Have appropriate licenses, registrations and certifications required to conduct business in the locations where you operate

Have appropriate licenses, registrations and certifications required to conduct business in the locations where you operate

Exhibit 31.1 CERTIFICATION I, Stephen D. Newlin Exhibit 31.2 CERTIFICATION I, Bradley C. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

Exhibit 31.1 CERTIFICATION I, Robert M. Patterson Exhibit 31.2 CERTIFICATION I, Bradley C. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

Exhibit 31.1 CERTIFICATION I, Robert M. Patterson Exhibit 31.2 CERTIFICATION I, Bradley C. Exhibit 32.2 CERTIFICATION PURSUANT TO 18 U.S.C.

ISO 14001, Responsible Care 14001, ISO 45001, ISO 50001, and OHSAS 18001, certification at 74% of facilities. Sourcing method Unbundled energy attribute certificates, Renewable Energy Certificates (RECs) Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling United States of America MWh consumed accounted for at a zero emission factor 100,004 Comment Sourcing method Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 73 Unbundled energy attribute certificates, Renewable Energy Certificates (RECs) Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling Czechia MWh consumed accounted for at a zero emission factor 312 Comment Sourcing method Unbundled energy attribute certificates, Renewable Energy Certificates (RECs) Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling Italy MWh consumed accounted for at a zero emission factor 17,864 Comment Sourcing method Green electricity products (e.g. green tariffs) from an energy supplier, supported by energy attribute certificates Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling Belgium MWh consumed accounted for at a zero emission factor 334.93 Comment Sourcing method Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 74 Green electricity products (e.g. green tariffs) from an energy supplier, supported by energy attribute certificates Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling Germany MWh consumed accounted for at a zero emission factor 5,833.88 Comment Sourcing method Green electricity products (e.g. green tariffs) from an energy supplier, supported by energy attribute certificates Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling Sweden MWh consumed accounted for at a zero emission factor 1,882.92 Comment Sourcing method Green electricity products (e.g. green tariffs) from an energy supplier, supported by energy attribute certificates Low-carbon technology type Low-carbon energy mix Country/area of consumption of low-carbon electricity, heat, steam or cooling Argentina MWh consumed accounted for at a zero emission factor 239.95 Comment Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 75 C-CH8.3 (C-CH8.3) Does your organization consume fuels as feedstocks for chemical production activities? In addition, Avient has ISO 9001 worldwide and ISO 14001 and ISO 50001 certification at many facilities.

CRTM™ (Continuous Resin Transfer Molding) Reinforced Composite Sandwich Panels Lightweight, high-performance metal replacement solution PRODUCT DESCRIPTION Lightweight CRTM panels are custom engineered, high quality composite sandwich panels designed to deliver the structural benefits of metal panel systems.

We have helped customers develop parts that are: • Wear-resistant: End products such as bearings and sleeves that do not require lubrication • Conductive: Electrical and/or thermal conductivity, in molded and extruded parts • X-Ray opaque: Used for medical and dental devices.

APPLICATION BULLETIN DIMENSIONAL STABILITY Tight tolerances, minimal warp SOLUTION: Long fiber reinforced composites with polyketone (PK) POSSIBILITIES: Roof rack structures, running boards, brackets, component housings STRENGTH High strength- to-weight ratio, comparable to metal SOLUTION: Long fiber POSSIBILITIES: Tubular door frames, accessory motor mounts, tailgate locking systems MANUFACTURING EASE Injection moldable, design freedom, insert molding, part consolidation SOLUTION: Long fiber reinforced composites POSSIBILITIES: Seating shells, seat base components, tubular door frames, accessory linkages IMPACT RESISTANCE Durable in rugged environments and uses SOLUTION: Maximum toughness long fiber POSSIBILITIES: Side steps, bed steps, roof racks, brackets, bed extenders, tie downs CORROSION RESISTANCE Metal replacement, eliminate secondary coatings SOLUTION: Long fiber POSSIBILITIES: Underbody skid plate components, fuel doors, fasteners SUSTAINABILITY PIR/PCR content incorporation with high strength, lightweighting for fuel economy SOLUTION: Recycled content long fiber reinforced composites POSSIBILITIES: Roof rack structures, fender flares, rail covers, tail light protectors LIGHTWEIGHTING 30–40% weight reduction when switching from metal SOLUTION: Long carbon fiber reinforced composites POSSIBILITIES: Motor mounts, seating components, accessory mounts EXTREME PERFORMANCE High and low temperature performance, maintained properties with UV exposure, moisture performance SOLUTION: Long fiber POSSIBILITIES: Tail light protectors, fender flairs, guards, underbody components SURFACE AESTHETICS Color matches, fiber-rich or glossy surfaces, carbon fiber appearance SOLUTION: Moisture-resistant long fiber reinforced composites POSSIBILITIES: Lighting bars, side steps, bed steps, bike mounting brackets, cargo carriers NEXT-GEN UPGRADES Transform your aftermarket parts with efficient, lightweight long fiber thermoplastic solutions that redefine performance with strength, toughness, and design freedom.

Root causes of these problems may have included improper injection molding conditions or the incompatibility of TPE and vulcanized silicone materials with desirable additives.