This is to confirm that the Environmental, Health, Safety and Security Management System of: Avient Corporation HQ 33587 Walker Road The Environmental, Health, Safety and Security Management System is applicable to: Certificate No: 65536 Effective Date: 29 September 2023 Expiration Date: 28 September 2026 Revision Date: 22 November 2023 Dominic Townsend, President CORPORATE SUPPORT ACTIVITIES, DESIGN, MANUFACTURE AND DISTRIBUTION OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND PELLETS, SPECIALTY COMPOUNDS AND COLORANTS. Industrial Valle del Cinca S/N Apartado Barbastro, Huesca E-22300 Facility: Avient Corporation - Bethel, CT 19 Francis J Clark Circle Bethel, CT 06801 Activity: Design and Manufacture of Specialty Engineered Thermoplastics Activity: Design and Manufacture of Colorants and Compounds for Fluoropolymer and High Temperature Polymers. Water Street North Baltimore, OH 45872 Activity: Manufacture of Colour and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Activity: Design and Manufacture of Custom PVC Plastisol and PVC Slush Mold Powder Facility: Avient Corporation - Malmö, Sweden Järnyxegatan 7 P.O.

This is to certify that the Environmental Management System of: Avient Corporation HQ 33587 Walker Road The Environmental Management System is applicable to: Certificate No: 65537 Certification Date: 29 September 2023 Effective Date: 22 March 2024 Expiration Date: 27 September 2026 Revision Date: 22 March 2024 Dominic Townsend, President CORPORATE SUPPORT ACTIVITIES, DESIGN, MANUFACTURE AND DISTRIBUTION OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND PELLETS, SPECIALTY COMPOUNDS AND COLORANTS. Industrial Valle del Cinca S/N Apartado Barbastro, Huesca E-22300 Facility: Avient Corporation - Bethel, CT 19 Francis J Clark Circle Bethel, CT 06801 Activity: Design and Manufacture of Specialty Engineered Thermoplastics Activity: Design and Manufacture of Colorants and Compounds for Fluoropolymer and High Temperature Polymers. Ezcabarte calle H Nº3 Oricain, Navarra 31194 Facility: Avient Corporation - Phan Thong 700/848 Moo 1,Tambol Phan Thong Amata City Chonburi Industrial Estate Phan Thong, Chonburi 20160 Thailand Activity: Manufacture of Masterbatches, Additives, ECCOH, and Compounds for Pigmenting Thermoplastic Facility: Avient Corporation - Pogliano, Italy Via Lainate 26 20005, Pogliano Milanese, Milano Facility: Avient Corporation - Randburg, South Africa 329 Tungsten Rd, Strydompark Randburg, Gauteng 2194 South Africa Activity: Manufacture of Colour and Additive Concentrates, Thermoplastic Resins and Specialty Compounds Activity: Manufacture of Masterbatches Facility: NEU Specialty Engineered Materials, LLC 15 Corporate Drive North Haven, CT 06473 Facility: Avient Corporation - Norwalk, OH 80 North West Street Norwalk, OH 44857 Activity: Compound, Supply, and Prototyping Services of Thermoplastics Activity: Design and Manufacture of Colorants and Additives for Plastics Page 8 of 10 Facility: Avient Corporation - Sant Andreu, Spain Crta.

Versaflex™ OM 3060 – 60 Shore A, silky clear overmolding solution Versaflex™ OM 9-802CL – 40 Shore A, grippy clear overmolding solution Versaflex™ OM 9-802CL – Water-clear overmolding solution 

AP2028 839 BLUE PATCHING COMPOUND AP7028 851 BROWN PATCHING COMPOUND

T660.4 X-ETFE EP-521 COMPOUND YELLOW PFA-340 Compound Graphite-Filled

PP COMPOUND A PP COMPOUND C

T238.0 NP-30 COMPOUND PRECOL BLACK T272.8 NP-20 COMPOUND 10% BASO4 GREY

XRU-2698 XETFE COMPOUND WHITE XRU-2699 XETFE COMPOUND BLUE

T448.8 ETFE 2183 COMPOUND PRECOL GREY XRU-2286 FEP COMPOUND PRECOLORED BROWN

T251.9 NP-101 COMPOUND PRECOL GREEN COMPOUND 20% TALC W/OCEANIX