© 2021 Avient Corporation. Avient Corp., Avon Lake, OH) containing ZPT (Lonza Group AG, Morristown, New Jersey) was formulated into select grades of Versaflex™ and OnFlex™ GLS™ TPEs. ORCID Zachary Zander https://orcid.org/0000-0002-4114-1323 ENDNOTE 1 Milicron™ is a registered trademark of Cincinnati Milacron Inc.; Roboshot™ is a registered trademark of Fanuc Corporation; Versaflex™, OnFlex™, and GLS™ are registered trademarks of Avient Corporation; Dynisco™ is a registered trademark of Dynisco LLC; Datacolor 650™ is a registered trademark of Datacolor Holding AG.

Avient has developed several innovative technologies that have continued to set the standard in overmolding. Consult with an Avient GLS representative Consult with an Avient representative

We are mailing this proxy statement and the enclosed proxy card and, if applicable, the voting instruction card, to shareholders on or about March 31, 2017. This proxy statement is to inforff m you about the matters to be acted upon at the meeting. Our proxy materials for the 2017 Annual Meeting will be mailed on or about March 31, 2017.

Handb 4 About Authors: Krishna Venkataswamy is the Director of Research and Development, Rajesh Varma is Application evelopment Manager and Walter Ripple is the Director of Marketing for the Thermoplastics Elastomers Division of GLS Corporation, 833, Ridgeview Drive, McHenry, IL 60050 D Thermoplastic Elastomers for Overmolding Applications The growth of the thermoplastic elastomers continues over the last three decades and the projections are very optimistic3.

1 TERMS AND CONDITIONS These Terms and Conditions (“Terms”) govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). ALLGEMEINE GESCHÄFTSBEDINGUNGEN Diese Allgemeinen Geschäftsbedingungen ("AGB") regeln den Verkauf von Produkten durch die Avient Corporation und ihre Tochtergesellschaften ("Verkäufer") an eine andere Person ("Käufer"). 1. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms. 17.1 Der Verkäufer verbietet den Weiterverkauf des Produkts, es sei denn, der Verkäufer hat dies ausdrücklich schriftlich genehmigt.

Avient Colorants Indonesia Gatot Subroto Km. 4, Jl. Ltd. 30, Hsing Pang Road Taoyuan 33068 Taiwan Facility: Avient Colorants Thailand Ltd. Strydom Park 329 Thungsten Road Randburg 2194 South Africa Facility: Avient Colorants Spain S.A.

A Avient Corporation e as suas subsidiárias e afiliadas ("Avient") estão empenhadas em ser uma organização sustentável e de classe mundial. A Avient proíbe o suborno comercial ou as comissões. Externo comunicações sobre Avient requerem o consentimento prévio por escrito da Avient

Código de conducta para proveedores de Avient Avient Corporation y sus subsidiarias y filiales (“Avient”) se comprometen a ser una organización sostenible de categoría mundial. Avient prohíbe el soborno comercial o las comisiones ilícitas. Las comunicaciones externas sobre Avient requieren el consentimiento previo por escrito de Avient

Avient Corporation 4 Obtain 40% of electricity demand from renewable sources. 100% of technology platform projects will deliver sustainable solutions. Assess top 90% of supplier spend for alignment with Avient Sustainability objectives. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 SUSTAINABILITY TARGETS Avient Corporation 5 PRODUCTS 8 W A Y S W E H E L P C U S T O M E R S B E M O R E S U S T A I N A B L E TRENDS IN FOCUS Avient Corporation 6 RECYCLING / CIRCULAR ECONOMY LIGHTWEIGHTING ECO-CONSCIOUS SUSTAINABLE SOLUTIONS FOR THE CIRCULAR ECONOMY Avient Corporation 7 OPTICA™ TONERS FOR PET LACTRA™ SX LIGHT BLOCKING ADDITIVE FOR PET AMOSORB™ OXYGEN SCAVENGER FOR PET JOULE™ & SMARTHEAT™ INFRARED ABSORBER ULTIMATE™ UV LIGHT BARRIER CESA®-NATUR BIO-SOURCED ADDITIVES TRIPLE A™ ACETALDEHYDE SCAVENGER FOR PET IR SORTABLE BLACK FOR RECYCLABLE PACKAGING EZE™ SLIP AGENT FOR PET ONCOLOR™ NATURALS – COLORANTS FOR RECYCLABLE PACKAGING RESOUND™ OM THERMOPLASTIC ELASTOMERS VERSAFLEX™ POST- CONSUMER RECYCLED (PCR) TPE FORMULATIONS AVIENT CYCLEWORKS I N N O V A T I O N C E N T E R T O A D V A N C E T H E C I R C U L A R E C O N O M Y • Laboratory mimics real-world circular recycling in a research environment • Conducts chemistry testing to improve plastics recycling for customers • Screening and evaluation of additive and colorant systems during recycling • Collaboration platform for customers and value chain partners Avient Corporation 8 Avient Corporation 9 AVIENT ENABLES CUSTOMERS’ CIRCULAR ECONOMY GOALS C O L O R M A T R I X ™ P R O C E S S A I D & T O N E R F O R R E C Y C L E D P E T LIGHTWEIGHTING Avient Corporation 10 NYMAX™ NYLON FORMULATIONS HYDROCEROL® CHEMICAL FOAMING AGENTS POLYSTRAND™ TAPES AND LAMINATES COMPLĒT™ LFT ENGINEERED RESINS W H AT ’S H AP P E N IN G AV IE N T S O LU T IO N S PLASTICS ARE: AVIENT SOLUTIONS ENABLE LIGHTWEIGHT DASHBOARD SKINS H Y D R O C E R O L ® F O A M I N G A G E N T S O L U T I O N S Avient Corporation 11 ECO-CONSCIOUS Avient Corporation 12 ONCOLOR™ BRILLIANT METALLIC COLORANTS W H AT ’S H AP P E N IN G ONCOLOR™ WPC CAPSTOCK TECHNOLOGY ZODIAC™ AQUARIUS™ WATER BASED SCREEN PRINTING INKS MAGIQ™ FIBER COLORANTS & ADDITIVES SAFER & CLEANER MATERIALS RESOURCE CONSERVATION HUMAN HEALTH & SAFETY ECO-CONSCIOUS ALTERNATIVES AV I E N T S O LU T IO N S AVIENT ECO-CONSCIOUS SOLUTIONS IMPROVE FACE MASK PERFORMANCE Avient Corporation 13 M A G I Q ™ E L E C T R E T P L U S T E C H N O L O G Y Improved filtration efficiency Protects against aerosols & bacteria particles Increased shelf-life ENERGY INTENSITY 9% WASTE INTENSITY 2% WATER INTENSITY 20% TOTAL CO2 EMISSIONS 29% PLANET K E Y P E R F O R M A N C E I N D I C A T O R S 2 0 1 6 - 2 0 1 9 56 ENERGY REDUCTION PROJECTS SAVE 7400+ MT/CO2 ANNUALLY PUNE, INDIAASSESSE, BELGIUM Avient Corporation 14 • Avient is a founding member • Cross value chain collaboration • Driving breakthrough innovations REVENUE FROM SUSTAINABLE SOLUTIONS 2016 2017 2018 2019 2020PF VOC Reduction Reduced Energy Use Bio-derived Content Eco-conscious Renewable Energy Applications Recyclability Reduced Material Requirements Lightweighting $275M $325M $355M $410M $560M (1) Proforma to include a full year of Clariant Masterbatch business acquisitionAvient Corporation 16 Revenue from sustainable solutions expected grow at an 8-12% CAGR into the future (1) THANK YOU Avient Corporation 17

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