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Sustainability Report Read our latest Sustainability Report. Aug 27, 2025 Avient Introduces Groundbreaking Wide-Format Unidirectional Composite Tape and New Composite Ut Aug 08, 2025 Avient’s 2024 Sustainability Report: Significant Progress and New Commitments Aug 05, 2025 Avient Expands High-Performance Recycled-Content Polycarbonate Solutions for Electrical & Elect Jul 21, 2025 Dyneema® Launches New Fiber for Protective Gloves, Initiating Paradigm Shift in Light-Weight, C Jul 14, 2025 Dyneema® Changes the Game of Fabric Engineering Yet Again with New Composite Technology

PolyOne Corporation Page 1 PolyOne Investor Presentation Credit Suisse Boston Basic Materials Conference June 2015 PolyOne Corporation Page 2 Forward-Looking Statements  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. The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations.

PolyOne Corporation Page 1 PolyOne Investor Presentation RW Baird 2015 Industrial Conference November 2015 PolyOne Corporation Page 2 Forward-Looking Statements  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. The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations.

Pro Forma Financial Information Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

September 21, 2020 In celebration of World Cleanup Day 2020, Avient is supporting the All Together Global Cleanup, a global initiative to remove litter from the environment.  As of August 2020, the Alliance has nearly 50 member companies and supporters representing global companies and organizations across the plastic value chain.

We are proud to yet again earn a perfect score of 100/100 on the Corporate Equality Index. This score earns us the distinction as a Best Place to Work for LGBTQ Equality. Environmental data covers all sites owned or operated by Avient in the reporting period. 102–47 List of material topics About Us People Products Planet Performance Avient 2020 Annual Report—Form 10-K 102–48 Restatements of information 2019 and 2020 data includes full calendar year data for Clariant Masterbatch acquired sites unless otherwise noted at the metric level. 102–49 Changes in reporting PolyOne acquired Clariant MasterBatch on July 1, 2020 and combined to create the current company, Avient. 2019 and 2020 data includes full calendar year data for Clariant Masterbatch acquired sites unless otherwise noted at the metric level. 102–50 Reporting period January 1, 2020 through December 31, 2020 102–51 Date of most recent report This is Avient's 3rd sustainability report. 102–52 Reporting cycle At minimum, biennial 102–53 Contact point for questions regarding the report https://www.avient.com/contact-us-now 102–54 Claims of reporting in accordance with the GRI standards This report has been prepared in accordance with the GRI Standards: Core Option.

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. Big or small, we earn customers, and we keep them. In the near term we expect substantial earnings and cash flow gains as we emerge from the COVID-19 pandemic.

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. Big or small, we earn customers, and we keep them. In the near term we expect substantial earnings and cash flow gains as we emerge from the COVID-19 pandemic.

Color & Insights Report: January 2022 Consumer Electronics November 2020