FAMOUS UNDERWEAR BRAND U N D E R W I R E • Formulated a 40% bio-derived material to help meet customer’s sustainable goals with good rigidity and supporting strength • Improved comfort and softness compared to a normal steel underwire design • Passed ISO 105-X18 textile test with good chemical resistance, durability, and wash fastness Customized reSound™ BIO TPE WHY AVIENT?

GLOBAL ELASTIC & RUBBER PRODUCT MANUFACTURER T O U R N I Q U E T B A N D • Hardness 45, shore A • Thickness 0.5mm and Tensile set

EUROPEAN MEDICAL DEVICE MANUFACTURER F A C E M A S K V E N T I L A T I O N V A L V E • ISO 9001 and USP VI compliant • Compatible with overmolding onto PP • Translucent and highly colorable • Soft touch • Provided valuable regulatory support and documentation, enabling faster internal trials and material qualification for this customer • Worked together with customer to select the best material from a broad portfolio of medical TPE grades • Trusted as a polymer supplier for multiple healthcare applications Dynaflex™ G2711 Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

PowerPoint Presentation MEDICAL DEVICE MANUFACTURER O S T O M Y B A G S E A L S • Comply with ISO 10993 and FDA Class II medical device regulations • Offer Good sealing performance • Provide technical supports for processing recommendations • Deliver a high compression set materials to improve comfort • Provided a medical-grade TPE to help the customer meet necessary regulatory specifications and gain market share • Provided technical support during design and the manufacturing process for EVA bonding • Delivered soft-touch feel and excellent sealing performance Versaflex HC Thermoplastic Elastomers - G2705 Formulation KEY REQUIREMENTS WHY AVIENT?

Delaware The First State Page 1 5799827 8100 Authentication: 202256240 SR# 20210072080 Date: 01-11-21 You may verify this certificate online at corp.delaware.gov/authver.shtml I, JEFFREY W. 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. AND I DO HEREBY FURTHER CERTIFY THAT THE EFFECTIVE DATE OF THE AFORESAID CERTIFICATE OF AMENDMENT IS THE FIFTEENTH DAY OF JANUARY, A.D. 2021.

October 2018) Department of the Treasury Internal Revenue Service Request for Taxpayer Identification Number and Certification Go to www.irs.gov/FormW9 for instructions and the latest information. Social security number – – or Employer identification number – Part II Certification Under penalties of perjury, I certify that: 1. Certification instructions.

Certification instructions. You must sign the certification. You may cross out item 2 of the certification. 4.

Certificate of Amendment Loi canadienne sur les sociétés par actionsCanada Business Corporations Act Certificat de modification Avient Colorants Canada Inc. 942266-8 Corporate name / Dénomination sociale Corporation number / Numéro de société Raymond Edwards Date of amendment (YYYY-MM-DD) Date de modification (AAAA-MM-JJ) Director / Directeur 2021-01-15 I HEREBY CERTIFY that the articles of the above-named corporation are amended under section 178 of the Canada Business Corporations Act as set out in the attached articles of amendment.