The Company highlighted that integration of the Clariant Masterbatch business is continuing to exceed expectations. The Company noted it will provide more details on its 2021 outlook during the webcast scheduled for 9:00 a.m. There will be a question and answer section following the company’s prepared remarks.

Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. For the same reasons, the Company is unable to address the probable significance of the unavailable information. To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of CMB for periods prior to the Acquisition Date.

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B&C COMPANY L I V I N G W A L L P L A N T E R • Non-halogen flame retardant formulation • SBI fire test rating of B-S2-D0 • Good durability and UV stability • Easy to process • Good cost/performance • Provided an optimal balance of fire safety and durability • Improved environmental responsibility for construction application • Supported the appealing design and surface aesthetic Maxxam NHFR Non-Halogen Flame Retardant Polyolefin Formulation KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-formulations-and-maxxam-nhfr-non-halogen-flame-retardant-formulations Slide 1: B&C company

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. GUIDANCE (TOTAL COMPANY) 11 $710 $719 Guidance Actual $112 $114 Guidance Actual Sales Adjusted EBITDA (in millions) $0.47 $0.52 Guidance Actual Adjusted EPS (in millions) 13.5% 15.9% 2022 2023 Results vs. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

ECO-CONSCIOUS FLEXIBLE FOAM GUN GRIP SLEEVES HIT THE MARK ECO-CONSCIOUS PLASTISOLS IMPROVE THE FIREARM EXPERIENCE AND MEET GUIDELINES THE CHALLENGE EZR Sport® is an American company specializing in grips for industrial & military manufacturers since 1964. In creating the EZR Gauntlet® System, the company aims to provide custom-fit gun grip sleeves that improve performance and confidence when handling a firearm. THE IMPACT By using Avient’s CORE formulation combined with the proprietary manufacturing process from EZR Sport, the companies created an exceptional foam cell structure, providing excellent shock absorption with a cushioning effect for steady hand placement.

THE SOLUTION The company’s product management team reached out to Avient’s Gordon Composites group to identify an alternative spring solution. Working together to understand the unique requirements for the company’s conveyor application, the engineering team at Avient developed customized flat springs that provide more consistent quality and longer fatigue life than the original components, improving conveyor performance and longevity. THE IMPACT Not only did the Gordon Composites vibratory springs outperform the company’s originally specified spring components, they provided a number of additional benefits: Ready-to-install springs reduced labor and simplified installation Unlike alternative springs, Gordon Composites springs are factory machined to the required size and pre- drilled for a significant reduction in cutting and drilling processes and allowing valuable labor time to be allocated elsewhere.

To further complicate matters, the company was under a directive to bring lens production back to the United States to improve manufacturing efficiency. Sourcing materials from overseas made the company vulnerable to quality inconsistencies and long lead times. THE SOLUTION The company approached Avient with its challenge.

The Company noted it will provide more details on its 2021 outlook during the webcast scheduled for 9:00 a.m. Pro Forma The Company acquired the Clariant Masterbatch business (“CMB”) on July 1, 2020 (the “Acquisition Date”). There will be a question and answer session following the company’s presentation and prepared remarks.

VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. Armstrong-Friberg, Lead Verifier Scott Johnston, Technical Reviewer ESG Program Manager Principal Consultant Apex Companies, LLC. Apex Companies, LLC.