D is t. ) K W R P P G A V Y F U L R P M G C P H X L F M C H U N IF F E C L A S H K R A E M N C E S C L A LB Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of July 28, 2021 Avient reflects 2021 estimated revenue of $4,650M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 81% Median: 78% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $580M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of July 28, 2021 87 90 86 82 80 78 73 87 82 82 79 79 78 78 77 76 71 67 46 A vi en t K W R P P G A V Y F U L R P M G C P F M C U N V R C E IF F A S H E C L B N R E M N H X L H U N K R A S C L A L B (6) Source: Peer data per Bloomberg market data as of July 28, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the median of other selected chemical / specialty companies. With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 25 Avient reflects 2021 estimated EBITDA of $580M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 18.5 15.1 15.1 14.0 11.0 10.4 29.5 28.2 23.9 18.7 12.4 12.2 11.1 9.3 9.2 9.2 7.6 7.6 6.0 A vi en t K W R P P G A V Y R P M F U L G C P A L B H X L E C L IF F F M C B N R A S H S C L E M N U N V R K R A C E H U N Median: 11.1xMedian: 14.6x SUMMARY: WHY INVEST IN AVIENT?

CLEVELAND – High-performance Bergamid™ polymer solutions from PolyOne recently received Underwriters Laboratories’ UL 7

Avient assists in creating electronic connector for a new, low-cost computer to meet technical requirements, avoid over-engineering and meet cost-performance requirements with Bergamid™ nylon material

NYMAX™ AND BERGAMID™ RECLAIMED NYLON FORMULATIONS offer high strength, durability and impact resistance, all while enabling landfill waste reduction of >21M pounds since 2016, by providing an alternative use for post-industrial reclaimed nylon*. Integration and Investment Operating Income ($ in millions) +165% $36 To d ay A t A cq u is it io n $96 Operating Margins +900 bps 11% To d ay A t A cq u is it io n 20% Commercial Resources +40% 243 To d ay A t A cq u is it io n 340 Established Acquisitions (>7 years) 48 Sustainability Report | 2018 Invest to Grow Playbook Safety First! Patterson, Richard H.

BLUE BLUE XRH51652A EXP YOGA MAT PMS 646 U

PANTONE 432 U GRAY KDS ROYAL BLUE SWIRL STAN-TONE DB-15597 HI LITE BLUE

DB961C BLUE 299C HOCKEY PURPLE U STAN-TONE DB-15597 HI LITE BLUE

ROBIN EGG BLUE 5415C B70 U GREY 7035 STAN-TONE DB-15597 HI LITE BLUE

SC-2743 G BLUE SC-2751 U NATURAL STAN-TONE DB-15597 HI LITE BLUE

24035-U CLR SC-1020 G BLUE STAN-TONE DB-15597 HI LITE BLUE