Santa Clara, Mexico 75. Toluca, Mexico 76. Mariana Islands Mexico Uruguay Cyprus Luxembourg Switzerland Israel Qatar Kenya Nicaragua Venezuela Czech Republic Malta Ukraine Japan Russia Libya Panama Denmark Moldova United Kingdom Jordan Saudi Arabia Madagascar Puerto Rico Estonia Netherlands Kazakhstan Singapore Mali Trinidad & Tobago Finland North Macedonia Kyrgyzstan South Korea Mauritius United States France Norway Kuwait Sri Lanka Morocco HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 15 • Sustainability performance recognized with a Gold Medal for EcoVadis, and with an A- Ranking for CDP Climate Change • Ranked as one of America’s Most Responsible Companies by Newsweek, 100 Most Sustainable Companies by Barron’s, and recognized on the USA Today’s America’s Climate Leaders List • Reaffirmed our commitment to the UN Global Compact and the Alliance to End Plastic Waste • Launched Avient’s Product Carbon Footprint (PCF) Mapping Service, 3rd party certified by TÜV Rhineland • Recognized with 4 sustainability innovation and design recognitions as finalists or award winners • Made strong progress in reducing company’s Scope 1 & 2 GHG emissions, reaching nearly 50% reduction in 2023 vs. 2019 Message from Avient’s VP of Sustainability Sustainability is core to Avient’s strategy.

Information is considered material if it could influence an investor’s decision to buy, sell or hold shares in the Company’s stock.

Santa Clara, Mexico 1. Toluca, Mexico 2. The following is a summary of sales and long-lived assets based on the geographic areas where the sales originated and where the assets are located: (In millions) 2021 2020 2019 Sales: United States $ 2,281.2 $ 1,619.7 $ 1,560.4 Canada 151.8 107.6 140.6 Mexico 348.2 236.2 261.2 South America 85.8 51.4 27.8 Europe 1,195.6 729.8 556.2 Asia 756.2 497.4 316.5 Total Sales $ 4,818.8 $ 3,242.1 $ 2,862.7 2021 2020 Total Assets: Color, Additives and Inks $ 2,965.2 $ 3,018.7 Specialty Engineered Materials 771.0 728.1 Distribution 384.9 244.9 Corporate and eliminations 876.1 878.8 Total $ 4,997.2 $ 4,870.5 2021 2020 Property, net: United States $ 276.2 $ 261.8 Canada 1.3 1.4 Mexico 8.3 8.9 South America 19.6 20.1 Europe 172.4 224.5 Asia 198.3 178.2 Total Long lived assets $ 676.1 $ 694.9 Note 16 — DERIVATIVES AND HEDGING We are exposed to market risks, such as changes in foreign currency exchange rates and interest rates.

Argentina Belgium Brazil Canada Chile China Colombia Czechia Finland France Germany Guatemala Hungary India Indonesia Ireland Italy Luxembourg Malaysia Mexico Netherlands New Zealand Pakistan Peru Poland Saudi Arabia Singapore South Africa Spain Sweden Taiwan, Greater China Thailand Turkey United Kingdom of Great Britain and Northern Ireland United States of America Viet Nam C0.4 (C0.4) Select the currency used for all financial information disclosed throughout your response. Country/Region Scope 2, location- based Scope 2, market- based Purchased and consumed electricity, heat, Purchased and consumed low-carbon electricity, heat, steam or Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 65 (metric tons CO2e) (metric tons CO2e) steam or cooling (MWh) cooling accounted for in Scope 2 market-based approach (MWh) Belgium 1,348 1,195 6,704 335 Brazil 444 444 4,448 0 Canada 334 334 2,530 0 China 21,484 21,484 34,853 0 Czechia 185 36 373 312 Finland 131 346 1,117 0 France 658 516 11,948 0 Germany 8,802 9,812 21,936 5,834 Hungary 644 725 2,537 0 India 5,362 5,362 7,135 0 Italy 6,204 1,063 20,146 17,864 Luxembourg 35 100 222 0 Mexico 1,711 1,711 3,750 0 Netherlands 250 332 598 0 Peru 36 36 182 0 Poland 2,499 2,857 3,523 0 Saudi Arabia 8,214 8,214 15,865 0 Singapore 1,161 1,161 2,984 0 Spain 6,992 9,236 26,952 0 Thailand 4,369 4,369 9,016 0 United Kingdom of Great Britain and Northern Ireland 350 531 1,527 0 United States of America 51,565 5,458 121,433 100,004 Turkey 3,317 3,317 7,119 0 Guatemala 252 252 660 0 Pakistan 1,218 1,218 3,101 0 Argentina 289 212 897 240 South Africa 830 830 927 0 Indonesia 1,111 1,111 1,451 0 Chile 46 46 114 0 Sweden 25 0 1,883 1,883 New Zealand 225 225 2,073 0 Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 66 Viet Nam 338 338 743 0 Colombia 375 375 2,338 0 Ireland 350 524 1,057 0 Malaysia 461 461 697 0 Taiwan, Greater China 3,348 3,348 5,991 0 C7.6 (C7.6) Indicate which gross global Scope 2 emissions breakdowns you are able to provide.

Santa Clara, Mexico 75. Toluca, Mexico 76. Mariana Islands Mexico Uruguay Cyprus Luxembourg Switzerland Israel Qatar Kenya Nicaragua Venezuela Czech Republic Malta Ukraine Japan Russia Libya Panama Denmark Moldova United Kingdom Jordan Saudi Arabia Madagascar Puerto Rico Estonia Netherlands Kazakhstan Singapore Mali Trinidad & Tobago Finland North Macedonia Kyrgyzstan South Korea Mauritius United States France Norway Kuwait Sri Lanka Morocco HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 15 • Sustainability performance recognized with a Gold Medal for EcoVadis, and with an A- Ranking for CDP Climate Change • Ranked as one of America’s Most Responsible Companies by Newsweek, 100 Most Sustainable Companies by Barron’s, and recognized on the USA Today’s America’s Climate Leaders List • Reaffirmed our commitment to the UN Global Compact and the Alliance to End Plastic Waste • Launched Avient’s Product Carbon Footprint (PCF) Mapping Service, 3rd party certified by TÜV Rhineland • Recognized with 4 sustainability innovation and design recognitions as finalists or award winners • Made strong progress in reducing company’s Scope 1 & 2 GHG emissions, reaching nearly 50% reduction in 2023 vs. 2019 Message from Avient’s VP of Sustainability Sustainability is core to Avient’s strategy.

Santa Clara, Mexico Shanghai, China (b) 25. Toluca, Mexico Stanley, North Carolina (b) 26. Financial information by reportable segment is as follows: (In millions) Year Ended December 31, 2023 Total Sales Operating Income Depreciation and Amortization Capital Expenditures Color, Additives and Inks $ 2,007.4 $ 259.9 $ 98.3 $ 21.4 Specialty Engineered Materials 1,138.2 142.5 81.5 50.1 Corporate (2.8) (205.6) 9.0 47.9 Total from continuing operations $ 3,142.8 $ 196.8 $ 188.8 $ 119.4 Year Ended December 31, 2022 Total Sales Operating Income Depreciation and Amortization Capital Expenditures Color, Additives and Inks $ 2,355.0 $ 301.0 $ 101.3 $ 41.3 Specialty Engineered Materials 1,044.4 140.1 48.7 37.4 Corporate (2.5) (197.8) 12.5 26.4 Total from continuing operations $ 3,396.9 $ 243.3 $ 162.5 $ 105.1 Year Ended December 31, 2021 Total Sales Operating Income Depreciation and Amortization Capital Expenditures Color, Additives and Inks $ 2,401.6 $ 303.1 $ 105.7 $ 40.5 Specialty Engineered Materials 911.6 125.5 31.7 26.4 Corporate 2.3 (148.9) 7.7 32.9 Total from continuing operations $ 3,315.5 $ 279.7 $ 145.1 $ 99.8 61 AVIENT CORPORATION Our sales are primarily to customers in the United States, Canada, Mexico, Europe, South America and Asia, and the majority of our assets are located in these same geographic areas.

• Kimberly-Clark de Mexico ELECTION OF BOARD OF DIRECTORS PROXY STATEMENT 2025 | Annual Meeting of Shareholders 11 Richard H. Our Insider Trading Policy prohibits Directors, officers and certain other employees of Avient from engaging in any speculative transactions involving Avient securities, including: (1) buying or selling options, warrants, puts or calls or similar instruments; (2) short sales; or (3) margin purchases of Avient securities.

• Kimberly-Clark de Mexico Richard H. Avientʼs Insider Trading Policy prohibits Directors, officers and certain other employees of Avient from engaging in hedging or other speculative transactions with respect to our securities, including buying or selling puts or calls, short sales, or margin purchases of our securities.

Santa Clara, Mexico 80. Toluca, Mexico 81. In addition, PRIDE expanded to Latin America, with presence in Mexico and Brazil.

Santa Clara, Mexico 82. Toluca, Mexico 83. Ethiopia Tanzania New Zealand Honduras Ecuador Bulgaria Italy Slovakia Greater China Nepal Uzbekistan Gabon Tunisia Jamaica Paraguay Croatia Kosovo Slovenia India Oman Vietnam Ghana Uganda Mexico Peru Cyprus Latvia Spain Indonesia Pakistan Yemen Guinea Zambia Panama Suriname Czech Republic Lithuania Sweden Iraq Philippines Ivory Coast Zimbabwe Puerto Rico Uruguay Denmark Luxembourg Switzerland Israel Qatar Kenya Trinidad & Tobago Venezuela Estonia Malta Ukraine Japan Russia Libya United States Finland Netherlands United Kingdom Jordan Saudi Arabia Madagascar France North Macedonia Kazakhstan Singapore Mali HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2020 13 Sustainability remains integral to achieving Avient’s vision, mission, responsibility and performance.