In addition to a version for clinicians, the company offers the BiowavePRO® non-invasive neuromodulation system designed for individual use by athletes to reduce pain and enhance rehabilitation. For guidance on materials for the housing, Biowave consulted PTA Corp., its molder, who in turn contacted its long-time partners on the GLS Thermoplastic Elastomers team at Avient.

EU and US food contact, toy, UL 94 recognition, are available See our extensive library of resources about our growing company.

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Omnicolor colorants are not suitable for any food contact, cosmetic, medical, pharmaceutical or toy applications. See our extensive library of resources about our growing company.

The company is certified ACC Responsible Care® and certified Great Place to Work®.  Investor Contacts

e-Certificate of registration Swedish Companies Registration Office BRANCH D1a- 6858922 Registration number Date of registration of the company Document created on Date of registration of current name Page 516411-5031 2018-08-28 2021-11-30 17:11 2021-11-29 1 (3) Pending matter(s) The register indicates pending matter(s) regarding a change to the registered information at the time this certificate was created. e-Certificate of registration Swedish Companies Registration Office BRANCH D1a- 6858922 Registration number Date of registration of the company Document created on Date of registration of current name Page 516411-5031 2018-08-28 2021-11-30 17:11 2021-11-29 2 (3) Registration number: 516411-5031 Business name: Avient S.à r.l., Sweden Filial Address: Drottninggatan 56 411 07 GÖTEBORG County and municipality: Västra Götaland, Göteborg Note: MANAGING DIRECTOR 630516 Palm, Christoph, Gruss Strooss 35, L-9991 WEISWAMPACH, LUXEMBURG AUDITORS 556053-5873 Ernst & Young Aktiebolag, Box 7850, 103 99 STOCKHOLM Represented by: 850807-5135 PRINCIPALLY RESPONSIBLE AUDITOR 850807-5135 Edman, Mikael Thomas Gunnar, c/o Ernst & Young AB, 401 82 GÖTEBORG SIGNATORY POWER Signatory power alone by Palm, Christoph FINANCIAL YEAR Registered financial year: 0101 - 1231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2021-11-29 Avient S.à r.l., Sweden Filial 2018-08-28 PolyOne S.à.r.l., Sweden Filial INFORMATION ABOUT THE FOREIGN COMPANY B226205 Avient S.á.r.l. 19, Route de Bastogne L-9638 Pommerloch LUXEMBURG Registered office of the foreign company: Pommerloch Name of the register in which the foreign company is registered: e-Certificate of registration Swedish Companies Registration Office BRANCH D1a- 6858922 Registration number Date of registration of the company Document created on Date of registration of current name Page 516411-5031 2018-08-28 2021-11-30 17:11 2021-11-29 3 (3) RCS, Registre de Commerce, Luxembourg Business Register LUXEMBURG Foreign company's financial year: 0101 - 1231 The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office.

Contact us today for small order quantity orders. Contact your FIBER-LINE® representative for exact product details which conform to your specific requirements. Contact us today for small order quantity orders.

US FDA and EU food contact information is available on request. ANTIOXIDANTS FOR METAL/PP-R AND PP-RCT SYSTEMS Plastic systems in contact with metal inserts can also be subject to oxidization. Contact your Avient sales representative for more information.

Page 3 WATER RESOURCES • ENVIRONMENTAL SERVICES • INDUSTRIAL HYGIENE • SAFETY • SUSTAINABILITY Apex Companies, LLC • (800) 733‐2739 • www.apexcos.com Statement of independence, impartiality and competence Apex is an independent professional services company that specializes in Health, Safety, Social and Environmental management services including assurance with over 30 years history in providing these services. Attestation: Scott Johnston, Lead Verifier Cody Lorentson, Technical Reviewer Principal Consultant Program Manager Apex Companies, LLC. Apex Companies, LLC.

Page 3 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com Statement of independence, impartiality and competence Apex is an independent professional services company that specializes in Health, Safety, Social and Environmental management services including assurance with over 30 years history in providing these services. Attestation: Scott Johnston, Lead Verifier David Reilly, Technical Reviewer Principal Consultant Principal Consultant Apex Companies, LLC. Apex Companies, LLC.