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TRANS NAT PP GREEN GLOW 2 TRANS BLUE PP BLUE GLOW 2 GLO GREEN 2

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BLUE PMS7462C REV 2 PEAK TEA PLA BLUE WATER MB 2 WHITE STYRENE LM 2

Microsoft PowerPoint - AVNT Q4 2022 Earnings Presentation AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 2 R E S U L T S A N D 2 0 2 3 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A RY 1 5 , 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. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets.2 Q4 2022 VS. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 29 EV / 2023E EBITDA Historic Multiple 6.5 8.3 10.0 15.6 13.9 13.7 12.8 9.5 18.0 17.5 12.3 10.2 9.7 8.8 8.4 5.9 (2 01 1) (2 01 8) SEGMENT DATA U.S. & Canada 40% 37% 18% Latin America 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE (1) Total company adjusted EBITDA of $592M includes corporate costs $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M 31 C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION US & Canada 34% 38% Latin America END MARKET REGION 32 34% 21% Building & 1% Energy 2% S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET US & Canada 52% 35% REGION 33 19% 8%Industrial 16% Building & 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 34 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Boundaries of the reporting company GHG emissions covered by the verification:  Operational Control  Global Exclusions:  Fugitive refrigerants Types of GHGs: CO2, N2O, CH4 GHG Emissions Statement:  Scope 1: 18,242 metric tons of CO2 equivalent  Scope 2 (Location-Based): 134,244 metric tons of CO2 equivalent  Scope 2 (Market-Based): 85,892 metric tons of CO2 equivalent  Scope 3: o Category 3 – Fuel and energy-related activities (electricity transportation and distribution losses only): 8,777 metric tons of CO2 equivalent Data and information supporting the Scope 1 and Scope 2 GHG emissions assertion were in most cases historical in nature and in some cases were estimated. Energy: o Diesel Fuel Consumption: 7,268,012 kWh o Natural Gas Fuel Consumption: 90,498,342 kWh o Renewable Energy - Self Generated (solar): 252,779 kWh o Renewable Energy - Self Generated (Wind): 2,399,531 kWh o Electric Power: 339,815,274 kWh Page 2 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com o Renewable Energy Credit (REC): 121,411,062 kWh o Renewable Power – Offsite: 27,119,749 kWh Period covered by GHG emissions verification:  January 1, 2021 to December 31, 2021 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. 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).

Boundaries of the reporting company GHG emissions covered by the verification:  Operational Control  Global Exclusions:  Fugitive refrigerants  Mobile Combustion Types of GHGs: CO2, N2O, CH4 GHG Emissions Statement:  Scope 1: 34,627 metric tons of CO2 equivalent  Scope 2 (Location-Based): 167,333 metric tons of CO2 equivalent  Scope 2 (Market-Based): 99,465 metric tons of CO2 equivalent  Scope 3: o Category 3 – Fuel and energy-related activities: 62,049 metric tons of CO2 equivalent Data and information supporting the Scope 1 and Scope 2 GHG emissions assertion were in most cases historical in nature and in some cases were estimated. Energy: o Diesel Fuel Consumption: 4,754,671 kWh o Natural Gas Fuel Consumption: 184,415,668 kWh o Renewable Energy Consumed - Self Generated (solar): 260,378 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,554,186 kWh o Grid Electricity Consumed: 436,400,546 kWh Page 2 WATER RESOURCES • ENVIRONMENTAL SERVICES • INDUSTRIAL HYGIENE  •  SAFETY  •  SUSTAINABILITY  Apex Companies, LLC • (800) 733‐2739 • www.apexcos.com  o Renewable Energy Credits (REC) Purchased: 100,691,000 kWh o Renewable Electricity Consumed – Offsite: 128,982,866 kWh Period covered by GHG emissions verification:  January 1, 2022 to December 31, 2022 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. 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).

Abernathy (2) (2) (2) Richard H. 2) Mr. Global CARE Insurance (Critical Care Air Rescue and Evacuation), which provides supplemental medical services and medical transportation related to business travel, is also provided to all Named Executive Officers. 2017 Grants of Plan-Based Awards 86,331 (1) 1,151,077 (1) 2,302,154 (1) - 142,500 (2) 1,140,000 (2) 2,280,000 (2) - 2/15/2017 39,400 118,200 (5) 1,419,188 2/15/2017 39,050 (8) 1,331,605 27,769 (1) 370,250 (1) 740,500 (1) - 29,750 (2) 238,000 (2) 476,000 (2) - 2/15/2017 8,217 24,650 (5) 295,964 2/15/2017 8,150 (8) 277,915 15,437 (1) 205,827 (1) 411,654 (1) - 14,000 (2) 112,000 (2) 224,000 (2) - 2/15/2017 3,867 11,600 (5) 139,277 2/15/2017 3,850 (8) 131,285 7/3/2017 10,000 (9) 384,100 16,849 (1) 224,654 (1) 449,308 (1) - 16,000 (2) 128,000 (2) 256,000 (2) - 2/15/2017 4,417 13,250 (5) 159,088 2/15/2017 4,400 (8) 150,040 17,420 (1) 232,269 (1) 464,538 (1) - 16,625 (2) 133,000 (2) 266,000 (2) - 2/15/2017 4,584 13,750 (5) 165,092 2/15/2017 4,550 (8) 155,155 9,329 (1) 124,385 (1) 248,770 (1) - 15,000 (2) 120,000 (2) 240,000 (2) - 15,000 (3) 120,000 (3) 240,000 (3) - 14,500 (3) 116,000 (3) 232,000 (3) - 14,500 (3) 116,000 (3) 232,000 (3) - 2/15/2017 4,150 12,450 (5) 149,483 7/18/2017 4,150 12,450 (6) 181,148 7/18/2017 4,300 12,900 (6) 163,271 7/18/2017 3,300 9,900 (6) 118,041 2/15/2017 4,150 (8) 141,515 7/18/2017 4,182 (10) 161,383 7/18/2017 4,350 (10) 167,867 7/18/2017 3,723 (10) 143,671 9,818 (1) 130,900 (1) 261,800 (1) - 18,000 (2) 144,000 (2) 288,000 (2) - 15,518 (4) 124,141 (4) 248,282 (4) - 8,921 (4) 71,366 (4) 142,732 (4) - 3,199 (4) 25,595 (4) 51,190 (4) - 2/15/2017 4,967 14,900 (5) 178,899 5/31/2017 4,967 14,900 (7) 201,051 5/31/2017 1,737 4,560 (7) 74,765 5/31/2017 3,734 11,200 (7) 131,600 5/31/2017 3,466 3,466 (7) 41,696 2/15/2017 4,950 (8) 168,795 5/31/2017 4,473 (11) 167,022 5/31/2017 2,826 (11) 105,523 5/31/2017 1,180 (11) 44,061 40.19 M.A.

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