Investor Day FERMIUM RESEARCH MARKETING TRIP D E C E M B E R 1 6 , 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. Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. 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 1) Special items are a non-GAAP financial measure and are used to determine adjusted earnings.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. 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 1) Special items are a non-GAAP financial measure and are used to determine adjusted earnings.

THERMOPLASTIC ELASTOMERS North America Portfolio PRODUCT SELECTION GUIDE Appearance Hardness Specific Food Contact UL 94 Suitable ASTM (Shore) ASTM reSound™ REC Recycled Content Series VX2800-9003 C Natural 47A 0.94 - - PP ✔ - 25% post-consumer recycled (PCR) content (PVB from windshields and laminated glass); 1.77 cradle-to-gate product carbon footprint (PCF) VX2800-9004 C Natural 54A 0.95 - - PP ✔ - 25% PCR content (PVB from windshields and laminated glass) VX2800-0001 I Black 65A 0.89 - - PP ✔ - 25% post-industrial recycled (PIR) content VX2800-0001 I Natural 65A 0.89 - - PP ✔ - 25% PIR content VX2800-0001 C Black 65A 0.89 - - PP ✔ - 25% PCR content (ocean plastics) VX2800-0002 I Black 65A 0.88 - - PP ✔ - 40% PIR content VX2800-0003 C Gray 65A 0.88 ✔ - PP ✔ - 25% PCR/PIR content (food packaging) with application specific FDA rating VX0100-0001 AR I Black 79A 1.05 - - PC, ABS, PC/ABS ✔ - 30% PIR content reSound™ BIO Bio-based Series RS7900-0001 30N Natural 31A 1.00 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS7900-0001 45N Natural 48A 1.11 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS7900-0001 60N Natural 59A 1.11 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS7900-0001 70N Natural 69A 1.09 - - PP ✔ - 35% bio-derived content (Gen 1 biomass) RS2800-0001 30N Natural 33A 0.85 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) RS2800-0001 45N Natural 49A 0.85 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) RS2800-0001 60N Natural 63A 0.87 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) RS2800-0001 70N Natural 71A 0.86 - - PP ✔ - 50–60% bio-derived content (Gen 1 biomass) reSound™ Ultra-Low Carbon Footprint Series RS0200-9001 80 Natural 80A 0.87 - - PP, LDPE ✔ - -0.40 cradle-to-gate PCF RS0200-9001 60 Natural 60A 0.86 - - PP, LDPE ✔ - -0.03 cradle-to-gate PCF Avient’s specialty thermoplastic elastomers (TPEs) are formulated to meet countless performance, application and aesthetic demands. Backed by decades of TPE expertise, our team can help you choose the best polymer for your product or customize a material to meet your specific challenges. Testing is on a scale of 1–10 (low-high odor) 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

Trilliant XR - CT and MRI Scanners MEDICAL DEVICE MANUFACTURER M R I A N D C T S C A N N E R S • Uniform shielding with no “hot spots” • X-ray shielding up to 140 KeV • Meet European Union’s Restriction of Hazardous Substances (RoHS) future compliance requirements • Provided a lead alternative solution that delivered improved geometric flexibility for more uniform radiation shielding • Lowered shielding component costs 30-50% by eliminating machining and assembly steps Trilliant™ XR Lead Replacement Thermoplastics KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations-1

Figure 1. Picture of plaques originally made from preforms containing Fortis Amber-1 and Amosorb Solo2-2. This could represent an opportunity for the value chain looking into introducing bottles-to-bottles back to their original standard.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. 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. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. 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 Senior management uses adjusted operating income, adjusted EPS, and working capital to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

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AVNT-2021.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for December 9th Investor Day CLEVELAND – November 3, 2021 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, will host an Investor Day for investment professionals on Thursday, December 9, 2021, from 8:00 a.m. to 1:00 p.m., at the New York Marriott Marquis hotel. In addition, the company will provide an update on the integration of the Clariant Color business, including future synergy capture, and a financial overview. Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.