Shanghai, China (c) 56. c) There are two manufacturing plants located in Shanghai, China. About Us—Revenue by Geography and End Market Page 14 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 100 Recommended Disclosure Avient Disclosures Describe the board’s oversight of climate-related risks and opportunities Message from the Governance and Corporate Responsibility Committee Page 4 Planet—Climate Change Page 59 Avient 2023 Proxy Statement Pages 47–49, 51 2022 CDP Climate Change Response—C1.1b Describe management’s role in assessing and managing climate-related risks and opportunities Message from Avient's VP of Sustainability Page 17 People—Management Approach EH&S Page 19 Planet—Climate Change Page 59 2022 CDP Climate Change Response—C1.2, C1.2a Describe the climate-related risks and opportunities the organization has identified over the short, medium, and long term 2022 CDP Climate Change Response—C2.1, C2.2C, C2.3a, C2.4a Describe the impact of climate-related risks and opportunities on the organization’s businesses, strategy, and financial planning 2022 CDP Climate Change Response—C2.5, C2.6 Describe the resilience of the organization’s strategy, taking into consideration different climate-related scenarios, including a 2°C or lower scenario 2022 CDP Climate Change Response—C3.1a, C3.1g Risk Management Describe the organization’s processes for identifying and assessing climate-related risks Planet—Climate Change Page 59 2022 CDP Climate Change Response—C2.2, C2.2a, C2.2b Describe the organization’s processes for managing climate-related risks Planet—Climate Change Page 59 2022 Climate Change Response—C2.2, C2.2d Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management 2022 CDP Climate Change Response—C2.2, C3.1c Metrics & Targets Disclose the metrics used by the organization to assess climate-related risks and opportunities in line with its strategy and risk management process 2022 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 greenhouse gas emissions and the related risks Metrics—People and Planet Data and Metrics Pages 84–85 2022 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Describe the targets used by the organization to manage climate-related risks and opportunities and performance against targets Metrics—People and Planet Data and Metrics Pages 84–85 2030 Sustainability Goals Page 7 2022 CDP Climate Change Response—C4 Task Force on Climate-related Financial Disclosures (TCFD) Index HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 101 TCFD Climate Scenario Risks & Opportunities Matrix *For full disclosure of the results as aligned with TCFD guidance, refer to CDP Climate Change Report.

Shanghai, China (c) 54. c) There are two manufacturing plants located in Shanghai, China. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 91 Task Force on Climate-related Financial Disclosures (TCFD) Index Recommended Disclosure Avient Disclosures Describe the board’s oversight of climate-related risks and opportunities Message from the Governance and Corporate Responsibility Committee Page 4 Planet—Climate Change Page 53 Avient 2023 Proxy Statement Pages 30–31, 34 CDP Climate Change Response—C1.1b Describe management’s role in assessing and managing climate-related risks and opportunities Message from Avient's VP of Sustainability Page 16 People—Environmental, Health & Safety Page 18 Planet—Climate Change Page 53 CDP Climate Change Response—C1.2, C1.2a Describe the climate-related risks and opportunities the organization has identified over the short, medium, and long term CDP Climate Change Response—C2.1, C2.2C, C2.3a, C2.4a Describe the impact of climate-related risks and opportunities on the organization’s businesses, strategy, and financial planning CDP Climate Change Response—C2.5, C2.6 Describe the resilience of the organization’s strategy, taking into consideration different climate-related scenarios, including a 2°C or lower scenario CDP Climate Change Response—C3.1a, C3.1g Risk Management Describe the organization’s processes for identifying and assessing climate-related risks Planet—Climate Change Page 53 CDP Climate Change Response—C2.2, C2.2a, C2.2b Describe the organization’s processes for managing climate-related risks Planet—Climate Change Page 53 CDP Climate Change Response—C2.2, C2.2d Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management CDP Climate Change Response—C2.2, C3.1c Metrics & Targets Disclose the metrics used by the organization to assess climate-related risks and opportunities in line with its strategy and risk management process CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 greenhouse gas emissions and the related risks Metrics—Planet Data and Metrics Page 77 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Describe the targets used by the organization to manage climate-related risks and opportunities and performance against targets 2030 Sustainability Goals Page 7 CDP Climate Change Response—C4 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 92 TCFD Climate Scenario Risks & Opportunities Matrix *For full disclosure of the results as aligned with TCFD guidance, refer to CDP Climate Change Report.

Shanghai, China (c) 54. c) There are two manufacturing plants located in Shanghai, China. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 91 Task Force on Climate-related Financial Disclosures (TCFD) Index Recommended Disclosure Avient Disclosures Describe the board’s oversight of climate-related risks and opportunities Message from the Governance and Corporate Responsibility Committee Page 4 Planet—Climate Change Page 53 Avient 2023 Proxy Statement Pages 30–31, 34 CDP Climate Change Response—C1.1b Describe management’s role in assessing and managing climate-related risks and opportunities Message from Avient's VP of Sustainability Page 16 People—Environmental, Health & Safety Page 18 Planet—Climate Change Page 53 CDP Climate Change Response—C1.2, C1.2a Describe the climate-related risks and opportunities the organization has identified over the short, medium, and long term CDP Climate Change Response—C2.1, C2.2C, C2.3a, C2.4a Describe the impact of climate-related risks and opportunities on the organization’s businesses, strategy, and financial planning CDP Climate Change Response—C2.5, C2.6 Describe the resilience of the organization’s strategy, taking into consideration different climate-related scenarios, including a 2°C or lower scenario CDP Climate Change Response—C3.1a, C3.1g Risk Management Describe the organization’s processes for identifying and assessing climate-related risks Planet—Climate Change Page 53 CDP Climate Change Response—C2.2, C2.2a, C2.2b Describe the organization’s processes for managing climate-related risks Planet—Climate Change Page 53 CDP Climate Change Response—C2.2, C2.2d Describe how processes for identifying, assessing and managing climate-related risks are integrated into the organization’s overall risk management CDP Climate Change Response—C2.2, C3.1c Metrics & Targets Disclose the metrics used by the organization to assess climate-related risks and opportunities in line with its strategy and risk management process CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 greenhouse gas emissions and the related risks Metrics—Planet Data and Metrics Page 77 CDP Climate Change Response—C6.1, C6.2, C6.3, C6.5 Describe the targets used by the organization to manage climate-related risks and opportunities and performance against targets 2030 Sustainability Goals Page 7 CDP Climate Change Response—C4 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 92 TCFD Climate Scenario Risks & Opportunities Matrix *For full disclosure of the results as aligned with TCFD guidance, refer to CDP Climate Change Report.

Saluran langsung Etika https://www.Avient.com/company/policies-and-governance/ethics-hotline Nomor Telepon Saluran Langsung Etika: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline Amerika Utara Kantor Pusat Global Avon Lake, Amerika Serikat 33587 Walker Road Avon Lake, OH, Amerika Serikat 44012 Nomor Bebas Pulsa: +1 866 765 9663 Nomor Telepon: +1 440 930 1000 Faks: +1 440 930 3064 Asia Pasifik Kantor Pusat Regional Shanghai, Tiongkok 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, Tiongkok Telepon: +86 (0) 21 6028 4888 Faks: +86 (0) 21 6028 4999 Amerika Selatan Kantor Pusat Regional Sao Paulo, Brasil Av.

+1-866-765-9663 Телефон: +1-440-930-1000 Факс: +1-440 930 3064 Азиатско-Тихоокеанский регион Региональный офис в Шанхае, Китай 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, China Телефон: +86 (0) 21 6028 4888 Факс: +86 (0) 21 6028 4999 Южная Америка Региональный офис в Сан-Паулу, Бразилия Av.

Línea directa de ética: https://www.Avient.com/company/policies-and-governance/ethics-hotline Número de teléfono de la línea directa de ética: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline Norteamérica Sede central global de Avon Lake, Estados Unidos 33587 Walker Road Avon Lake, OH, Estados Unidos 44012 Número gratuito: +1 866 765 9663 Teléfono: +1 440 930 1000 Fax: +1 440 930 3064 Asia Pacífico Sede central regional de Shanghái, China 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghái, China Teléfono: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Sudamérica Sede central regional de San Pablo, Brasil Av.

Línea Directa de Ética: https://www.Avient.com/company/policies-and-governance/ethics-hotline Número de teléfono de la Línea Directa de Ética: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline Norteamérica Sede mundial de Avon Lake, Estados Unidos 33587 Walker Road Avon Lake, OH, Estados Unidos 44012 Llamada gratuita: +1 866 765 9663 Teléfono: +1 440 930 1000 Fax: +1 440 930 3064 Asia Pacífico Sede regional de Shanghái, China 2F, Bloque C 200 Jinsu Road Pudong, 201206 Shanghái, China Teléfono: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Sudamérica Sede regional en São Paulo, Brasil Av.

Etik-hotline: https://www.Avient.com/company/policies-and-governance/ethics-hotline Telefonnummer till etik-hotline: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline Nordamerika Globalt huvudkontor Avon Lake, USA 33587 Walker Road Avon Lake, Ohio, USA 44012 Gratis inom USA: +1 866 765 9663 Telefonnummer: +1 440 930 1000 Fax: +440 930 3064 Asien och Stillahavsområdet Regionalt huvudkontor Shanghai, Kina 2F, Block C 200 Jush Road Pudong, 201206 Shanghai, Kina Telefon: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Sydamerika Regionalt huvudkontor Sao Paulo, Brasilien Av.

Horká linka pro etiku: https://www.Avient.com/company/policies-and-governance/ethics-hotline Telefonní číslo na horkou linku pro etiku: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline Severní Amerika Globální centrála Avon Lake, Spojené státy 33587 Walker Road Avon Lake, OH, Spojené státy 44012 Bezplatná linka: +1-866-765-9663 Telefon: +1-440-930-1000 Fax: +440 930 3064 Asie a Tichomoří Regionální centrála Šanghaj, Čína 2F, Blok C 200 Jinsu Road Pudong, 201206 Šanghaj, Čína Telefonní číslo: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Jižní Amerika Regionální centrála Sao Paulo, Brazílie Av.

Ethik-Hotline: https://www.Avient.com/company/policies-and-governance/ethics-hotline Telefonnummer der Ethikhotline: 1-877-228-5410 https://www.Avient.com/company/policies-and-governance/ethics-hotline Nordamerika Globale Hauptverwaltung Avon Lake, USA 33587 Walker Road Avon Lake, OH, USA 44012 Gebührenfrei: 1-866-765-9663 Telefon: 1-440-930-1000 Fax: +440 930 3064 Asien-Pazifik Regionale Hauptverwaltung Shanghai, China 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, China Telefon: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Südamerika Regionale Hauptverwaltung São Paulo, Brasilien Av.