Microsoft Word - AvientRY 2021 CDP Verification Opinion Declaration_07-26-22r WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com 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.

Microsoft Word - Avient_RY 2022 CDP Verification Opinion Declaration_07-24-23 WATER RESOURCES • ENVIRONMENTAL SERVICES • HEALTH & SAFETY • CLIMATE CHANGE Apex Companies, LLC • (800) 733-2739 • www.apexcos.com 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.

Microsoft Word - AVNT-2024.06.30-News Release (for PR) 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2024 Results • Second quarter sales grew to $850 million, a 3% increase over the prior year quarter and a 5% organic increase when excluding the impact of foreign exchange • Second quarter GAAP EPS from continuing operations of $0.36 compared to $0.24 in the prior year quarter • Second quarter adjusted EPS of $0.76 exceeded guidance of $0.71 and increased 21% over prior year quarter, driven by organic revenue growth in all regions, favorable input costs and lower interest expense • Increasing 2024 full-year adjusted EPS guidance range to $2.55 to $2.70, from prior guidance of $2.50 to $2.65 given strong second quarter results; Revised guidance reflects 8% to 14% growth in adjusted EPS over the prior year • 2023 Sustainability Report published online, detailing progress toward 2030 Sustainability Goals and ESG performance ratings • Investor Day to be held December 4th in New York City to highlight the company strategy CLEVELAND – August 6, 2024 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, today announced its second quarter 2024 results. A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/pyh3w2ip/ https://www.avient.com/investors https://register.vevent.com/register/BId7a8a09515a442e9b13c4d5558d927fe https://www.avient.com/investors/events-presentations 4 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. For more information, visit https://www.avient.com/. 5 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

The other method is via UV absorption.

Microsoft PowerPoint - AVNT Q3 2021 Earnings Presentation - WEBSITE AVIENT CORPORATION T H I R D Q U A R T E R 2 0 2 1 R E S U LT S (NYSE: AVNT) O C T O B E R 2 8 , 2 0 2 1 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 23 1.

KEY CHARACTERISTICS • Excellent lot-to-lot and within-lot consistency for high-quality homogeneous black shades • Easy processing and support of a long-lasting spin pack lifetime • Fastness properties and specification tolerances on par with high-end products on the market • Standard and bluish undertones available in high pigment loadings for an efficient and competitive coloration package • Can be combined with additives into a single combination concentrate for convenience • Compliance with global, regional, and local standards and regulations* RECOMMENDED USE • In most cases, the concentrate is added directly to the resin using gravimetric or volumetric dosing units; for some processes, the concentrate can be added via a side stream extruder (direct spinning) • The recommended dosages are from 3% for the typical automotive, technical, and carpet applications and up to 6% for apparel, footwear, and home textile yarns * Contact your local sales representative for more information on regulatory compliance PRODUCT BULLETIN Copyright © 2022, Avient Corporation.

Hanna Company. http://www.avient.com/contact/global-directory-and-contacts http://www.avient.com/ https://www.avient.com/sites/default/files/resources/PolyOne%2520Code%2520of%2520Conduct_0.pdf https://www.avient.com/sites/default/files/resources/PolyOne%2520Code%2520of%2520Conduct_0.pdf http://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement http://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement http://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement Approved Corporate : Template/Form Document #: DOC-01879 Revision: 8 Document Owners: Brian Hoar Effective Date: May 13, 2022 Title: QF-02 Quality Standard Response Page 10 of 19 Only the electronic version of this document in ETQ is the controlled version of the document. Avient’s No Surprises Pledge https://www.avient.com/company/sustainability/product/no- surprises-pledge https://www.avient.com/company/policies-and-governance/it-systems-use-policy https://www.avient.com/company/policies-and-governance/it-systems-use-policy https://www.avient.com/company/sustainability/planet/responsible-care https://www.avient.com/company/sustainability/planet/responsible-care https://www.avient.com/company/sustainability/product/no-surprises-pledge https://www.avient.com/company/sustainability/product/no-surprises-pledge Approved Corporate : Template/Form Document #: DOC-01879 Revision: 8 Document Owners: Brian Hoar Effective Date: May 13, 2022 Title: QF-02 Quality Standard Response Page 11 of 19 Only the electronic version of this document in ETQ is the controlled version of the document. Yes; via Supply Chain & Customer Service Are there written policies and procedures covering complaint investigations?

The second acquired business, Polystrand, operates on the leading edge of continuous reinforced thermoplastic composite technology, a next generation material science that delivers the high strength and lightweight characteristics of composites, further enhanced with the design flexibility to form more complex shapes.

TPEs that are ideal for healthcare, consumer goods and cutting-edge electronics such as wearables

TPEs that are ideal for healthcare, consumer goods and cutting-edge electronics such as wearables