Certificate Avient Corporation S E s Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation 33587 Walker Road, Building 428 Avon Lake OH 44012 United States has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: Manufacture of plastic compounds, color and performance additives, engineered thermoplastics, vinyl resins, custom mixed plastic materials, custom and commodity colorants for plastics, polyurethane systems, and plasticizers with design and sampling support at Suwanee, GA, and purchasing, customer service, logistics, quality, design and sampling support at PolyOne Corporate Headquarters at Avon Lake, OH, and distribution of resins Certificate No: 31307 Certification Date: 12 OCT 1995 Effective Date: 11 JUL 2024 Expiration Date 07 OCT 2025 Revision Date: 17 JUL 2024 Dominic Townsend, President Page 1 of 4 S E s ISO 9001:2015 Certificate Of Conformance ANNEX Certificate No.: 31307 Avient Corporation At the below facilities The Manufacture of Pultruded and Filament wound components Pultrusion and CRTM 3943, Valley East Industrial Drive, Buildings 1,2,3,4 Birmingham - AL 35217 United The Manufacture of Pultruded and Filament wound components Pultrusion and Filament Wound Tubing 3968, Valley East Industrial Drive, Building 5 Birmingham - AL 35217 United States The Manufacture of Pultruded and Filament wound components Pultrusion 3950, Valley East Industrial Drive, Building 6 Birmingham - AL 3517 United States Corporation Management of QMS. Central No. 200 50200 Toluca Mexico Tossiat, France Design and Manufacture of Color and Additive Concentrates and Specialty Compounds , 43 Place de la gare Tossiat - 01250 France Vic (Barcelona), Design, development and production of color concentrates and additives for plastic and synthetic fibers Carretera de Vic a Olot,C-153, km 5 08500 Masies de Roda Vonore Warehouse Warehouse , 225 Industrial Drive Vonore - TN 37885 United States Vonore, TN Manufacture of Colorants for Plastics , 245 Avecor Drive Vonore - TN 37885 United States Corporation- Suwanee, GA Design and Sampling , 2900 Shawnee Industrial Way Suwanee - GA 30024 United NEU Specialty Engineered Materials, LLC Compound and supply of thermoplastics for the medical device industry , 15 Corporate Drive North Haven - CT 06473 United PolyOne Polymers India Pvt. The design and manufacture of Color & Additive Concentrates, Specialty Engineering Materials Plot No.

Industri Kecil & Sederhana Simpang Ampat Penang 14120 Malaysia Avient Colorants MX S.A. de C.V. Strydom Park 329 2194 Randburg South Africa Avient Colorants Spain S.A. Organize Sanayi Bölgesi, 83539 27060 Sehitkamil Türkiye Avient Colorants USA LLC 926 Elliott Road Albion MI 49224 3023 Mayo Street Dalton GA 30720 85 Industrial Park Holden MA 01520 17 Foss Road Lewiston ME 04240 9101 International Parkway Minneapolis MN 55428 United States 337 Timber Road Mooresville NC 28115 United States 4425 East Elwood Street, Suite 104 Phoenix AZ 85040 United States 625 Wegner Drive West Chicago IL 60185 United States 382 Arbor Court Winchester VA 22602 United States Avient Vietnam Company Limited 3 VSIP street 02 75000 Tuan Anh Town Vietnam (Guangzhou) Ltd.

BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF AMENDMENT OF “CLARIANT PLASTICS & COATINGS USA LLC”, CHANGING ITS NAME FROM "CLARIANT PLASTICS & COATINGS USA LLC" TO "AVIENT COLORANTS USA LLC", FILED IN THIS OFFICE ON THE ELEVENTH DAY OF JANUARY, A.D. 2021, AT 10:39 O`CLOCK A.M.

Water Street North Baltimore OH 45872 United States NEU Specialty Engineered Materials, LLC Compound, Supply, and Prototyping Services of Thermoplastics 15 Corporate Drive North Haven CT 06473 United States Avient Corporation Design and Manufacture of Colorants and Additives for Plastics 80 North West Street Norwalk OH 44857 United States Page 3 of 5 Avient Corporation Manufacture of Masterbatches, Additives, ECCOH, and Compounds for Pigmenting Thermoplastic Pol. De Martorell 124, 8740 Sant Andreu, Spain Avient Colorants MX S.A de C.V. Design and Manufacture of Colorants and Additives for Plastics Plasticos #28 Santa Clara Coatitla, Ecatepec Morelos 55540 Mexico Avient Corporation Design and Manufacture of Colorants and Additives for Plastics Zhang Jiang Hi-tech Park No. 88, Guoshoujing Road Pudong , 201203 Shanghai, Avient Corporation - Shenzhen, China Design and Manufacture of Colorants and Additives for Plastics No. 1, Qihang Industry Park, Haoxiang Road , 518104 Shenzhen, Avient Corporation Design and Manufacture of Colorants and Additives Concentrates and Av.

Individual/sole proprietor or single-member LLC C Corporation S Corporation Partnership Trust/estate Limited liability company. Do not check LLC if the LLC is classified as a single-member LLC that is disregarded from the owner unless the owner of the LLC is another LLC that is not disregarded from the owner for U.S. federal tax purposes. No. 10231X Form W-9 (Rev. 10-2018) AVIENT CORPORATION ✔ 5 D 33587 WALKER ROAD AVON LAKE, OH 44012 3 4 1 7 3 0 4 8 8 7/20/2020

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Do not check LLC if the LLC is classified as a single-member LLC that is disregarded from the owner unless the owner of the LLC is another LLC that is not disregarded from the owner for U.S. federal tax purposes. No. 10231X Form W-9 (Rev. 10-2018) AVIENT CORPORATION AVIENT COLORANTS USA LLC ✔ 5 E 33587 WALKER ROAD AVON LAKE, OH 44012 3 4 1 7 3 0 4 8 8 1/15/2021 Form W-9 (Rev. 10-2018) Page 2 By signing the filled-out form, you: 1. Partnership, LLC that is not a single-member LLC, C corporation, or S corporation.

Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. Our products add important characteristics, such as water-blocking, water repellence, adhesion, color, and wear & UV-resistance to these and many other applications. Headquarters, R&D, Manufacturing Fiber-Line LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 Manufacturing Operations Fiber-Line LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 European Headquarters, Operations, Sales Office Fiber-Line International B.V.

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 Activity: Design and Manufacture of Colorants and Additives for Plastics 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. Box 5882 Riyadh, Kingdom 11432 Saudi Arabia Activity: Design & Manufacture of Color, Additive Concentrate & Specialty Activity: Design and Manufacture of Color and Additive Concentrates, Page 9 of 10 Facility: Avient Corporation - Tangerang, Indonesia Gatot Subroto KM. 4 Jalan Kalisabi No. 1 Building 37 Tangerang, Banten 15138 Indonesia Facility: Avient Corporation - Tao Yuan, Taiwan No. 30, Hsing Pang Road Tao Yuan, -- - 330457 Taiwan Facility: Avient Corporation - Toluca, Mexico AV. WA-06, Kalyan-Padgha Road Vashere, Maharashtra 421302 Activity: Design and Manufacture of Colorants and Additives for Plastics Activity: Design & Manufacture of Color, Additive Concentrate & Specialty Facility: Avient Corporation - Suzano, Brasil Av.