Media contact Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@avient.com Media Relations Contacts Company Officers

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

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.

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?

This document is property of Avient Corporation and may not be reproduced or communicated to third parties without authorization. 3.0 Supplier Management 3.1 Supplier Quality Management System Avient expects its supply base to maintain a certified QMS at all of its locations and those of its affiliated companies in accordance with the requirements of ISO 9001, ISO 13485, or IATF 16949 (depending on supplier commodity), as applicable. Upon determining a product or process change is needed, and prior to implementing such change, the supplier shall contact and consult with the appropriate Avient representative.

As a global company, PolyOne must meet requirements in many countries around the world. If you have specific questions on documents you have received from PolyOne, please contact your PolyOne seller or Customer Service Representative, who can put you in touch with one of our Product Stewardship representatives to help explain the change.

CERTIFICATE CONFIRMING INCORPORATION OF COMPANY AVIENT COLORANTS SINGAPORE PTE. name change effective from 17/05/2021) :Company Name 201916958NUEN : This is to confirm that the company was incorporated under the Companies Act, on and from 27/05/2019 and that the company is a PRIVATE COMPANY LIMITED BY SHARES. The company was formerly known as: S/N Company Name Effective From 1.

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

Polyone Corporation at Ingalls & Snyder Seminar for Specialty Chemical Companies Avient Company Officers Investor Contacts