Investor Relations Contact: Eric R. Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G. Investor Contacts

PIPE & FITTINGS MANUFACTURER W A T E R / F L U I D D I S T R I B U T I O N • Suitable for PP-R and PP-RCT • Specific color targets for external and inner layers • Improved resistance to chlorine for the inner layer • Food contact approval for the inner layer • Batch-to-batch consistency • Matched color references in concentrates suitable for PP-R and PP-RCT • Developed custom colorant/antioxidant combination masterbatch with high resistance to chlorine and food contact approval for the inner layer • Ensured batch-to-batch consistency for sustained performance Color concentrates and color/antioxidant combination masterbatch KEY REQUIREMENTS WHY AVIENT?

CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021. The above information was communicated by electronic meansand authenticated by the Registrar of Companies under section 1115 of the Companies Act 2006

e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 1 (2) Registration number: 556393-1020 Business name: Avient Colorants Sweden AB Address: Box 9053 200 39 MALMÖ Registered office: Malmö Note: The company is registered as a private limited company. THE COMPANY WAS FORMED 1990-03-29 SHARE CAPITAL Share capital...: SEK 3,200,000 Min.............: SEK 3,000,000 Max.............: SEK 12,000,000 Number of shares: 32,000 Min.............: 30,000 Max.............: 120,000 BOARD MEMBER, MANAGING DIRECTOR 660613-3954 Nilsson, Bo Patrik Joakim, Hovslagaregatan 13, 271 57 YSTAD BOARD MEMBER, CHAIR OF THE BOARD 640503 Merklein, Norbert, Fichtenstrasse 20, 61476 KRONBERG IM TAUNUS, TYSKLAND BOARD MEMBERS 750618-4089 Norén, Jenny Eva Kristina, Fårabäcksvägen 68, 212 91 MALMÖ 610322 Smeds, Jan-Håkan, Chämiweg 23, NEFTENBACH, TYSKLAND AUDITORS 556029-6740 Öhrlings PricewaterhouseCoopers AB, Box 4009, 203 11 MALMÖ Represented by: 710921-4689 PRINCIPALLY RESPONSIBLE AUDITOR 710921-4689 Olsson, Karin Maria, c/o PwC, 405 32 GÖTEBORG SIGNATORY POWER e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 2 (2) The board of directors is entitled to sign. ARTICLES OF ASSOCIATION Date of the latest change: 2020-11-02 FINANCIAL YEAR Registered financial year: 0101 - 1231 Latest annual report submitted covers financial period 20190101-20191231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2020-11-30 Avient Colorants Sweden AB 2016-01-19 Clariant Plastics & Coatings (Nordic) AB 2000-08-23 Clariant Masterbatches Norden Aktiebolag 1990-05-22 Drycolor Aktiebolag 1990-04-10 Nya Drycolor Aktiebolag **** The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office **** Bolagsverket 851 81 Sundsvall 0771-670 670 bolagsverket@bolagsverket.se www.bolagsverket.se 2020-11-30T14:53:51+0100 Sweden Bolagsverket Bolagsverket intygar äktheten och integriteten för detta dokument

This makes Hydrocerol very attractive to companies committed to reducing the potential environmental impact of their products. See our extensive library of resources about our growing company.

However, with an ever-evolving regulatory landscape and pressures from NGOs and consumers to limit the use of fluorinated substances, companies today are challenged with trying to meet the same product performance characteristics that PFAS provided in the past. The first is that companies can develop solutions working with shorter chain length perfluorinated chemicals which have been considered theoretically less persistent and not currently on many restricted lists.

Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com   Media Relations Contacts Company Officers

Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Media Relations Contacts Company Officers

Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Media Relations Contacts Company Officers

Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Media Relations Contacts Company Officers