ECert.pdf Page 1 of 2 Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof. Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. ABS Quality Evaluations This is to certify that the Quality Management System of: PolyOne Corporation PolyOne 1260 Carden Farm Drive Clinton, TN 37716 IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 38223 Effective Date: 03 July 2018 Expiration Date: 02 July 2021 Issue Date: 03 July 2018 IATF No: 0313794 Alex Weisselberg, President DESIGN AND COMPOUNDING OF THERMOPLASTIC PRODUCTS (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations PolyOne Corporation IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

RAISE is Avient’s newest ERG, launched in 2023. Connecting associates both locally and globally will create an opportunity for us to support each other as individuals as well as drive improvements to the employee experience. Family-friendly events Avient Support.

In 2023, we were proud to receive Great Place to Work® certification for the fifth year in a row, thanks to the candid feedback shared by our associates through our annual employee engagement survey. Moreover, 77% of our associates reported having a positive experience at Avient. By fostering open communication, building trust, and taking meaningful action, we will advance our cultural journey to become an even better place to work for our talented global workforce.

To access PolyOne's news library online, please visit www.avient.com/news. Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.

ABS Quality Evaluations Certificate Of Conformance PolyOne Corporation 1260 Carden Farm Drive Clinton, TN 33716 U.S.A. Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. http://www.abs-qe.com/cert_validation PolyOne Corporation has been assessed by ABS Quality Evaluations,Inc. and found to be in conformance with the requirements set forth by: Certificate No: 55287

ABS Quality Evaluations Certificate Of Conformance PolyOne Corporation 733 E. Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. http://www.abs-qe.com/cert_validation PolyOne Corporation has been assessed by ABSQuality Evaluations,Inc. and found to be in conformance with the requirements set forth by: Certificate No: 55421

Microsoft Word - Avient - Taiwan Sales Terms and Conditions (Avient clean 10-15-24) 1 TERMS AND CONDITIONS THESE TERMS AND CONDITIONS GOVERN THE SALE OF PRODUCTS TO ANOTHER (“BUYER”) BY AVIENT CORPORATION AND ITS AFFILIATES (“SELLER”). 條款與條件 下列條款與條件適用於 AVIENT 公司及其位於臺灣之 關係企業（下稱「賣方」）向他方（下稱「買方」） 之產品銷售。 若買方轉 售產品，買方同意遵守 www.avient.com/terms 上之 《關於買方轉售 Avient 產品之條款與條件》。

Specialization Globalization Operational Excellence Commercial Excellence Associates 3 Nuestro Código de conducta 4 Pautas de conducts ética El Código de conducta de Avient (“Código”) es una guía para la conducta empresarial: su finalidad es ayudar a garantizar que se protegen nuestros valores y se mantiene y mejora la reputación de Avient. Hemos creado una empresa con gran impulso: una empresa con alcance global y clara visión. Bribery Act) que se aplican a todos nuestros negocios globales.

In conjunction with this proposed acquisition, Avient has also announced that it plans to explore sale options for its Avient Distribution business. The foundation of the protective materials business of DSM is the renowned technology and globally admired brand of Dyneema®, the World’s Strongest Fiber™. Jones Day served as outside legal counsel to Avient.

Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K. Avient Announces First Quarter 2025 Results...