, reported net income in the period such change in estimate was made.

We periodically review our deferred tax assets (“DTA”) to determine if a valuation allowance is required. For example, at December 31, 2025, we havesignificant German corporate and trade net operating loss (“NOL”) carryforwards of $510.8 million (DTA of $57.2 million) and $46.3 million (DTA of $5.0 million). We also have U.S. federal NOL carryforwards of $38.0 million (DTA of $8.0 million). At December 31, 2025, we have concluded no valuation allowance is required to be recognized for our German and U.S. DTAs principally because such carryforwards have an indefinite carryforward period and we currently expect to utilize the remainder of such carryforwards over the long term. Although prior to the complete utilization of such carryforwards, if we were to generate additional losses in our German or U.S. operations for an extended period of time, or if applicable laws were to change such that the carryforward periods were more limited, it is possible that we might conclude the benefit of such carryforwards would no longer meet the more-likely-than-not recognition criteria, at which point we would be required to recognize a valuation allowance against some or all of the then-remaining tax benefit associated with the carryforwards.

LIQUIDITY AND CAPITAL RESOURCES

Consolidated cash flows

Operating activities

Trends in cash flows as a result of our operating activities (excluding the impact of significant asset dispositions and relative changes in assets and liabilities) are generally similar to trends in our earnings. In addition to the impact of the operating, investing and financing cash flows discussed below, changes in the amount of cash, cash equivalents and restricted cash we report from year to year can be impacted by changes in currency exchange rates, since a portion of our cash, cash equivalents and restricted cash is held by our non-U.S. subsidiaries. For example, during 2025, relative changes in currency exchange rates resulted in a $4.5 million increase in the reported amount of our cash, cash equivalents and restricted cash compared to a $.1 million decrease in 2024 and a $1.0 million increase in 2023.

Cash provided by operating activities was $2.5 million in 2025 compared to $72.5 million in 2024. This $70.0 million decrease in the amount of cash provided was primarily due to the net effect of the following:

● lower income from operations in 2025 of $159.4 million,

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● higher cash paid for interest in 2025 of $9.2 million, and

Cash provided by operating activities was $72.5 million in 2024 compared to $5.5 million in 2023. This $67.0 million increase in the amount of cash provided was primarily due to the net effect of the following:

● higher income from operations in 2024 of $178.9 million,

● higher cash paid for interest in 2024 of $22.4 million,

● cash premium of $6.0 million on the issuance of senior notes, and

Changes in working capital are affected by accounts receivable and inventory changes. As shown below:

For comparative purposes, we have provided current and prior year numbers below.

​ ​ ​ ​ ​ ​ ​

DSO ​ 66 days ​ 62 days ​ 61 days

DSI ​ 65 days ​ 82 days ​ 57 days

Investing activities

Our capital expenditures were $42.9 million in 2025 compared to $29.5 million in 2024 and $47.4 million in 2023. Capital expenditures are primarily incurred to maintain and improve the cost effectiveness of our manufacturing facilities. Our capital expenditures during the past three years include an aggregate of $54.2 million (including $26.0 million in 2025) for our ongoing environmental protection and compliance programs.

We paid $156.8 million, net of cash acquired, in 2024 for the remaining TiO2 manufacturing joint venture interest in LPC. See Note 5 to our Consolidated Financial Statements.

Financing activities

During 2025, we:

● had net repayments of $11.3 million on our revolving credit facility, and

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During 2024, we:

During 2023, we:

In February 2026, our board of directors declared a first quarter 2026 regular quarterly dividend of $.05 per share, payable March 19, 2026 to stockholders of record as of March 10, 2026.

Outstanding debt obligations and borrowing availability

At December 31, 2025, our consolidated debt comprised:

Availability under the Global Revolver is subject to a borrowing base calculation, as defined in the agreement. The borrowing base calculated as of December 31, 2025 was approximately $251 million. Effective July 17, 2025, we completed an amendment to our Global Revolver (the “Fourth Amendment”). Among other things, the Fourth Amendment increased the maximum borrowing amount from $300 million to $350 million and increased the Belgian and German sub-limits from €30 million and €60 million to €55 million and €85 million, respectively, allowing greater access to Euro denominated borrowings. The maturity date of the Global Revolver remains July 2029. On September 15, 2025, KII issued the Additional Notes, the proceeds of which were used to refinance the 3.75% Senior Secured Notes (€75 million aggregate principal amount) that matured in September 2025. The Additional Notes were issued as additional notes to the existing €351.174 million aggregate principal amount of 9.50% Senior Secured Notes due 2029 issued on February 12, 2024 and July 30, 2024 (the “Existing Notes”). The Additional Notes were issued at a premium of 105.0% of their principal amount, resulting in net proceeds of approximately $90 million after fees and estimated expenses. The Additional Notes are fungible with the Existing Notes, are treated as a single series and have the same terms as the Existing Notes, other than their date of issuance and issue price. See Note 8 to our Consolidated Financial Statements.

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The Contran Term Loan is subordinated in right of payment to our Senior Secured Notes and our Global Revolver. Our Senior Secured Notes, the Contran Term Loan and our Global Revolver contain a number of covenants and restrictions which, among other things, restrict our ability to incur or guarantee additional debt, incur liens, pay dividends or make other restricted payments, or merge or consolidate with, or sell or transfer substantially all of our assets to, another entity, and contain other provisions and restrictive covenants customary in lending transactions of these types. Our credit agreements contain provisions which could result in the acceleration of indebtedness prior to their stated maturity for reasons other than defaults for failure to comply with typical financial or payment covenants. For example, the credit

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agreements allow the lender to accelerate the maturity of the indebtedness upon a change of control (as defined in the agreement) of the borrower. In addition, the credit agreements could result in the acceleration of all or a portion of the indebtedness following a sale of assets outside the ordinary course of business. The terms of all of our debt instruments are discussed in Note 8 to our Consolidated Financial Statements. We are in compliance with all of our debt covenants at December 31, 2025. We believe we will be able to continue to comply with the financial covenants contained in our credit facility through its maturity; however, if future operating results differ materially from our expectations we may be unable to maintain compliance.

Our assets consist primarily of investments in operating subsidiaries, and our ability to service our obligations, including the Senior Secured Notes and the Contran Term Loan, depends in part upon the distribution of earnings of our subsidiaries, whether in the form of dividends, advances or payments on account of intercompany obligations or otherwise. Our Senior Secured Notes are collateralized by, among other things, a first priority lien on (i) 100% of the common stock or other ownership interests of each existing and future direct domestic subsidiary of KII and the guarantors, and (ii) 65% of the voting common stock or other ownership interests and 100% of the non-voting common stock or other ownership interests of each non-U.S. subsidiary that is directly owned by KII or any guarantor. Our Global Revolver is collateralized by, among other things, a first priority lien on the borrower’s trade receivables and inventories.

Future cash requirements

Liquidity

Our primary source of liquidity on an ongoing basis is cash flows from operating activities which is generally used to (i) fund capital expenditures, (ii) repay any short-term indebtedness incurred for working capital purposes, (iii) provide for the payment of dividends and (iv) fund purchases of shares of our common stock under our stock repurchase program. From time-to-time we will incur indebtedness, generally to (i) fund short-term working capital needs, (ii) refinance existing indebtedness or (iii) fund major capital expenditures or the acquisition of other assets outside the ordinary course of business. We will also from time-to-time sell assets outside the ordinary course of business and use the proceeds to (i) repay existing indebtedness, (ii) make investments in marketable and other securities, (iii) fund major capital expenditures or the acquisition of other assets outside the ordinary course of business or (iv) pay dividends.

The TiO2 industry is cyclical, and changes in industry economic conditions significantly impact earnings and operating cash flows. Changes in TiO2 pricing, production volumes and customer demand, among other things, could significantly affect our liquidity.

We routinely evaluate our liquidity requirements, alternative uses of capital, capital needs and availability of resources in view of, among other things, our dividend policy, our debt service, our capital expenditure requirements and estimated future operating cash flows. As a result of this process, we have in the past and may in the future seek to reduce, refinance, repurchase or restructure indebtedness, raise additional capital, repurchase shares of our common stock, modify our dividend policy, restructure ownership interests, sell interests in our subsidiaries or other assets, or take a combination of these steps or other steps to manage our liquidity and capital resources. Such activities have in the past and may in the future involve related companies. We may also from time to time engage in preliminary discussions with existing or potential investors regarding the timing or terms of any such refinancing or other potential transactions. In the normal course of our business, we may investigate, evaluate, discuss and engage in acquisition, joint venture, strategic relationship and other business combination opportunities in the TiO2industry. In the event of any future acquisition or joint venture opportunity, we may consider using then-available liquidity, issuing our equity securities or incurring additional indebtedness.

Based upon our expectation for the TiO2industry and anticipated demands on cash resources, we expect to have sufficient liquidity to meet our short-term obligations (defined as the twelve-month period ending December 31, 2026) and our long-term obligations (defined as the five-year period ending December 31, 2030, our time period for long-term budgeting). If actual developments differ from our expectations, our liquidity could be adversely affected. Our Global Revolver matures in July 2029, and at December 31, 2025, we had total availability for borrowing of approximately $251 million under this facility. The borrowing base is calculated at least quarterly, and the amount available for borrowing may

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change based on applicable period end balances. See Note 8 to our Consolidated Financial Statements.

Cash, cash equivalents, restricted cash and marketable securities

At December 31, 2025 we had:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ Held by ​ ​ ​ ​ ​

​ ​ U.S. ​ Non-U.S. ​ ​ ​

​ ​ entities ​ entities ​ Total

​ ​ (In millions)

Cash and cash equivalents ​ $ 1.0 ​ $ 32.2 ​ $ 33.2

Current restricted cash ​ 1.4 ​ 2.4 ​ 3.8

Noncurrent restricted cash ​ - ​ 5.5 ​ 5.5

Noncurrent marketable securities ​ 1.8 ​ - ​ 1.8

Following implementation of a territorial tax system under the 2017 Tax Act, repatriation of any cash and cash equivalents held by our non-U.S. subsidiaries would not be expected to result in any material income tax liability as a result of such repatriation.

Stock repurchase program

At December 31, 2025, we have 1,017,518 shares available for repurchase under a stock repurchase program authorized by our board of directors. See Note 13 to our Consolidated Financial Statements.

Capital expenditures

We intend to spend approximately $60 million on capital expenditures during 2026 (including approximately $11 million contractually committed at December 31, 2025), primarily to maintain and improve our existing facilities. We estimate approximately $30 million of our 2026 capital expenditures will be in environmental compliance, protection and improvement programs which are primarily focused on increasing operating efficiency but also result in improved environmental protection, such as lower emissions from our manufacturing plants. Capital spending for 2026 is expected to be funded through cash on hand or borrowing under our existing credit facility. It is possible we will delay planned capital projects based on market conditions.

Commitments and contingencies

See Notes 5, 12 and 15 to our Consolidated Financial Statements for a description of certain income tax contingencies, certain legal proceedings and other commitments.

As described in the Notes to the Consolidated Financial Statements, we are a party to various debt, lease, raw material supply and other agreements which contractually and unconditionally commit us to pay certain amounts in the future. See Notes 7, 8, 14 and 15 to our Consolidated Financial Statements.

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Recent accountingpronouncements

See Note 18 to our Consolidated Financial Statements.

ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

General

We are exposed to market risk from changes in interest rates, currency exchange rates, equity security and raw material prices.

Interest rates

At December 31, 2025, our aggregate indebtedness was comprised primarily of our fixed-rate, euro-denominated KII 9.5% Senior Secured Notes due 2029. The fixed-rate debt instruments minimize earnings volatility that would result from changes in interest rates. Our Global Revolver is a variable-rate instrument and we had no borrowings outstanding

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at December 31, 2025. The following table presents principal amounts and weighted average interest rates for our aggregate outstanding indebtedness at December 31, 2025. Information shown below for our euro-denominated 9.50% Senior Secured Notes due 2029, is presented in its U.S. dollar equivalent at December 31, 2025 (net of unamortized debt issuance costs of $6.9 million, in addition to an unamortized bond premium of $9.0 million) using an exchange rate of U.S. $1.177 per euro. In addition, at December 31, 2025, we have a $53.7 million subordinated, unsecured term loan payable to a related party, Contran, due September 2029. See Notes 8 and 14 to our Consolidated Financial Statements.

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ Indebtedness amount ​ ​ ​ Year-end ​ ​ ​ ​

​ ​ Carrying ​ Fair ​ interest ​ Maturity

​ ​ amount ​ value ​ rate ​ date

​ ​ (In millions) ​ ​ ​ ​

Fixed-rate indebtedness: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Currency exchange rates

We are exposed to market risk arising from changes in currency exchange rates as a result of manufacturing and selling our products worldwide. Earnings are primarily affected by fluctuations in the value of the U.S. dollar relative to the euro, the Canadian dollar, the Norwegian krone and to a lesser extent the United Kingdom pound sterling and the value of the euro relative to the Norwegian krone.

The majority of our sales from non-U.S. operations are denominated in currencies other than the U.S. dollar, principally the euro, other major European currencies and the Canadian dollar. A portion of our sales generated from our non-U.S. operations is denominated in the U.S. dollar (and consequently our non-U.S. operations will generally hold U.S. dollars from time to time). Certain raw materials used in all our production facilities, primarily titanium-containing feedstocks, are purchased primarily in U.S. dollars, while labor and other production and administrative costs are incurred primarily in local currencies. Consequently, the translated U.S. dollar value of our non-U.S. sales and operating results are subject to currency exchange rate fluctuations which may favorably or unfavorably impact reported earnings. In addition to the impact of the translation of sales and expenses over time, our non-U.S. operations also generate currency transaction gains and losses which primarily relate to (i) the difference between the currency exchange rates in effect when non-local currency sales or operating costs (primarily U.S. dollar denominated) are initially accrued and when such amounts are settled with the non-local currency, (ii) changes in currency exchange rates during time periods when our non-U.S. operations are holding non-local currency (primarily U.S. dollars) and (iii) relative changes in the aggregate fair value of currency forward contracts held from time to time.