ECert - 2023-09-08T090842.188.pdf ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.

ECert.QECertificate ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.

Unified social credit code: 91320412MA1NMF5W4P is in conformity with Environmental Management System Standard: GB/T24001-2016 / ISO14001:2015 The certificate is valid to the following product(s)/service: Textile (Yarn), Glass Products (Yarn) Coating Processing and Related Management Activities Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

Unified social credit code: 91320412MA1NMF5W4P is in conformity with Environmental Management System Standard: GB/T 24001-2016 / ISO 14001:2015 The certificate is valid to the following product(s)/service: Coating Processing of Textile (Yarn) and Glass Products (Yarn) and Related Management Activities Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

Unified social credit code: 91320412MA1NMF5W4P is in conformity with Quality Management System Standard: GB/T 19001-2016 / ISO 9001:2015 The certificate is valid to the following product(s)/service: Coating Processing of Textile (Yarn) and Glass Products (Yarn) Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

Dodd Vice President of Marketing Thomas J. Kunkle Vice President, General Counsel and Secretary Michael E. Kahler Senior Vice President Chief Commercial Officer Dr.

Investor Relations, Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com, Media, Kyle G. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

Investor Relations, Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, Giuseppe.DiSalvo@avient.com; Media, Kyle G. Rose, Vice President, Marketing and Communications, Avient Corporation, +1 440-930-3162, kyle.rose@avient.com

Calvert City facility, together with certain defense costs of Goodrich Corporation. These same Court rulings and the settlement agreement provide a mechanism to allocate future remediation costs at the Calvert City facility to Westlake Vinyls, Inc. CRIST Vice President, Key Account Management and Vice President of Asia RICHARD J.

ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.