All Rights Reserved 2025 12 Disciplined capital allocation PRIORITIZATION AND PHILOSHOPY Capex Expected annual spend between 3-5% of revenue to support investment in organic growth M&A De-emphasized in near term; complement organic growth strategy with M&A over time, as needed 1 2 Dividends Increasing each year with underlying earnings growth 3 Debt pay down Target net debt to adjusted EBITDA less than 2.5x 4 Share repurchases Opportunistic buy backs 5 1 Copyright © . ▲ U.S. consumer sentiment and GDP growth stays robust ▲ China trade war and tariffs de-escalate ▲ European economy improves due to increased infrastructure spend ▲ Continued strength in defense and healthcare markets ▼ Global trade uncertainty / volatility ▼ Persistent inflation and slowdown in global economies ▼ Supply chain disruptions resulting from global trade policy changes ▼ FX volatility ACCE LE R ATO RS DE CE LE RATO RS 24Copyright © . Reconciliation to condensed consolidated statements of income Three months ended March 31, 2025 2024 $ Millions EPS (in $) $ Millions EPS (in $) Net (loss) income attributable to Avient common shareholders (20.2) (0.22) 49.4 0.54 Special items, after-tax 75.7 0.82 5.5 0.06 Amortization expense, after-tax 14.5 0.16 14.9 0.16 Adjusted net income / EPS 70.0 0.76 69.8 0.76 Per share amounts may not recalculate from figures present herein due to rounding 11 1 Reconciliation to EBITDA and Adjusted EBITDA Three months ended March 31, 2025 2024 $ Millions $ Millions Net (loss) income – GAAP (19.9) 49.7 Income tax (benefit) expense (6.7) 16.8 Interest expense, net 26.9 26.6 Depreciation & amortization 45.3 44.3 EBITDA 45.6 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) - Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA 144.7 143.1 Adjusted EBITDA as a percent of sales 17.5% 17.3% PAGE 1 OF 3 Copyright © .

Three Months Ended Three Months Ended Three Months Ended

Lewiston, ME, 04240 United States of America / 3 Appendix Page 2 of 3 The validity of this appendix depends on the validity of the main certificate.

Thanks to robust online and retail sales, WO Design has been able to fund 1,000 school lunches in the first three months of its program.

The manufacturer expects to save more than $55,000 per year, achieving ROI for the new solution within 12 months.

The manufacturer expects to save more than $55,000 per year, achieving ROI for the new solution within 12 months.

Lactra ESL is versatile, catering to a range of dairy packaging applications that require mid-range light protection, and is useful for products with shelf-life requirements of up to three months.