Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $635M and estimated CAPEX of $90M (excludes IT system upgrade of $25M and synergy capture CAPEX of $20M) Source: Peer data per Bloomberg market data as of February 15, 2022 86 89 85 80 76 76 89 85 79 78 76 76 76 70 69 63 8 A vi e nt K W R P P G F U L A V Y R P M F M C U N V R H U N B N R H X L E C L C E A S H E M N S C L A LB Source: Peer data per Bloomberg market data as of February 15, 2022 Total Enterprise Value / 2022E EBITDAWith the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets.

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?

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. 24 Avient reflects 2021 estimated EBITDA of $510M OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 21.1 13.2 13.2 12.0 12.0 9.7 25.2 23.1 14.7 13.5 12.9 11.0 11.0 11.0 10.2 9.6 9.3 9.3 9.1 8.6 8.3 A vi en t K W R A V Y R P M G C P P P G F U L A L B E C L H X L IF F F M C G R A B N R F O E A S H C E S C L U N V R E M N H U N K R A Median: 11.0xMedian: 12.6x SUMMARY: WHY INVEST IN AVIENT?

Various techniques as appropriate to the situation but generally including: Correlation & regression analysis, pareto charting, fish-bone diagrams, Pp/Ppk/Cpk analysis, Control Charting, Statistical Studies of uncertainty in test results due to process, sampling and test variability (R&R), Uncertainty budgeting, Round-robin testing of control samples, proficiency testing, DFMEA & FMEA, Control plans, Process mapping & value stream mapping, Lean Six Sigma techniques, 5S, Formal Vendor Evaluation programs, tracking of vendor performance, vendor audits, customer visits, customer surveys, customer focus groups, etc. 6.

PP OW PURPLE PP BLUE 2154C III PG 323590.00 PK PP

FUCSIA PP WHITE PP YELLOW PP

GREY PP GREEN PP RED PP

LIME GREEN 173218 PP PEARL WHITE PP LIGHT MAUVE PP

PG 311016.00 GN PP PG 311022.00 BU PP PINK 1767 PP

Additives and Colorants for PP-R and PP-RCT Pipe Systems PP-R and PP-RCT Pipe & Fittings Matched color references in concentrates suitable for PP-R and PP-RCT