CLEVELAND, Nov. 3, 2021 /PRNewswire/ -- Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, will November 3, 2021

September 3, 2014 September 3, 2014

PLASTIC INJECTION MOLDER V A R I O U S M A R K E T S & A P P L I C A T I O N S • Ability to use a color concentrate in multiple resins • Low let down ratio (LDR) • Color consistency over time • Offered versatile solution across resins and in various molding methods • Provided range of 1-3% LDRs in four standard colors • Achieved consistent color in a variety of products and markets for over 10 years Omnicolor™ Multipurpose Colorants KEY REQUIREMENTS WHY AVIENT?

& European climates for an extended period • Maintain color stability and resist brittleness for a minimum of 3 years • Reliable supplier with good product quality and stable supply • Offered a UV stabilizer for PP multi-filament yarn • Delivered good light fastness • Provided cost effectiveness by combining colorant and UV additive solutions • Had in-house Q-Lab UV (QUV) tester to meet strict customer standards Smartbatch Combination Colorants & Additives KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-combination-colorants-additives Slide 1: Pp Multi-filament manufacturer

February 3, 2020 ANAHEIM, Calif. – February 3, 2020 – At Medical Design and Manufacturing (MD&M) West next week, PolyOne will launch its newest medical grade, Versaflex™ HC BT218, formulated in response to supply challenges stemming from silicone shortages and sterilization facility closures. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

April 3, 2019 MANNHEIM, Germany – April 3, 2019 – This week at the Plastics in Automotive Engineering (PIAE) congress, PolyOne is presenting its deep portfolio of advanced polymers, colorants, and additives that help automotive manufacturers keep pace with changes in technology and consumer demand. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

February 3, 2020 ANAHEIM, Calif. – February 3, 2020 – At Medical Design and Manufacturing (MD&M) West next week, PolyOne is focusing on helping customers solve pressing medical device challenges through a “More Than Materials” approach. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

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. 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: 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.

PRODUCT BULLETIN PROPERTY COMPARISON TRILLIANT HC VS NYLON Flexural Tensile — PKE-GF PA12-GF PA612-GF Shrink Modulus Chemical Resistance Flexural Tensile (Dry)Tensile CO2 Emission Factor — Trilliant HC — PA6-GF — PA66-GF Wear 1: Poor 3: Good 5: Excellent Flexural Tensile — PKE-GF PA12-GF PA612-GF Shrink Modulus Chemical Resistance Flexural Tensile (Dry)Tensile CO2 Emission Factor — Trilliant HC — PA6-GF — PA66-GF Wear 1: Poor 3: Good 5: Excellent 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation. STANDARD COLORS FOR BIOPHARMACEUTICAL APPLICATIONS GLASS FILL COLOR PRODUCT NAME Bright White HC8910-0004 RS 20% HC8910-0017 RS 33% HC8910-0018 RS Cool Gray 1C HC8910-0005 RS 20% HC8910-0006 RS Cool Gray 3C HC8910-0007 RS 20% HC8910-0008 RS Warm Gray 1 C HC8910-0009 RS 20% HC8910-0010 RS TPX 12-0703 Tan HC8910-0011 RS 20% HC8910-0012 RS 542C Blue HC8910-0013 RS 20% HC8910-0014 RS 301C Blue HC8910-0015 RS 20% HC8910-0016 RS Colors may vary from actual color shown

Microsoft Word - Terms and Conditions of Sale for Indonesia (English 12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. Upon receipt of a notice of an alleged claim, Seller may suspend all further deliveries. 4. The arbitration will be conducted by 3 (three) arbitrators in accordance with the applicable rules of BANI ("BANI Rules") applicable at the time of dispute.