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. Our policy is to conduct business in a manner that complies with regulatory and other requirements while warranting the safety and health of our associates, customers, contractors, suppliers, and the communities in which we operate.

When using these ejection systems, differential thermal expansion of the mold may cause the lifter to jam. When using these ejection systems, differential thermal expansion of the mold may cause the lifter to jam. Overmolded parts will take longer to cool because the TPE is only cooled from one side as the plastic substrate acts as a thermal insulator.

https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/stat-tech-static-dissipative-electrically-conductive-formulations Slide 1: Semiconductor packaging OEM

AVIENT CORPORATION GROUP’S PUBLICATION OF UK TAX STRATEGY Introduction This document summarizes Avient Corporation and its worldwide affiliates’ (together “The Avient Group”) policy and approach to conducting United Kingdom (“UK”) tax affairs and managing tax risk. Transactions among the Avient Group are conducted on an arm’s-length basis and in accordance with UK tax laws.

Kedrowski Page 38 Operational Excellence • Operational Excellence is a never-ending quest for improvement in response to the voice of our customers and shareholders • It is all about strengthening our capabilities to deliver value flawlessly to our customers deliver value flawlessly to our customers • It challenges us to enhance our productivity, profitability, and efficiency in all phases of our business, from safety to quality to waste elimination to environmental stewardship Page 39 Lean Six Sigma Initiative • In 2009, Lean Six Sigma was launched to improve execution skills across all businesses, functions, and global regions • A company-wide diagnostic was conducted, resulting in identification of six conducted, resulting in identification of six strategic improvement platforms • Financial targets were estimated, resources identified and trained results delivered , Page 40 PolyOne OSHA Recordable Incidence Rate 4 5 6 5.1 Safety Performance *Rubber And Plastics Manufacturing Industry (2010 Bureau of Labor Statistics). 0 1 2 3 2005 2006 2007 2008 2009 2010 2011 Industry Average 1.4 1.3 1.1 1.1 0.85 0.65 0.57 Page 41 • Exemplary on-time delivery • Best-in-class working capital % of sales 81% 87% 88% 95% 93% 92% 94% 2005 2006 2007 2008 2009 2010 2011 On-Time Delivery* Lean Six Sigma Delivering Results • Approximately $200M in cash driven by working capital improvements 16.2% 14.4% 18.9% 11.7% 9.6% 9.6% 2006 2007 2008 2009 2010 2011 WC % of Sales 2005 2006 2007 2008 2009 2010 2011 *As measured to customer request date Page 42 40.0% Percent of Associates Trained in LSS World’s Best Start-up Program in 2009* World’s Best Business Process Excellence Program in 2012* Award-Winning Lean Six Sigma Program *Both awards received from International Quality and Productivity Center 16.5% 40.0% 2009 2011 Page 43 • Globally leverage strategic supplier management best practices • Implement world class demand management processes Critical Imperatives • Improve operational reliability and efficiencies • Optimize global freight management Drive 50 – 100 basis points of gross margin expansion per year Page 44 Page 45

Review and discuss with management and the internal and independent auditors compliance with the Company’s Codes of Business Conduct and Ethics. Advise the Board with respect to the Company’s policies and procedures regarding compliance with the Company’s Codes of Business Conduct and Ethics. 3. Discuss with management and the independent auditor any correspondence with regulators or governmental agencies and any legal complaints or published reports that raise material issues regarding the Company’s financial statements, accounting policies or compliance with the Company’s Codes of Business Conduct and Ethics. 5.

Our Code of Conduct establishes a clear set of ethical and behavioral standards for our business conduct. Annually, we conduct training for hourly associates. Suppliers are expected to comply with our Supplier Code of Conduct.

Our Code of Conduct establishes a clear set of ethical and behavioral standards for our business conduct. Annually, we conduct training for hourly associates. Suppliers are expected to comply with our Supplier Code of Conduct.

Testing was conducted to determine if formulations molded with the new additives would maintain sufficient antimicrobial functionality at the lower LDRs, and positive results were provided to the manufacturer. Finally, Avient’s willingness and ability to conduct and provide testing results saved the customer time and money.

Our Code of Conduct establishes a clear set of ethical and behavioral standards for our business conduct. Suppliers are expected to comply with our Supplier Code of Conduct. Suppliers are expected to comply with our Supplier Code of Conduct.