Reflecting on his more than eight years as CEO of PolyOne, Mr. 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. They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales.

AVIENT CORPORATION T H I R D Q U A R T E R 2 0 2 3 R E S U L T S (NYSE: AVNT) N OV E M B E R 2 , 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. Prior Year 8 Q3 2023 PERFORMANCE VS.

All Rights Reserved 2024 3 Disclaimer Forward-looking statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All Rights Reserved 2024 41 Engineered materials Strength, stiffness Durability Purity Elasticity Fire retardancy Barrier properties Conductivity Color and UV stability Sustainability Processing ease Healthcare devices Semiconductor manufacturing Transportation TelecomWire and cable solutions Consumer goods Copyright © . All Rights Reserved 2024 49 Composites for electrification and energy BUILD NEW PLATFORMS OF SCALE • Increasing electrification demands, expanding grid • Established Avient portfolio in electrical infrastructure • Demand driven by aging electrical infrastructure and grid hardening incentives (e.g. 170 million wood poles over 50 years old in North America) • Creating opportunities in all infrastructure components • Avient differentiation is with operational velocity, manufacturing capability and added functionality with flame retardancy, UV resistance etc. $8B ADDRESSABLE MARKET AVIENT TECHNOLOGIES, SOLUTIONS Cross arms Turbine blade stiffeners Utility poles Insulator rods Copyright © .

$0.58 in the prior year first quarter In the prior year first quarter, special items were IQAP is off to a great start this year. 

Throughout the years, ink manufacturers have learned one unchanging truth: there is always a new fabric being developed for the market that will pose new challenges. Some performance garments, such as replica jerseys, may require multiple print locations, meaning they will see two or three passes through the oven.

As it has for almost two decades, a group of color and social trend experts from around the world convened for five days to identify four global trends that can be expected to influence consumers’ response to color over the next few years. Forecast to be as important an innovation as the internet, it promises to open up a whole new world that accommodates different means of human interaction as well as a potential escape from reality. 

We are pleased that our materials are contributing to a unique product that has received wide recognition in its first year on the market. The company was featured on Shark Tank and received the award for "Lean, Green and Mean Startup” at San Diego Entrepreneur Day.

PolyOne was formed on August 31, 2000 from the consolidation of The Geon Company (Geon) and M.A. Under this standard, a company recognizes revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Inventories External purchases of raw materials and finished goods are valued at weighted average cost.

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N S E P T E M B E R 2 0 1 9 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 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. They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales. 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 22 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 23 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 24 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!

However, a gate needs to be large enough to provide good packing. It also has a means of opening the mold and ejecting the part. This type of packing is what gives the part a good surface finish.