– February 6, 2018 – At Medical Design and Manufacturing (MD&M) West this week, PolyOne is highlighting its extensive portfolio of polymers and colorants for the healthcare industry while also featuring the experts who stand behind the technology. Expanded resin families are able to incorporate biocompatible colorants and additives including nylon, polypropylene, and polystyrene. PolyOne is exhibiting at MD&M West in Anaheim, California, in booth 2101 from February 6-8, 2018.

Idea Polyketone, a Next-Generation Sustainable Nylon Alternative Read

Strong and seamless adhesion to polyester and nylon fabrics

FIBER OPTICAL CABLES Key Features • Rip through any material, including steel armor • High strength to diameter ratio • Lubricated for easy ripping • Colors available for easy identification • Long continuous lengths per spool FIBER-LINE® FIBERS FOR RIPCORDS • Kevlar® Para-Aramid • Vectran® Liquid Crystal Polymer (LCP) • PET Polyester • Nylon Polyamide • Technora® FIBER-LINE® PERFORMANCE ADDING COATINGS • FIBER-LINE® WearcoatTM: Lubricity for fast and easy removal • FIBER-LINE® BlockcoatTM: Anti-wick/Non-wick water penetration & snag resistance • FIBER-LINE® RepelcoatTM: Water Repellency • FIBER-LINE® Swellcoat®: Water Absorbing Protection • FIBER-LINE® Swellcoat® Blocker: Block Water Migration • FIBER-LINE® ColorcoatTM: Color identification for easy tracking Overview • FIBER-LINE® has over 25 years of experience in producing ripcords for the optical fiber cable market.

When overmolded, GLS TPEs bond permanently and seamlessly to many different plastic substrates, including polypropylene (PP), polycarbonate (PC), acrylonitrile-butadiene- styrene (ABS), PC/ABS, copolyester, polyamide (nylon) and polystyrene (PS).

& Canada 64% 36% Specialty Engineered Materials Color Additives and Inks 40% 37% 18% 9% 4% 4% Building & Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. GUIDANCE $800 $754 $128 $123 Sales Adjusted EBITDA $0.56 $0.57 13 • Demand impacted by destocking and cautious customer sentiment • Positive net price benefit: o CAI - Pricing flat and raw material deflation o SEM - Pricing flat with unfavorable mix related to healthcare, more than offset with raw material deflation • Cost reductions driven by Clariant synergies and reduced administrative costs Q3 EBITDA BRIDGE ($ millions) CAI: Price / Mix -) Deflation 22) SEM: Price / Mix (6) Deflation 13) Net Price Benefit 29) Cost Reductions 13) Wage Inflation (8) FX 1) Q3 2023 Actual $ 123) Adjusted EBITDA Q3 2022 Pro Forma $ 137) Demand (49) 14 2023 G U I DAN CE Q4 2023 GUIDANCE VS. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA $0.42 $0.47 2022 PF 2023 - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 $0.47 Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Sales Adjusted EBITDA Adjusted EPS 17 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 S U S TAI NABI L I T Y DAY RE CAP SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 21 • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 22 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 23 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,130 and estimated run-rate CAPEX of $110M. 26 3.5 1.8 2.7 3.1 3.3 3.7 3.0 3.7 4.7 4.8 6.8 6.8 8.7 11.1 Av ie nt AV PM FM N C FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Fiber-specific flame retardant systems for PP, PES and PA (nylon) fibers that can be combined with color Additive concentrates that impart fast and durable water repellency and IPA repellency grade 6 to PP nonwovens Nylon Carpet for Carpet Producer

Use of existing tooling = lower capital costs: API was able to use the same mold originally designed for nylon to run the Gravi-Tech materials, saving the substantial costs of retooling.

Versaflex™ TF Adhesive TPEs for Textile Fabrics: a cost-effective alternative compared to traditional thermoplastic polyurethane (TPU) adhesive films and traditional glues, offering a low VOC and non-intentionally added plasticizers, combining strong and seamless adhesion to polyester and nylon fabrics with outstanding elastic recovery for high wearing comfort Bergamid™ FR Non-Halogen Flame Retardant Formulations: specially formulated for high-voltage connectors in a safety orange color, these materials combine the application flexibility of high-flow nylons for thin-wall designs with the performance of a non-halogenated fire retardant system, available in unfilled or reinforced PA6, PA66 and PA 6/66 grades with UL 94 V0 and CTI 800+ ratings  

Complēt™ Moisture Resistant Nylons