X0609 4 2026-10-15 0000730464 Covista Inc. CVSA 0001744684 CHIU EMILY C false 233 S. WACKER SUITE 800 CHICAGO IL 60606 1 0 Common Stock 2026-10-15 4 A 0 259 127.24 A 259 D The common stock is a restricted stock unit which represents a right to receive one share of common stock for each restricted stock unit. The number of restricted stock units awarded to the Reporting Person is a prorated portion of the Reporting Person's equity grant amount based on the number of days between August 17, 2026 and the Annual Meeting date divided by $127.24, the closing price of CVSA common stock on October 15, 2026. The restricted stock units will vest in full on November 12, 2026, subject to the Reporting Person's continued service on the Board through the vesting date. /s/ Lawrence C. Bachman, attorney-in-fact for Ms. Chiu 2026-10-16