Continuous Fiber Composite Panels Polystrand™ Continuous Fiber Tapes & Laminates Continuous Fiber Reinforced Composites

Continuous Fiber Composite Panels Polystrand™ Continuous Fiber Tapes & Laminates Glasforms™ Continuous Filament Wound Tubes & Poles

Continuous Fiber Composite Panels Polystrand™ Continuous Fiber Tapes & Laminates Glasforms™ Continuous Filament Wound Tubes & Poles

Polystrand™ Continuous Fiber Tapes & Laminates Continuous Fiber Composite Panels Polystrand™ Continuous Fiber Tapes & Laminates

July 2024 HUMAN RIGHTS POLICY OUR COMMITMENT Avient is dedicated to conducting business ethically and with integrity, and our Human Rights Policy is part of our commitment to socially responsible business practices. Avient forbids the use of any form of child labor in connection with Avient’s business. We reserve the right to terminate the business relationship if a supplier fails to meet their obligations.

Beggs joined Avient in August 2020 and has more than 20 years of experience in finance and business leadership roles in both public and private organizations with an emphasis on specialty materials and diverse end markets. She previously served as Chief Financial Officer of Hunt Consolidated, Inc., a diversified holding company whose businesses served many industries including energy, real estate and private investments. Prior to Hunt, she worked for Celanese Corporation, where she served in a variety of finance and business positions, including Vice President and Corporate Treasurer, and earlier as Chief Financial Officer of the materials solutions business.

REINFORCED THERMOPLASTIC PIPE F O R O I L + G A S • Reinforcement for HDPE pipe to meet the performance of traditional steel pipe for oil and gas applications • Temperature performance up to 65˚C with operating pressure up to 1500 psi • Spoolable, lightweight material to simplify transport and installation • Provided material compatibility with HDPE and added reinforcement to meet burst strength requirements • Customized tape thickness to meet specific processing needs • Ensured supply chain reliability with fast delivery and quality control in North America • Flexible, reinforced plastic solution enabled spoolable pipe and reduced weight Polystrand™ Continuous Glass Fiber Reinforced Polyethylene Tape KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates

Microsoft PowerPoint - PolyOne Investor Presentation 5.4.20_v8 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • P E O P LE P RO D U CT S P LA N E T P E RF O R MAN C E •• •• •• JVs Performance Products & Solutions Distribution Specialty     To be the world’s premier provider of specialized polymer materials, services and solutions To be the world’s premier provider of specialized polymer materials, services and sustainable solutions • • • • • • • • • • • • • • 2016 2017 2018 2019 Lightweighting Reduced Material Requirements Improved Recyclability Renewable Energy Applications Eco-conscious Bio-derived Content Reduced Energy Use VOC Reduction $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth PolyOne Corporation 33 Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to PolyOne shareholders, excluding special items, to assess performance and facilitate comparability of results. Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 Joint venture equity earnings, after tax (19.0) (14.7) (3.7) — — — — — — — — — — — Special items, before tax(1) (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 Special items, tax adjustments(1) (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S). Reconciliation to Adjusted EPS Excluding Special Items and Impacts of February 2020 Equity Offering Three Months Ended March 31, 2020 Net income from continuing operations – GAAP $ 33.1 Special items, after tax(1) 8.6 After tax interest income earned on equity proceeds, included in Interest expense, net (0.7) Adjusted net income excluding special items and impact of interest income on equity proceeds $ 41.0 Diluted weighted-average shares used to compute earnings per common share 86.7 Weighted-average impact of 15.3 million shares issued in February 2020 equity offering (9.3) Diluted weighted-average shares excluding impact of shares issued in February 2020 equity offering 77.4 Adjusted EPS - excluding special items and the net impact of equity offering $ 0.53 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data)

Including the following remote support functions: Polyone Corporation 33587 Walker Road Avon Lake, OH 44012 USA Audited by ABS Quality evaluations Product Design, Purchasing, Customer Service and Strategic Planning Location Registered Activities BSI Certificate Number: 85585 IATF Number: 0315491 Certification Date: 2018-07-11 Latest Issue: 2018-07-11 Expiry Date: 2021-07-10 Page: 2 of 2 This certificate remains the property of BSI and shall be returned immediately upon request.

Planning now for transitions will help avoid supply chain disruptions in the future.