This is to certify that the Quality Management System of: Avient Corporation - HQ 33587 Walker Road The Quality Management System is applicable to: Certificate No: 31307 Certification Date: 12 October 1995 Effective Date: 20 September 2023 Expiration Date: 07 October 2025 Revision Date: 20 September 2023 Dominic Townsend, President MANUFACTURE AND SUPPLY 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 AVIENT CORPORATE HEADQUARTERS AT AVON LAKE, OH, AND DISTRIBUTION OF RESINS This certificate may be found on the ABS QE Website (www.abs-qe.com). Glendale, AZ 85307 Activity: Design and Manufacture of Colorants for Plastics Activity: Manufacture of Colorants for Plastics Facility: Avient Corporation - Kennesaw, GA 8155 Cobb Center Drive Kennesaw, GA 30152 Facility: Avient Corporation - LaPorte, IN 707 Boyd Blvd LaPorte, IN 46350 Activity: Design and manufacture of specialty inks and specialty coatings. Ezcabarte calle H Nº3 Oricain, Navarra 31194 Facility: Avient Corporation - Tossiat, France 43 Place de la gare Tossiat 01250 France Activity: Design and Manufacture of Color and Additive Concentrates and Activity: Design and Manufacture of Color and Additive Concentrates and Page 7 of 7 Facility: Avient Corporation - Knowsley, United Kingdom Unity Grove Knowsley, Merseyside L349GT United Kingdom Facility: Avient Corporation - Alicante (Ibi - IQAP), Spain Guadalajara 6, Poligono Industrial L'Alfalç Ibi, Alicante 03440 Activity: Design and Manufacture of Liquid Colorants and Additives for Plastics, Assembly and Supply of Material Dosing Equipment Activity: Design, development and production of color concentrates and additives for plastic and synthetic fibers Facility: Avient Corporation - Vic (Barcelona), Spain Carretera de Vic a Olot,C-153, km 5 Masies de Roda, Barcelona 08500 Activity: Design, development and production of color concentrates and additives for plastic and synthetic fibers Facility: Avient Corporation - Melle, Germany Oldendorfer Straße 9 Thuringia 49342 Germany Facility: Avient Corporation - Gaggenau, Germany Adolf-Dambach-Str. 2 Gaggenau, Thuringia 76571 Germany Activity: Development and Manufacture of LSFOH (low smoke and fume, zero halogen) compounds Activity: Design and Manufacture of Specialty Engineered Thermoplastics

Industrial Valle del Cinca S/N Apartado E-22300 Barbastro Spain Berea, OH Liquid Colorants and Additives for Plastics , 680 N. No:8 34538 Esenyurt Turkey Gaggenau, Germany Design and Manufacture of Specialty Engineered Thermoplastics Adolf-Dambach-Str. 2 76571 Gaggenau Germany Glendale, AZ Manufacture of Colorants for Plastics 7601, North Glen Harbor Blvd. Ezcabarte calle H Nº3 31194 Oricain Spain Toluca, Mexico Design and manufacture of colorants for plastics AV.

(API) of Gainesville, Texas, a manufacturer of plastic pipe components, saw an opportunity to design a flapper valve that could improve upon traditional brass valves and enable non-corrosive, all-plastic piping systems. Don Houston of API said, “In addition to all these drawbacks, brass valves have to be joined to plastic piping with steel fittings. We wanted to make it easier for our customers to create durable piping systems by developing a plastic flapper valve that could be easily fused onto polyethylene (PE) pipe.

In addition, manufacturers of beauty and personal care packaging often require materials that are clear or brightly colored to attract consumer attention.

Sustainability Spotlight Hydrocerol™ Chemical Foaming Agents Reflection electron microscopy (REM) view of foamed plastic Hydrocerol Chemical Foaming Agents are supplied as concentrates CHEMICAL FOAMING AGENTS (CFAs) are chemical substances that react under the influence of heat to release gas into the plastic matrix during the manufacturing process of plastic parts. The gases form a cellular foam structure in the plastic that reduces the amount of material needed and hence the part’s weight. The portfolio includes non-hazardous endothermic substances that require minimum cooling of the plastic parts after manufacturing.

Bis (2­ethylhexyl) Phtalate (DEHP) is a plasticizer and component in the manufacturing of pelletized plastic compounds, mostly for use in the manufacture of wire and cable insulation (wire jackets).  Yes Bis (2­ethylhexyl) Adipate (DEHA) is a plasticizer and component in the manufacturing of pelleted plastic compounds, mostly for use in the manufacture of PVC­ based plastic wrap.  Bis (2­ethylhexyl) Adipate (DEHA) is a plasticizer and component in the manufacturing of pelleted plastic compounds, mostly for use in the manufacture of PVC­ based plastic wrap. 

One angle is to offer chemical foaming agents that help reduce plastic material use. These CFAs are the result of Avient’s combined experiences in the development of chemical foaming agents for automotive plastic components and polymer solutions for healthcare applications. They also improve the visual appearance of plastic components by reducing sink marks.

Unlike PVC, these materials are made without phthalate plasticizers, offer high clarity in some cases, bond to a variety of substrates, and can be customized for color and hardness. Specialty TPEs formulated for high clarity, without plasticizers, to improve high service temperature performance, and to meet biopharmaceutical needs for weldability and low extractables

Plastics In many ways, plastics are a perfect example of why a circular economy is so important. If not recycled properly, plastics can ends up in a landfill or, even worse, the ocean. Efforts can be made and systems can be built to keep discarded plastic in the economy to either be upcycled, recycled, reused or composted.

Activity: Design and Manufacture of Colorants and Additives for Plastics Page 6 of 10 833 Ridgeview Drive 921 Ridgeview Drive Activity: Design, Manufacture and Distribution of Thermoplastic Elastomer Activity: Design, Manufacture and Distribution of Thermoplastic Elastomer Facility: Avient Corporation - Merate, Italy Via Bergamo 51 23807, Merate, Lecco Facility: Avient Corporation - North Baltimore, OH 733 E. 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. Jorge Bei Maluf, 2.165, Vila Theodoro Suzano, SP 08686-000 Brasil Facility: Avient Corporation - Suzhou, China 77 Shenggang Street Suzhou Industrial Park Suzhou, Jiangsu Province 215024 Activity: Design and Manufacture of Colorants and Additives Concentrates Activity: Design and Manufacture of Plastics Compounding Material and Thermoplastic Elastomers Page 10 of 10 Facility: Avient Corporation - Vonore, TN 245 Avecor Drive Vonore, TN 37885 Facility: 225 Industrial Drive Vonore, TN 37885 Activity: Manufacture of Colorants and Additives for Plastics Activity: Warehouse