Data and information supporting the Scope 3 GHG emissions assertion were in many cases estimated rather than historical in nature. Level of Assurance and Qualifications:  Limited  This verification used a materiality threshold of ±5% for aggregate errors in sampled data for each of the above indicators GHG Verification Methodology: Evidence-gathering procedures included, but were not limited to:  Interviews with relevant personnel of Avient and their consultant;  Review of documentary evidence produced by Avient;  Review of Avient data and information systems and methodology for collection, aggregation, analysis and review of information used to determine GHG emissions; and  Audit of sample of data used by Avient to determine GHG emissions. Attestation: Scott Johnston, Lead Verifier David Reilly, Technical Reviewer Principal Consultant Principal Consultant Apex Companies, LLC.

Data and information supporting the Scope 3 GHG emissions assertion were in many cases estimated rather than historical in nature. Level of Assurance and Qualifications:  Limited  This verification used a materiality threshold of ±5% for aggregate errors in sampled data for each of the above indicators GHG Verification Methodology: Evidence-gathering procedures included, but were not limited to:  Interviews with relevant personnel of Avient and their consultant;  Review of documentary evidence produced by Avient;  Review of Avient data and information systems and methodology for collection, aggregation, analysis and review of information used to determine GHG emissions; and  Audit of sample of data used by Avient to determine GHG emissions. Attestation: Scott Johnston, Lead Verifier Cody Lorentson, Technical Reviewer Principal Consultant Program Manager Apex Companies, LLC.

Level of Assurance and Qualifications: • Limited • This verification used a materiality threshold of ±5% for aggregate errors in sampled data for each of the above indicators GHG Verification Methodology: Evidence-gathering procedures included, but were not limited to: • Interviews with relevant personnel of Avient and their consultant; • Review of documentary evidence produced by Avient; • Review of Avient data and information systems and methodology for collection, aggregation, analysis and review of information used to determine GHG emissions; and • Audit of sample of data used by Avient to determine GHG emissions. It is our opinion that Avient has established appropriate systems for the collection, aggregation and analysis of quantitative data for determination of these GHG emissions for the stated period and boundaries. Armstrong-Friberg, Lead Verifier Scott Johnston, Technical Reviewer ESG Program Manager Principal Consultant Apex Companies, LLC.

TECHNICAL BULLETIN reSound™ BIO Thermoplastic Elastomers Customizable Bio-based TPEs reSound™ BIO TPEs are formulated utilizing between 35 and 60 percent bio-renewable content.

10 standard colors • All colors are heavy metal-free • Special color matches can be done upon request using Pantone® or RAL color standards • Customized pigment loadings can be provided to address specialized coloration needs • Functional additives can be provided to address tailored properties Let-down ratios and specific processing suggestions are provided in the product data sheet available from your Avient representative. OUR CUSTOMER SUPPORT ACTIVITIES INCLUDE: • Food and Drug Administration (FDA) compliance support • Compliance with National Inventories • Biocompatibility compliance • REACH – European Legislation on Registration, Evaluation, Authorization and Restriction of Chemicals • Restriction on Hazardous Substances (RoHS) and Waste Electrical and Electronic Equipment (WEEE) electronics compliance • Data entry into the International Material Database System (IMDS) • Hazardous communication, including safety data sheets (SDS) and labeling GENERATING REGULATORY COMPLIANCE DOCUMENTATION INCLUDING: • California Proposition 65 • European Food Contact • Individual Customer Restricted Substance lists • Drug Master Files • Medical Application Files • Food and Drug Administration Certification • Potable Water Certification Contact us if you have questions or for specific information on your application’s regulatory compliance requirements.

TECHNICAL BULLETIN SOLUTIONS DESIGNED TO ADDRESS EVOLVING NEEDS Determining the appropriate polymer for the job can prevent product failures, thereby reducing service calls, product returns and warranty claims for manufacturers.

TECHNICAL BULLETIN 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.

Based on visual test results TECHNICAL BULLETIN TEST METHOD: INDIGO STAIN RESISTANCE TEST The same rigorous method used to test for staining on automotive interior seats, Ford Laboratory Test Method – BN 107-01, was used.

TECHNICAL BULLETIN 1.844.4AVIENT www.avient.com PROPERTY TEST METHOD UNITS VERSAFLEX ™ CE 3130-80N VERSAFLEX™ CE 3130-70N Shore Hardness ASTM D2240 Shore A 79 69 Specific Gravity ASTM D792 g/cm3 1.08 1.04 Tensile Strength ASTM D412 psi 2,484 2,222 Melting Flow Index (190°C, 21.6kg) ASTM D1238 g/10min 5.2 4.4 Elongation ASTM D412 % 864 667 Flexural Modulus @ 300% ASTM D790 psi 975 855 Viscosity @ 11,170 sec, 200°C ASTM D3835 Pa.s 30.6 22.2 Abrasion (Mass Lost) ASTM D3389 mg 1.1 2.6 UV Resistance 0.68W/m 2 45°C 168hours — Good Good Stain Resistance *Condition 1*Condition 2 — Excellent Excellent Blooming 85% RH30°C,168 hours — Non Non Processing (Demold) — — Excellent Good Cycle Time — — Short Middle Overmold Substrate — — PC/ABS PC/ABS KEY PROPERTIES AND OVERMOLD PERFORMANCE Copyright © 2021, Avient Corporation.

Specifications are generally agreed to before purchase by each business’s technical management. What level of lab / technical support is provided during the early phase of sales to a new customer? All critical systems located central data center.