AVNT-2021.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for December 9th Investor Day CLEVELAND – November 3, 2021 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, will host an Investor Day for investment professionals on Thursday, December 9, 2021, from 8:00 a.m. to 1:00 p.m., at the New York Marriott Marquis hotel. Investor Day participants will hear presentations from Mr.

Utilizing existing pipe systems enables the transition from natural gas to hydrogen delivery quickly and economically. This company designed an internal pipeline applicator to reinforce the pipe from the inside to handle the new pressure demands of hydrogen.

Key Features • Choose from single twisted fibers or cords • Properly tensioned and torque balanced • Twist level optimization for strength or flex fatigue resistance • 50 – 300,000 denier range capability • Hybrid products also available FIBER-LINE® FIBERS SUITABLE FOR TWISTING • Kevlar® Para-Aramid • Nomex® Meta-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • Technora® • PET Polyester FIBER-LINE® PRODUCTS ADDED BY TWISTING • Ripcords • Strength Members • Drive Belt & Hose Reinforcement • Industrial Fabric Yarn • Wire Harness Yarn TWISTING FIBERS PROCESSES PRODUCTS Overview FIBER-LINE® has the ability to custom twist an endless amount of different twist levels on a variety of high performance synthetic fibers. No freedom from any patents or other industrial or intellectual property rights is granted or to be inferred.

Kedrowski Page 38 Operational Excellence • Operational Excellence is a never-ending quest for improvement in response to the voice of our customers and shareholders • It is all about strengthening our capabilities to deliver value flawlessly to our customers deliver value flawlessly to our customers • It challenges us to enhance our productivity, profitability, and efficiency in all phases of our business, from safety to quality to waste elimination to environmental stewardship Page 39 Lean Six Sigma Initiative • In 2009, Lean Six Sigma was launched to improve execution skills across all businesses, functions, and global regions • A company-wide diagnostic was conducted, resulting in identification of six conducted, resulting in identification of six strategic improvement platforms • Financial targets were estimated, resources identified and trained results delivered , Page 40 PolyOne OSHA Recordable Incidence Rate 4 5 6 5.1 Safety Performance *Rubber And Plastics Manufacturing Industry (2010 Bureau of Labor Statistics). 0 1 2 3 2005 2006 2007 2008 2009 2010 2011 Industry Average 1.4 1.3 1.1 1.1 0.85 0.65 0.57 Page 41 • Exemplary on-time delivery • Best-in-class working capital % of sales 81% 87% 88% 95% 93% 92% 94% 2005 2006 2007 2008 2009 2010 2011 On-Time Delivery* Lean Six Sigma Delivering Results • Approximately $200M in cash driven by working capital improvements 16.2% 14.4% 18.9% 11.7% 9.6% 9.6% 2006 2007 2008 2009 2010 2011 WC % of Sales 2005 2006 2007 2008 2009 2010 2011 *As measured to customer request date Page 42 40.0% Percent of Associates Trained in LSS World’s Best Start-up Program in 2009* World’s Best Business Process Excellence Program in 2012* Award-Winning Lean Six Sigma Program *Both awards received from International Quality and Productivity Center 16.5% 40.0% 2009 2011 Page 43 • Globally leverage strategic supplier management best practices • Implement world class demand management processes Critical Imperatives • Improve operational reliability and efficiencies • Optimize global freight management Drive 50 – 100 basis points of gross margin expansion per year Page 44 Page 45

Our Enterprise Resource Planning (ERP) system allows us to have full traceability from raw material to finished goods linked to production conditions and test results. The sites have established a traceability system that tracks components from raw material through inspection, test, and final release. The site has established a traceability system that tracks components from raw material through production, inspection, test, and final release operations.

Any additional, different or other terms and/or conditions contained in any purchase order, document, website or other communication by or from Buyer are hereby objected to and rejected by Seller. If a present or future law, governmental decree, order, regulation, or ruling under any existing or future legislation prevents Seller from increasing or revising the price as provided in the contract, or nullifies or reduces any price or price increase hereunder, upon written notice from one to the other, Seller and Buyer will attempt to identify mutually agreeable changes to conform the contract with such law, decree, order, regulation, or ruling. Buyer shall not (re-) export or (re-) transfer or disclose, directly or indirectly, any of the Products or Items supplied by Seller and/or any Items incorporating or processed from such Products, in breach of any Trade Control laws, or, in the event an export license or other approval is required from any governmental authority or agency, without first obtaining such license or approval.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Any additional, different or other terms and/or conditions contained in any purchase order, document, website or other communication by or from Buyer are hereby objected to and rejected by Seller. Buyer shall not (re-) export or (re-) transfer or disclose, directly or indirectly, any of the Products or Items supplied by Seller and/or any Items incorporating or processed from such Products, in breach of any Trade Control Laws, or, in the event an export license or other approval is required from any governmental authority or agency, without first obtaining such license or approval.

Any additional, different or other terms and/or conditions contained in any purchase order, document, website or other communication by or from Buyer are hereby objected to and rejected by Seller. If a present or future law, governmental decree, order, regulation, or ruling under any existing or future legislation prevents Seller from increasing or revising the price as provided herein, or nullifies or reduces any price or price increase hereunder, upon written notice from one to the other, Seller and Buyer will attempt to identify mutually agreeable changes to conform this contract with such law, decree, order, regulation, or ruling. Buyer shall not (re-) export or (re-) transfer or disclose, directly or indirectly, any of the Products or Items supplied by Seller and/or any Items incorporating or processed from such Products, in breach of any Trade Control laws, or, in the event an export license or other approval is required from any governmental authority or agency, without first obtaining such license or approval.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Any additional, different or other terms and/or conditions contained in any purchase order, document, website or other communication by or from Buyer are hereby objected to and rejected by Seller. Buyer shall not (re-) export or (re-) transfer or disclose, directly or indirectly, any of the Products or Items supplied by Seller and/or any Items incorporating or processed from such Products, in breach of any Trade Control laws, or, in the event an export license or other approval is required from any governmental authority or agency, without first obtaining such license or approval.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Any additional, different or other terms and/or conditions contained in any purchase order, document, website or other communication by or from Buyer are hereby objected to and rejected by Seller. Buyer shall not (re-) export or (re-) transfer or disclose, directly or indirectly, any of the Products or Items supplied by Seller and/or any Items incorporating or processed from such Products, in breach of any Trade Control laws, or, in the event an export license or other approval is required from any governmental authority or agency, without first obtaining such license or approval.