144 0002015092 XXXXXXXX LIVE 0001227654 COMPASS MINERALS INTERNATIONAL INC 001-31921 9900 W. 109TH STREET SUITE 100 OVERLAND PARK KS 66210 913-344-9200 Hood Jennifer R. Former Officer Common FIDELITY BROKERAGE SERVICES LLC

245 Summer Street BOSTON MA 02110

1486 28531.00 41620522 05/16/2025 NYSE Common 01/13/2022 Stock Award ISSUER N 170 01/13/2022 Compensation Common 09/20/2022 Stock Award ISSUER N 0 09/20/2022 N/A Common 11/14/2022 Stock Award ISSUER N 117 11/14/2022 Compensation Common 12/20/2022 Dividend ISSUER N 1 12/20/2022 N/A Common 01/13/2023 Stock Award ISSUER N 648 01/13/2023 Compensation Common 03/20/2023 Dividend ISSUER N 4 03/20/2023 N/A Common 04/27/2023 Stock Award ISSUER N 512 04/27/2023 Compensation Common 06/20/2023 Dividend ISSUER N 6 06/20/2023 N/A Common 09/20/2023 Dividend ISSUER N 8 09/20/2023 N/A Common 12/20/2023 Dividend ISSUER N 8 12/20/2023 N/A Common 03/20/2024 Dividend ISSUER N 12 03/20/2024 N/A Y 05/19/2025 /s/ Jordyn Davis as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Hood Jennifer R.