All Rights Reserved 2025 Q1 2025 highlights Q1 2025 results Q1 2025 VS. All Rights Reserved 2025 4 Q1 2025 organic revenue growth - by region (3%) +2% +9% +17% Year-over-year revenue growth, excludes the impact of foreign exchange US & Canada Europe, Middle East & Africa Asia Latin America 5Copyright © . EBITDA - full year 2025 $540 to 570M +4% to +10% growth excluding FX ADJ.

Aug 01, 2025 Jul 10, 2025 Jul 07, 2025

All Rights Reserved 2025 Q2 2025 highlights Q2 2025 results Q2 2025 VS. FX +4% As Reported +4% Excl. EBITDA - full year 2025 $545 to 560M +4% to +6% growth excluding FX ADJ.

DNU V7822 FOOD CLOSURE DNU V7885 FOOD CLOSURE MNE31-6-4 BLACK HOT DIP

January 19, 2018 Aug 01, 2025 Jul 10, 2025

July 19, 2023 Aug 01, 2025 Jul 10, 2025

June 19, 2024 Aug 01, 2025 Jul 10, 2025

October 19, 2021 Aug 01, 2025 Jul 10, 2025

Both parts are made of silica/glass or polymer 4. Binder • PET, Polyester, Kevlar yarns coated with Swellcoat (absorbs and blocks water) 2 3 4 5 7 6 8 9. Cable jacket/sheath– Made of PE 9 Fiber-Line Product PolyOne Materials F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 21 5G Networks  Enable lower latency, greater flexibility & efficiency  Installation of these networks are in the very early stages  Installation will start in urban hubs and will continue to expand into suburban and rural areas  By 2025, only 14% of the world will have 5G connections  Growth is expected over multi- year period 5G technology will be a leading growth driver in fiber optic cable for several years 10x Speed Increase & 8x More Antennae Required 5G vs. 4G PolyOne Corporation 22 Safety Technology Geography Service FinancialPeople Low EH&S risk profile New and complementary technologies Leverage our global footprint Strong customer relationships Foundational operating margins of 8-10% with ability to double Motivated team with a specialty culture I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 23 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First!

Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation HQ 33587 Walker Road Avon Lake, OH 44012 U.S.A. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Bethel, CT 19 Francis J Clark Circle Bethel, CT 06801 U.S.A. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Lahore, Pakistan Plot no. 135, Kitaar, Bund Road Off Multan Road, Thokar Niaz Baig.