Row 28 (9.3.1.1) Facility reference number Select from: ☑ Facility 71 (9.3.1.3) Value chain stage Select from: ☑ Direct operations (9.3.1.4) Dependencies, impacts, risks, and/or opportunities identified at this facility Select all that apply ☑ Risks 485 (9.3.1.5) Withdrawals or discharges in the reporting year Select from: ☑ Yes, withdrawals and discharges (9.3.1.7) Country/Area & River basin Germany ☑ Elbe River (9.3.1.8) Latitude 0 (9.3.1.9) Longitude 0 (9.3.1.10) Located in area with water stress Select from: ☑ No (9.3.1.13) Total water withdrawals at this facility (megaliters) 0 (9.3.1.14) Comparison of total withdrawals with previous reporting year Select from: ☑ About the same (9.3.1.15) Withdrawals from fresh surface water, including rainwater, water from wetlands, rivers and lakes 0 486 (9.3.1.16) Withdrawals from brackish surface water/seawater 0 (9.3.1.17) Withdrawals from groundwater - renewable 0 (9.3.1.18) Withdrawals from groundwater - non-renewable 0 (9.3.1.19) Withdrawals from produced/entrained water 0 (9.3.1.20) Withdrawals from third party sources 0 (9.3.1.21) Total water discharges at this facility (megaliters) 0 (9.3.1.22) Comparison of total discharges with previous reporting year Select from: ☑ About the same (9.3.1.23) Discharges to fresh surface water 0 (9.3.1.24) Discharges to brackish surface water/seawater 0 487 (9.3.1.25) Discharges to groundwater 0 (9.3.1.26) Discharges to third party destinations 0 (9.3.1.27) Total water consumption at this facility (megaliters) 0 (9.3.1.28) Comparison of total consumption with previous reporting year Select from: ☑ About the same (9.3.1.29) Please explain Avient does not externally disclose water information at the site level. Row 29 (9.3.1.1) Facility reference number Select from: ☑ Facility 96 (9.3.1.3) Value chain stage Select from: ☑ Direct operations (9.3.1.4) Dependencies, impacts, risks, and/or opportunities identified at this facility Select all that apply 488 ☑ Risks (9.3.1.5) Withdrawals or discharges in the reporting year Select from: ☑ Yes, withdrawals and discharges (9.3.1.7) Country/Area & River basin Germany ☑ Elbe River (9.3.1.8) Latitude 0 (9.3.1.9) Longitude 0 (9.3.1.10) Located in area with water stress Select from: ☑ No (9.3.1.13) Total water withdrawals at this facility (megaliters) 0 (9.3.1.14) Comparison of total withdrawals with previous reporting year Select from: ☑ About the same (9.3.1.15) Withdrawals from fresh surface water, including rainwater, water from wetlands, rivers and lakes 489 0 (9.3.1.16) Withdrawals from brackish surface water/seawater 0 (9.3.1.17) Withdrawals from groundwater - renewable 0 (9.3.1.18) Withdrawals from groundwater - non-renewable 0 (9.3.1.19) Withdrawals from produced/entrained water 0 (9.3.1.20) Withdrawals from third party sources 0 (9.3.1.21) Total water discharges at this facility (megaliters) 0 (9.3.1.22) Comparison of total discharges with previous reporting year Select from: ☑ About the same (9.3.1.23) Discharges to fresh surface water 0 (9.3.1.24) Discharges to brackish surface water/seawater 490 0 (9.3.1.25) Discharges to groundwater 0 (9.3.1.26) Discharges to third party destinations 0 (9.3.1.27) Total water consumption at this facility (megaliters) 0 (9.3.1.28) Comparison of total consumption with previous reporting year Select from: ☑ About the same (9.3.1.29) Please explain Avient does not externally disclose water information at the site level.

Guatemala City, Guatemala 66. Photos (Left): Community Service Event, Ahrensburg, Germany, (Right) ENGAGE session, Changzhou City, China *According to the Great Place to Work® 2021 Global Employee Engagement Study.

Guatemala City, Guatemala 69. Cities will have greater opportunities to install air quality monitoring stations that measure pollutants and particulates at a street level.

Calvert City facility, together with certain defense costs of Goodrich Corporation. These same Court rulings and the settlement agreement provide a mechanism to allocate future remediation costs at the Calvert City facility to Westlake Vinyls, Inc.

Guatemala City, Guatemala 63.

Guatemala City, Guatemala 63.

Guatemala City, Guatemala 63.

OWNERSHIP OF AVIENT SHARES 58 PROXY STATEMENT 2023 | Annual Meeting of Shareholders — — The following table shows information relating to all persons who, as of March 1, 2023, were known by us to beneficially own more than five percent of our outstanding common shares based on information provided in Schedule 13Gs and 13Ds filed with the SEC: Name and Address Number of Common Shares % of Class(4) BlackRock, Inc. 55 East 52nd Street New York, New York 10055(1) 11,190,454 12.29% The Vanguard Group 100 Vanguard Boulevard Malvern, Pennsylvania 19355(2) 10,130,890 11.12% Marquard & Bahls AG Koreastrasse 7 Hamburg, Germany 20457(3) 4,564,633 5.01% (1) Based on information contained in a Schedule 13G/A filed by BlackRock, Inc. with the SEC on January 26, 2023.