Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Management believes this provides comparability of the performance of the combined businesses. Management believes this provides comparability of the performance of the combined businesses.

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. Management believes this provides comparability of the performance of the combined businesses.

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. EBITDA and Adjusted EBITDA are non-GAAP financial measures that management uses in evaluating operating performance. Management believes this provides comparability of the performance of the combined businesses.

Color Management: ColorMatrix Select

We provide oversight and guidance with regard to how the Board and management evaluate and integrate these responsibilities into Avient’s business conduct.

Geraldine Ng, Senior Manager, Ethics & Compliance

While water management is a critical and highly-influential topic in some industrial sectors, Avient’s operations are not water intensive.

They are based on management’s expectations that involve 2023, business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Use of non-GAAP measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. All Rights Reserved 2024 45 Engineered materials for healthcare CATALYZE THE CORE • Global adoption of remote patient continuous glucose monitoring, respiratory remedies, and biopharmaceutical processes • Customers seek global suppliers, with required quality systems, that offer – Barrier properties to manage chemical ingress – Elasticity for conformance, patient comfort and sealing – Purity to manage extractables – Color / UV stability to differentiate products and extend life $6B ADDRESSABLE MARKET A V I E N T T E C H N O L O G I E S , S O L U T I O N S Continuous glucose monitors Respiratory care Biopharma tubing Catheters Copyright © .

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. 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; including recessionary conditions • The current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows • Changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • 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; • An inability to raise or sustain prices for products or services; • 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; • The ability to obtain required regulatory approvals and otherwise consummate the proposed sales of the Distribution business; and • 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 and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Management believes this provides comparability of the performance of the combined businesses.

Belgium Branch Vesaliusstraat 31 - 1000 Brussels E: ol.brussel@xerius.be T: 02 609 62 30 Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 4Extract from Page 2from Functions Last Name, first Name Registered entity Start Date End DateReason for termination Representative (branch) Roels Jean-Marie 31/08/2018 Last Name, first Name Registered entity Start Date End DateReason for terminationEntrepreneurial skills - Ambulant commerce - Fairground operator 31/08/2018Non SME dispensation (Exemption) Characteristic Phase Duration Start Date End DateReason for termination Employer National Social Security Office Characteristic/authorisation acquired 01/11/2018undetermined Subject to VAT Characteristic/authorisation acquired 31/08/2018undetermined Enterprise subject to registration Characteristic/authorisation acquired 01/11/2018undetermined General assembly End Date Financial Year Start Date Exceptional Year Start Date End DateEnd Date Exceptional Year Financial Details Share capital (Capital Stock) Currency Duration of the entity 12,000.00 EUR June 31/12 09/08/2018 Use Bank account number Start Date End DateBank account number Bank Accounts BIC For all purposes 685 8477013 57 31/08/2018BE09685847701357BOFABE3X External Identifiers NSSO number 143954886 Trade register number 19 0097620 There is no data available for the following sections: Authorisations, Working partners :, Ex-officio striking off, Links between registered entities List of branches Branch - Center of operations General Information Start date entity End date entity 09/08/2018 Address Start Date End Date Address Rue Melville Wilson 2 09/08/2018 5330 Assesse België Company Number 0700.822.426 Company Name Avient S.à r.l., Belgium Branch Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 4Extract from Page 3from Establishment unit number Name Situation on 2.278.618.585 Avient S.à r.l., Belgium Branch 26/11/2021 Name Type Language Name Start Date End Date Trade name French Avient S.à r.l., Belgium Branch 08/11/2021 Address Start Date End Date Address Rue Melville Wilson 2 31/08/2018 5330 Assesse België Additional address info Contact details Type Contact detail Characteristic Start Date End Date Website www.polyone.com Declarative 31/08/2018 General Information 31/08/2018Start date establishment unit End date establishment unit Start date link between entities End date link between entities 31/08/2018 Activities Type Start Date End DateVersionNACEBEL Activities Wholesale trade of industrial chemical products Main activity 31/08/2018200846751 Wholesale trade of industrial chemicals: aniline, printing ink, essential oils, industrial gases, chemical glues, dyes, synthetic resin, methanol, paraffin, etc.