AFNOR M 2 in France, DIN 4102 B 2–B 1 in Germany, UNI 8457–9174 C 1 in Italy, BKZ 5.2 in Switzerland, BS 5852.1990 CRIB 3–5 in UK)** • Standard portfolio available for PP injection molded applications APPLICATION BULLETIN * Laboratory weathering testing may not be determinative of all conditions of use; the end user must determine suitability of a product for its intended use ** Contact us for more information on regulatory compliance Copyright © 2022, Avient Corporation.

Contact us at +1.844.4AVIENT or visit www.avient.com.

They are also very useful in a variety of other applications such as packaging, electronics or transportation.

To learn more about NEUSoft TPU formulations, contact us at +1.844.4AVIENT (1.844.428.4368).

Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Three Months Ended June 30, Six Months Ended June 30, Reconciliation to Consolidated Statements of Income 2021 2020 2021 2020 Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 Gross margin - GAAP 288.7 149.7 591.1 321.2 Special items in gross margin (Attachment 3) 12.6 (4.2) 10.4 (4.0) Adjusted gross margin $ 301.3 $ 145.5 $ 601.5 $ 317.2 Adjusted gross margin as a percent of sales 24.4 % 23.9 % 25.1 % 24.0 % Operating income - GAAP 108.1 38.0 228.5 90.8 Special items in operating income (Attachment 3) 14.2 9.0 16.6 18.7 Adjusted operating income $ 122.3 $ 47.0 $ 245.1 $ 109.5 Adjusted operating income as a percent of sales 9.9 % 7.7 % 10.2 % 8.3 % The table below reconciles pre-special income tax expense and the pre-special effective tax rate to their most comparable US GAAP figures.

Management excludes intangible asset amortization from adjusted EPS as it believes excluding acquired intangible asset amortization is a useful measure of current period earnings per share. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Three Months Ended Year Ended Reconciliation to Consolidated Statements of Income 2020 2019 2020 2019 Sales $ 997.0 $ 658.6 $ 3,242.1 $ 2,862.7 Gross margin - GAAP 252.9 153.3 784.3 657.2 Special items in gross margin (Attachment 3) 1.7 (0.8) 25.3 7.3 Adjusted Gross margin $ 254.6 $ 152.5 $ 809.6 $ 664.5 Adjusted Gross margin as a percent of sales 25.5 % 23.2 % 25.0 % 23.2 % Operating income - GAAP 65.0 20.5 189.3 156.8 Special items in operating income (Attachment 3) 14.6 24.6 73.7 71.7 Adjusted Operating income $ 79.6 $ 45.1 $ 263.0 $ 228.5 Adjusted Operating income as a percent of sales 8.0 % 6.8 % 8.1 % 8.0 % The table below reconciles pre-special income tax expense and the pre-special effective tax rate to their most comparable US GAAP figures.

Management excludes intangible asset amortization from adjusted EPS as it believes excluding acquired intangible asset amortization is a useful measure of current period earnings per share. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior period s without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Avient reflects 2022 estimated revenue of $5,100M and estimated CAPEX of $90M (excludes IT system upgrade of $25M and synergy capture CAPEX of $20M) Avient Specialty Other Free Cash Flow Conversion (1) 2022E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Senior management also uses operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

You may revoke your proxy before it is voted by giving notice to us in writing or orally at the meeting. Mink provides us wi hth valuable counsel related to her chemical and advanc ded materials background. All Directors are required to retain 100% of all shares obtained through us, as compensation for services provided to us, with such percentage to be calculated after any reduction in the number of shares to be delivered as a result of any taxes and exercise costs relating to the shares (if applicable).