▸ Deterioration in the financial and credit market heightens the risk of customer bankruptcies and delay in payment. We are unable to predict the duration of the current economic conditions or their effects on financial markets, our· · · · · ● 1 ▸ Materials such as acrylonitrile, ethylbenzene, styrene, butadiene, bisphenol-A (“BPA”), MMA, UV-stabilizers, and halogenated flame retardant and others are used in the manufacturing of our products and have come under scrutiny due· · · · · ● 1 ▸ group Risks Related to Delisting of our Ordinary Shares· · · · · ● 1 ▸ group Risks Related to Our Ability to Continue as a Going Concern· · · · · ● 1 ▸ Unexpected payment obligations or unanticipated liabilities may create liquidity challenges and further challenge our ability to continue as a going concern.· · · · · ● 1 ▸ We have received notice of delisting procedures from the New York Stock Exchange (“NYSE”) and trading in our shares has been suspended, and trading may continue to be restricted with no trading market readily available.· · · · · ● 1 ▸ We have taken steps toward executing on our strategy to transform the Company to a specialty materials and sustainable solutions provider, including the PMMA Acquisition, the acquisition of Aristech Surfaces LLC, the sale of· · · · · ● 1 ▸ We may be unsuccessful in discussions with our financial stakeholders, including for the potential restructuring of our indebtedness or may be unable to obtain necessary waivers or amendments.· · · · · ● 1 ▸ Deterioration of our credit profile could limit our access to commercial credit.· · · ● ● ● 3 ▸ Volatility in the cost of raw materials, disruption in the supply of raw materials, may adversely affect our financial condition and results of operations or cause our financial results to differ materially from our forecasts.· · · ● ● ● 3 ▸ We could be subject to changes in the global and local tax regulatory environments in the jurisdictions in which we operate, which could adversely impact our results of operations.· · · ● ● ● 3 ▸ We face competitive risks related to excess supply capacity.· · · ● ● ● 3 ▸ Increased energy costs, shipping costs and supply constraints, including as a result of ongoing global conflicts, could adversely impact our results of operations.· · ● ● ● ● 4 rw ▸ group Risks Related to Litigation· · ● ● ● ● 4 ▸ We are party to certain legal proceedings, and may be subject to additional litigation, arbitration or legal proceedings in the future.· · ● ● ● ● 4 ▸ Any attempts to take us over will be subject to Irish Takeover Rules and subject to review by the Irish Takeover Panel.· ● ● ● ● ● 5 ▸ As an Irish public limited company, certain capital structure decisions regarding the Company will require the approval of shareholders, which may limit the Company’s flexibility to manage its capital structure.· ● ● ● ● ● 5 ▸ For more information regarding our indebtedness, see Item 7—Management’s Discussion and Analysis of Financial Conditions and Results of Operations— Capital Resources, Indebtedness and Liquidity.· ● ● ● ● ● 5 rw ▸ Irish law differs from the laws in effect in the U.S. and may afford less protection to holders of our securities than companies formed in the U.S.· ● ● ● ● ● 5 rw ▸ Provisions of our articles of association and Irish law could delay or prevent a takeover of us by a third party.· ● ● ● ● ● 5 ▸ group Risks Related to our Information Systems· ● ● ● ● ● 5 ▸ The suspension of a new enterprise resource planning (“ERP”) system implementation could cause disruption to our operations.· ● ● ● ● ● 5 rw ▸ We are subject to risks associated with our strategy to transform to a specialty materials and sustainable solutions provider.· ● ● ● ● ● 5 rw ▸ We may not be successful in the proposed divestiture of our interest in Americas Styrenics.· ● ● ● ● ● 5 rw ▸ As an Irish company, Trinseo is governed by the Irish Companies Acts, which differ in some material respects from laws generally applicable to U.S. corporations and shareholders, including, among others, differences relating to· · · · ● · 1 ▸ Since 2022 we have announced certain restructuring programs associated with our strategic transformation, adoption of cost reduction actions designed to improve profitability.· · · ● · · 1 ▸ Under the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”) and similar statutes outside the U.S., the current or former owner or operator of a property contaminated by hazardous substance· · · ● · · 1 ▸ If disruptions occur, alternative facilities with sufficient capacity or capabilities may not be available, may cost substantially more or may take a significant time to start production. Each of these scenarios could negatively affect our· · ● · ● · 2 ▸ In July 2022, we announced our decision to pause the sale of our styrenics businesses, which launched in January 2022. While the divestiture of our styrenics businesses remains a key part of our transformation strategy, we cannot· · ● · · · 1 ▸ Prior to the Dow Separation, we were operated by Dow, which has provided and continues to provide services under certain agreements that are important to our business. We are a party to (i) SAR SSAs,; (ii) supply and sales· · ● · · · 1 ▸ We have significant operations worldwide, including manufacturing facilities, R&D facilities, sales personnel and customer support operations. As of December 31, 2022, we operated, or others operated on our behalf, 39 manufacturing· · ● · · · 1 ▸ We incur currency translation risk whenever we enter into either a purchase or sale transaction using a currency other than the local currency of the transacting entity. From time to time, we enter into foreign exchange forward· · ● · · · 1 ▸ On May 3, 2021, we completed the PMMA Acquisition for a purchase price of $1,364.9 million, and on September 1, 2021, we completed the Aristech Surfaces Acquisition for a purchase price of $449.5 million (together, the “Acquisitions”).· ● · · · · 1 ▸ Data security breaches could compromise sensitive information related to our business or the private information of our employees, vendors, and customers, which could adversely affect our business and our reputation.● ● ● ● · · 4 ▸ Our business relies on intellectual property and other proprietary information and our failure to adequately protect or effectively enforce our rights could harm our competitive advantages with respect to the manufacturing of some of our products.● ● ● ● · · 4 ▸ Our migration away from services and technologies provided by Dow may cause significant disruptions to operations that could materially adversely affect our future results, business and financial condition.● · · · · · 1 ▸ group Risks Related to Our Indebtedness● ● ● ● ● · 5 ▸ The extent to which the COVID-19 pandemic will continue to impact our business, financial condition and results of operations could be material.● ● ● · · · 3 rw ▸ We are a Luxembourg company and, as a result, shareholders may have difficulty effecting service of process or litigation against us or our officers and directors.● · · · · · 1 ▸ We face risks concerning our recently announced proposed acquisition of assets from Arkema, S.A.● · · · · · 1 ▸ We may be unable to achieve cost savings and other benefits from our restructuring activities and cost reduction initiatives.● ● ● · ● ● 5 rw ▸ As a global business, we are exposed to local business risks in different countries, which could have a material adverse effect on our financial condition or results of operations.● ● ● ● ● ● 6 ▸ Compliance with extensive and evolving environmental, health and safety laws may require substantial expenditures.● ● ● ● ● ● 6 ▸ Conditions in the global economy and capital markets may adversely affect our results of operations, financial condition and cash flows.● ● ● ● ● ● 6 ▸ Fluctuations in currency exchange rates may significantly impact our results of operations and may significantly affect the comparability of our results between financial periods.● ● ● ● ● ● 6 ▸ Global trade conflicts and the imposition of tariffs may have a material adverse impact on our business and results of operations.● ● ● ● ● ● 6 rw ▸ If we are not able to continue the technological innovation and successful commercial introduction of new products, our customers may turn to other producers to meet their requirements.● ● ● ● ● ● 6 ▸ Our current and future level of indebtedness of our subsidiaries could adversely affect our financial condition.● ● ● ● ● ● 6 rw ▸ Our products may infringe the intellectual property rights of others, which may cause us to incur unexpected costs or prevent us from selling our products.● ● ● ● ● ● 6 ▸ group Risks Related to Acquisitions and Dispositions● ● ● ● ● ● 6 ▸ group Risks Related to Data Security● ● ● ● ● ● 6 ▸ group Risks Related to Our Intellectual Property● ● ● ● ● ● 6 ▸ group Risks Related to Our Operations● ● ● ● ● ● 6 ▸ group Risks Related to Our Ordinary Shares● ● ● ● ● ● 6 ▸ group Risks Related to Our Relationship with Dow● ● ● ● ● ● 6 ▸ group Risks Related to Regulation and Compliance● ● ● ● ● ● 6 rw ▸ The terms of our subsidiaries’ indebtedness may restrict our current and future operations, particularly our ability to respond to change or to take certain actions.● ● ● ● ● ● 6 ▸ We are subject to customs, international trade, export control, and antitrust laws that could require us to modify our current business practices and incur increased costs.● ● ● ● ● ● 6 ▸ We may be subject to losses due to liabilities or lawsuits related to contaminated land we own or operate or arising out of environmental damage or personal injuries associated with exposure to chemicals or the release of chemicals.● ● ● ● ● ● 6 ▸ We may engage in other future strategic disposition or acquisitions of certain assets and/or businesses that could affect our business, results of operations, financial condition and liquidity.● ● ● ● ● ● 6 rw 
