Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Avient Q3 2023 Earnings - November 2, 2023 Avient IR Presentation -- Goldman Sachs and Morgan Stanley Investor Meetings -- 2/17/2021 to 2/18/2021 PolyOne IR Presentation – Global High Yield & Leveraged Finance Conference – 2/24/2020 to 2/26/2020

Attachment 2 Tax adjustments(2) 2) 

AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) AU G U S T 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. GUIDANCE 12 15.4% 15.9% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE 13 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs. expectations: LATAM • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2023 SEQUENTIAL SALES BY REGION Q 2 2 0 2 3 v s . Q 1 2 0 2 3 -8% +6% -1% Flat 14 Total Avient -2.6% 2023 G U IDA N CE $128 $525 $0.56 $2.40 2023 GUIDANCE 16 $800 $3,280 Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 17 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ millions) 2023E Cash Flow from Operating Activities 320$ Less: CapEx (140) Free Cash Flow 180$ Adjusted EBITDA 525$ Net Debt / Adjusted EBITDA 3.0x SUSTAINABILITY AS A GROWTH DRIVER 18 LONG-TERM REVENUE GROWTH DRIVERS Revenue From Sustainable Solutions* 2016-2022 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** $1,175M *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue SUSTAINABILITY REPORT 2022 • Provides progress on 2030 goals • Reaffirms commitment to U.N.

Microsoft PowerPoint - Avient Q1 2021 Earnings - Final (For Print) AVIENT CORPORATION F I R S T Q U A R T E R 2 0 2 1 R E S U LT S (NYSE: AVNT) A P R I L 3 0 , 2 0 2 1 DISCLAIMER 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. Reduce Scope 1 & 2 greenhouse gas emissions by 35%. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 18 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Other 2 3 2 2 2 3 3 4 3 3 3 4 4 5 5 5 6 7 7 8 24 t (E xc l.

Boundaries of the reporting company GHG emissions covered by the verification: • Operational Control • Global Exclusions: • Fugitive refrigerants from units Energy: o Diesel Fuel Consumption: 2,868,323 kWh o Natural Gas Fuel Consumption: 178,696,287 kWh o Renewable Energy Consumed - Self Generated (solar): 681,059 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,385,048 kWh o Grid Electricity Consumed: 409,650,679 kWh o Renewable Energy Credits (REC) Purchased: 112,413,420 kWh o Renewable Electricity Consumed – Offsite: 138,415,253 kWh Page 2 Period covered by GHG emissions verification: • January 1, 2023 to December 31, 2023 Global Warming Potential (GWP) and emission factor data sets: • IPCC GWP: AR6 • USEPA Emission Factor Hub, released 2024 • USEPA eGRID, released 2024 • Final Rule (40 CFR 98) - Industrial Sector 2013 • DEFRA, released 2023 • IEA, released 2023 • European Residual Mix, released 2022 v2.0 GHG Reporting Protocols against which verification was conducted: • World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD) Greenhouse Gas Protocol, Corporate Accounting and Reporting Standard, Revised Edition (Scope 1 and 2) and the GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Standard • WRI/WBCSD Corporate Value Chain (Scope 3) Accounting and Reporting Standard Verification Protocols used to conduct the verification: • ISO 14064-3 Second Edition 2019-04: Greenhouse gases - Part 3: Specification with guidance for the verification and validation of greenhouse gas statements • Apex’s standard procedures and guidelines for external Assurance of Sustainability Reports and International Standard on Assurance Engagements (ISAE) 3000 Revised, Assurance Engagements Other than Audits or Reviews of Historical Financial Information (effective for assurance reports dated on or after Dec. 15, 2015), issued by the International Auditing and Assurance Standards Board. Page 3 Verification Opinion: Based on the verification process and procedures conducted to a limited assurance level of the GHG emissions statement shown above, Apex found no evidence that the GHG emissions statement: • is not materially correct and is not a fair representation of the GHG emissions data and information; and • has not been prepared in accordance with the WRI/WBCSD GHG Protocol Corporate Accounting and Reporting Standard (Scope 1 and 2), and WRI/WBCSD Greenhouse Gas Protocol Corporate Value Chain Accounting and Reporting Standard (Scope 3).

June 2, 2014