Ultimate UV technical data sheet and product information

We maintain data related to the environmental, health and safety of our products in our product stewardship database. Through this data, we create safety data sheets, customer certification statements and product safety improvements. Data from Clariant Masterbatch is excluded from this report as it is outside of the reporting period.

We maintain data related to the environmental, health and safety of our products in our product stewardship database. Through this data, we create safety data sheets, customer certification statements and product safety improvements. Data from Clariant Masterbatch is excluded from this report as it is outside of the reporting period.

Product information and technical data sheet for ColorMatrix™ TripleA™ additive technology, which reduces Acetaldehyde levels in PET packaging Mevopur™ Healthcare Functional Additives Mevopur™ Bio-based Polymer Solutions

Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”). Operating Income $3,783 $4,100 2020PF 2021E Adjusted EPS (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,300 2020PF 2021E $308 $360 2020PF 2021E $308 $410 2020PF 2021E $1.93 $2.40 2020PF 2021E $1.93 $2.80 2020PF 2021E (1) (1)(1) (1)(1) (1) (in millions) (in millions) 12 BALANCE SHEET • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x 2019PF 2020PF 2021E Net Debt / Adjusted EBITDA (1) (1) ($ in millions) 2021E Adjusted EBITDA 560$ Free Cash Flow 275$ Total Debt 1,860 Less: Cash (800) Net Debt 1,060$ 2021E Net Debt / Adjusted EBITDA 1.9x (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SUSTAINABILITY • Most recent Sustainability report substantially expanded disclosure on key environmental and social topics. • Aligned with leading reporting frameworks – GRI, SASB, TCFD. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 84% Median: 77% 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 April 27, 2021 87 89 87 86 82 81 76 88 87 84 82 81 78 77 77 77 76 73 70 69 50 19 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 IF F H X L U N V R E C L A S H C E B N R F O E E M N G R A H U N K R A S C L A L B Source: Peer data per Bloomberg market data as of April 27, 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.

These safety engagement activities can range from submitting a safety suggestion, identifying a hazard to leading a safety meeting or helping a customer with a safety issue. We maintain data related to the environmental, health and safety of our products in our product stewardship database. Through this data, we create safety data sheets and customer certification statements for intended use and product safety improvements.

We are better together through: Keeping Safety First — PolyOne and Clariant are both ACC Responsible Care® companies, and nothing is more important than the health, safety and well-being of our people. Clariant MB acquired July 1, 2020 COLORWORKS INSPIRATION. 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.

Keeping Safety First – and Clariant are both ACC Responsible Care® companies, and nothing is more important than the health, safety and well-being of our people. Clariant masterbatch

Human Health & Safety MEVOPUR™ Needle Hub Mevopur™ Pharma Packaging

Mevopur™ Healthcare Functional Additives Human Health & Safety Mevopur™ Polymer Colorants and Additives