PX-V-142;M3103-UV BASE COOL GRAY 6 D3281 GREY UV 713C ORANGE IN HDPE

Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 26 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Formulators Other Chemical/Specialty Companies 2 3 2 2 2 3 3 4 3 3 4 4 4 5 5 5 5 6 7 8 23 A vi e nt A vi e nt ( E xc l. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 84% Median: 78% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $560M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of June 4, 2021 87 89 87 86 83 81 76 88 85 83 82 81 80 78 78 78 76 72 71 69 50 18 A vi en t K W R P P G R P M A V Y F U L G C P F M C H X L U N V R IF F E C L A S H F O E C E E M N B N R H U N G R A K R A S C L A L B Source: Peer data per Bloomberg market data as of June 4, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the majority of our chemical peers. 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. 28 Avient reflects 2021 estimated EBITDA of $560M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 10.4 18.2 16.0 15.5 15.3 11.3 11.0 29.7 26.5 23.5 18.2 13.4 11.9 11.9 11.7 10.5 10.4 10.3 10.1 9.7 7.7 6.5 A vi en t K W R A V Y P P G R P M F U L G C P H X L A L B E C L IF F F M C B N R A S H G R A E M N F O E S C L U N V R C E K R A H U N Median: 11.7xMedian: 15.4x SUMMARY: WHY INVEST IN AVIENT?

050BU2039 PE UV CYAN UV SLEET GRAY 6% 411-104 GRAY HDPE

GRAY 430C PP UV WHITE MC-73152PE DK PURPLE HDPE

GRAY YELLOW MB HDPE UV GREY ABS V2

14778-01 EXPLC500 GRAY BLACK HDPE DK GREY 430C NO UV

UV KURLYAMA BLUE-F SILVER 877 HDPE SOPLO 141796-01 EXPC80F2 GRAY

PEARL GRAY 1128 BLUE HDPE DB3835 PIPER GRAY

Fence Gray (3) No UV FDM 64540 BL HDPE MASTERBATCH GRAY 877-C

UV attack by sunlight can be prevented by adding UV stabilizers to polymeric materials. LSR is inherently UV resistant and will not degrade when exposed to UV. For these reasons alone, LSR is often the natural choice for everything from medical instruments to FDA Class III and USP Class VI implant products, including catheters, gastric feeding tubes, heart valves and stents.