China TEL: +86 21 32799000 Zhu Hai Ming M anagement Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. TEL:+31102922689. assurance. dnvgl.com Appendix to Certificate PolyOne-Shanghai, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne-Shanghai, C hina No. 88, Guo Shou Jing Road, Z. Park, Pudong, Shanghai, China, 201203 Design and Manufacture of Masterbatch Polyone - Shanghai, China (Tianjin) Branch No. 28#C , Jin Bin Hi-Tech Industrial Park, 156 Nan Hai Road, Tianjin Economic-Technological, Tianjin, China, 300457 Manufacture of Masterbatch

SHENZEN, China – April 13, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, has unveiled its new liquid toner technology for polycarbonate (PC) resins, ColorMatrix™ Optica™ for PC. 

GUANGZHOU, China – PolyOne announced today at Chinaplas 2017 that COMPTEK™ blends based on polyetheretherketone (PEEK) are now available in Asia for multi-use medical devices, electrical connectors, and other demanding applications.

GUANGZHOU, China – May 21, 2019 – PolyOne is highlighting its expanding long fiber thermoplastic portfolio at CHINAPLAS 2019 this week, including Surround™ EMI/RFI Shielding formulations and Complēt™ LFT formulations.

There is a strong global trend and awareness for enhanced well-being, comfort, and safety in the post-pandemic era,” said Bob Lee, General Manager, Color and Additives Greater China at Avient.

Ringier Plastics Technology Innovation Awards are a leading manufacturing-focused competition in China.

For certificates issued in the People’s Republic of China information may also be verified on the Certification and Accreditation Administration of the People’s Republic of China’s website (www.cnca.gov.cn). For certificates issued in the People’s Republic of China information may also be verified on the Certification and Accreditation Administration of the People’s Republic of China’s website (www.cnca.gov.cn). For certificates issued in the People’s Republic of China information may also be verified on the Certification and Accreditation Administration of the People’s Republic of China’s website (www.cnca.gov.cn).

No. 1, Qihang Industry Park, Haoxiang Road, Shajing Town, Baoan, Shenzhen, Guangdong, China 518104 (USI: C5M65R) and, if applicable, the remote supporting locations as mentioned in the Appendix accompanying this Certificate has been found to conform to the Quality Management System standard: IATF 16949:2016 This certificate is valid for the following scope: DESIGN AND MANUFACTURE OF PLASTIC COMPOUNDING MATERIAL EXCLUSION: NONE http://www.dnv.com Certificate no.: 273138-2018-AQ-RGC-IATF IATF Certificate No: 0558323 Place and date: Katy, TX, 10 December 2024 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. China 201206 (USI: PKFHC3) Process Design, Product Design DNV PolyOne-Suzhou, China 77 Shenggang Street SIP, Suzhou, Jiangsu, China 215127 (USI: CF4943) Contract Review, Sales, Supplier Management DNV http://www.dnv.com

China TEL: +86 21 32799000 Zhu Hai Ming M anagement Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. TEL:+31102922689. assurance. dnvgl.com C ertificate N o: 1 6 1 4-2000-AE-RGC-RvA I nitial c ertification date: 2 3 M ay, 2 0 00 V alid: 2 3 M ay, 2 0 18 - 2 3 May, 2 021 This is to certify that the management system of PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z. Park, Pudong, Shanghai, China, 201203 has been found to conform to the Environmental Management System standard: ISO 14001:2015 This certificate is valid for the following scope: Design and Manufacture of Masterbatch

China TEL: +86 21 32799000 Zhu Hai Ming Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. TEL:+31(0)102922689. www.dnvgl.com/assurance Certificate No: 1614-2000-AE-RGC-RvA Initial certification date: 23 May, 2000 Valid: 23 May, 2021 – 23 May, 2024 This is to certify that the management system of PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z. Park, Pudong, Shanghai, China, 201203 has been found to conform to the Environmental Management System standard: ISO 14001:2015 This certificate is valid for the following scope: Design and Manufacture of Masterbatch