They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. FX -1.5% FX -0.5% Total Avient -2.0% Q 1 2024 R ES U LT S Q1 2024 PERFORMANCE VS.

Or do you want an improvement in terms of www.avient.com Copyright © 2023, Avient Corporation. Processing conditions can cause material properties to shift from the values stated in the information.

Providing conditioned structural performance at levels between standard and specialty nylons, these composites are ideal for lightweighting initiatives in the automotive or powersports industries that rely on dependable materials with exceptional load carrying and fatigue resistant capabilities.  Avient Long Fiber Technology Avient long fiber technologies application development center bulletin highlighting services including design support, material validation, simulation support, and in-house prototyping

Processing conditions can cause material properties to shift from the values stated in the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. Avient is a premier provider of specialized and sustainable material solutions and services that transform customer challenges into opportunities.

NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for 2023 Sustainability Day CLEVELAND – August 28, 2023 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, has announced registration details for a virtual Sustainability Day for investment professionals on Wednesday, September 20, 2023, from 9 a.m. – 11 a.m. Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. We are excited to take a deep dive into our sustainability portfolio by sharing specific applications and technologies, as well as discussing the megatrends that will support sustainable solutions as a long-term growth driver.”

Processing conditions can cause material properties to shift from the values stated in the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

A sample of A-list companies from your Activity Group: AmorePacific Corporation Beiersdorf AG Borregaard ASA CDP SCORE REPORT - CLIMATE CHANGE 2023 Avient received an A- which is in the Leadership band. Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT ACTIVITY GROUP PERFORMANCE Chemicals A- Your CDP score Average performance B C C Chemicals North America Global Average *Please note that the peer group average scores are compiled with only investor- requested company scores Avient Region North America Country/Area United States of America Questionnaire Chemicals Activity Group Chemicals The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels.

CC_Score_Report_2021 ACTIVITY GROUP PERFORMANCE Trading, wholesale, distribution, rental & leasing Your company is amongst 49% of companies that reached Management level in your Activity Group A sample of A-list companies from your Activity Group: Grupo Logista Hyundai Glovis Co Ltd Avient received a B which is in the Management band. Leadership (A/A-): Implementing current best practices Management (B/B-): Taking coordinated action on climate issues Awareness (C/C-): Knowledge of impacts on, and of, climate issues Disclosure (D/D-): Transparent about climate issues UNDERSTANDING YOUR SCORE REPORT Avient Region North America Country United States of America Questionnaire Chemicals Activity Group Trading, wholesale, distribution, rental & leasing The CDP Score Report allows companies to understand their score and indicate which categories require attention to reach higher scoring levels. CDP SCORE REPORT - CLIMATE CHANGE 2021 Your CDP score Average performance B C C B- Trading, wholesale, distribution, rental & leasing North America Global Average CDP SCORE REPORT - CLIMATE CHANGE 2021 CATEGORY SCORES If a company scored C or below, they will not have been scored for management or leadership points (the dark purple line represents this).

ABS Quality Evaluations This is to certify that the Quality Management System of: Avient Corporation 4921 I D A Park Drive Lockport, NY 14094 U.S.A. IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 58976 Effective Date: 08 February 2019 Expiration Date: 09 August 2022 Revision Date: 17 November 2020 IATF No: 0349837 Dominic Townsend, President DESIGN AND MANUFACTURE OF THERMOPLASTIC COMPOUNDS (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations Avient Corporation IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Activity: Continuous Improvement, Contract Review, Customer Service, Human Resource, Information Technologies, Internal Audit Management, Logistics, Marketing, Product Design, Purchasing, Sales, Supplier Management

SPECIALTY INKS OVERVIEW PolyOne Specialty Inks is a leading global manufacturer of screen printing inks for the textile industry and of specialty inks for industrial applications. Our Wilflex and Rutland brands first emerged in the early 1960s, when screen printing on T-shirts was gaining popularity for self- expression, affording us global recognition, and allowing us to develop products making the screenprinting process easier, more attractive and more profitable. Processing conditions can cause material properties to shift from the values stated in the information.