Microsoft Word - AvientRY 2021 CDP Verification Opinion Declaration_07-26-22r WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. 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).

KRISTEN GAJEWSKI Chief Human Resources Officer Kristen Gajewski is Senior Vice President, Chief Human Resources Officer at Avient Corporation, a premier provider of specialized and sustainable material solutions and services. Gajewski led Avient’s learning and organizational development programs, talent management and acquisition, as well as working as the HR Director for all global Corporate Functions. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

PEDERSON Senior Vice President, President of Specialty Engineered Materials Chris Pederson is senior vice president, president, Specialty Engineered Materials, for Avient Corporation, a premier provider of specialized and sustainable material solutions and services. Just prior to joining Avient in 2018, he was vice president of Strategy at Hexcel Corporation, responsible for the company’s M&A strategy and execution. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

Phil Clark is Senior Vice President, Chief Technology Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. He previously worked at 3M for 17 years, leading R&D efforts in both corporate innovation and business segment roles, including an international assignment based in South Korea. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

Phil Clark is Senior Vice President, Chief Technology Officer, for Avient Corporation, the world’s premier provider of specialized and sustainable material solutions and services. He previously worked at 3M for 17 years, leading R&D efforts in both corporate innovation and business segment roles, including an international assignment based in South Korea. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com https://www.avient.com/

KRISTEN GAJEWSKI Chief Human Resources Officer Kristen Gajewski is Senior Vice President, Chief Human Resources Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Gajewski led Avient’s learning and organizational development programs, talent management and acquisition, as well as working as the HR Director for all global Corporate Functions. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

GIUSEPPE DI SALVO Vice President, Treasurer and Investor Relations Giuseppe “Joe” Di Salvo is Vice President, Treasurer and Investor Relations at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. He was then promoted to vice President, Corporate Controller. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

JOHN MIDEA Senior Vice President, Global Operations and Process Improvement John Midea is Senior Vice President, Global Operations and Process Improvement at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. He spent 12 years at Valspar Corporation with increasing roles of responsibility, including Vice President, where he was accountable for the North American segment of its liquid, powder, electrocoat and after market specialty chemical businesses. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

AVIENT RESPONSIBLE CARE POLICY Avient Corporation conducts its operations in a manner that is protective of the environment, and the health, safety and security of associates, customers, and all our stakeholders, including the communities in which we operate. Ashish Khandpur President and CEO December 18, 2023 ENVIRONMENTAL POLICY Avient Corporation conducts its operations in an environmentally responsible manner that is protective of the communities in which we operate. Ashish Khandpur President and CEO December 18, 2023 SAFETY & HEALTH POLICY Avient Corporation believes that safety and health are the highest corporate priority.

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