Gravi-Tech Density Modified Formulations - Design Guide for Luxury Closures How Gravi-Tech makes the difference for packaging closures in the luxury cosmetics and spirits markets Panels for Off-Road Vehicles

Avient Investor Day - December 4, 2024 Avient Q1 2025 Earnings - May 6, 2025  PolyOne Corporation at Credit Suisse Boston Basics Materials Conference

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 or PVC 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 20 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 21 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 22 Capture sourcing synergies Cross-sell & blend 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 Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First!

Gravi-Tech Density Modified Formulations - Design Guide for Luxury Closures How Gravi-Tech makes the difference for packaging closures in the luxury cosmetics and spirits markets Panels for Off-Road Vehicles

May 14, 2025 May 14, 2025 May 06, 2025

May 14, 2025 May 14, 2025 May 06, 2025

Fourth quarter and full year GAAP EPS from continuing operations of $(0.19) and $0.90  Fourth quarter and full year adjusted EPS fro

STAY SO FRO BEIGE GREEN 9593-GN-80 4

February 4, 2016 May 14, 2025 May 14, 2025

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.