In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission.

In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the

In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission.

In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission.

Duties and Responsibilities The Committee will: Assessment Process • Periodically review the results of formal assessments by management of the environmental liabilities for which the Company has known or probable environmental exposure and the adequacy of the Company’s financial reserves for environmental liabilities; • Semi-annually review the status of health and safety performance of the Company; • Semi-annually review the status of the Company’s product stewardship programs and performance; • Periodically review the Company’s staffing for its environmental, health and safety assessments and compliance; and 2 • Periodically review new environmental, physical security, health and safety laws and regulations applicable to the Company’s operations and issues or significant developments arising from pending regulatory and citizen group activities. Compliance Programs • At least annually review the programs and procedures established by the Company that monitor compliance with the Company’s policies, standards and practices, and laws and regulations with respect to safety, health, environmental, physical security and product stewardship, including providing oversight of the systems that are in place to monitor and mitigate the Company’s carbon footprint and physical risks associated with climate change; • Periodically review with management the significant safety, health, environmental, physical security, and product stewardship risks or exposures faced by the Company, if any, and steps taken by management to minimize such risks and exposures to the Company and its constituencies; • At least annually review the status of the Company’s environmental and safety audit process, assessing compliance with Company policies, standards, practices, laws and regulations; and • Periodically review claims, demands, administrative orders and legal proceedings against the Company regarding safety, health, environmental, physical security and product stewardship matters. The Committee will meet at least two times a year and at such other times as may be requested by its Chair. 3 • The Committee will annually review its charter and recommend any changes to the Governance and Corporate Responsibility Committee.

Investor Day FERMIUM RESEARCH MARKETING TRIP D E C E M B E R 1 6 , 2 0 1 9 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Disruptions or inefficiencies in our supply chain, logistics, or operations; • Changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Demand for our products and services; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts and any recessionary conditions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2023 under Item 1A, “Risk Factors.” You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

To ensure consistent communication and compliance, all associates globally are expected to complete our Code of Conduct training on an annual basis on various aspects of our Code, including but not limited to human rights. Our Code of Conduct is available in over 20 languages and can be found at: https://www.avient.com/company/policies-and-governance/code-conduct Our Ethics Hotline is available 24 hours a day, 7 days a week, by phone or web, for our associates and the community to report any concerns or make inquiries. Those making reports can remain anonymous.

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