CASI PHARMACEUTICALS TO REPORT SECOND QUARTER 2021 FINANCIAL RESULTS AND HOST CONFERENCE CALL AUGUST 12, 2021

Date/Time: Thursday, August 12, 2021 8:00 AM (ET) We apologize for the technical difficulties related to this call and encourage individuals to listen to the replay of this event The Company will host a conference call reviewing the second quarter highlights at 8:00 a.m. ET on Thursday, August 12, 2021. On the call, CASI’s Chairman & CEO will provide an update on the Company’s business and upcoming milestones. The conference call can be accessed by dialing (833) 420-0382 (U.S.), (800) 870-0181 (China), (400) 682-8629 (China, domestic), 58086567 (Hong Kong) to listen to the live conference call. The conference ID number for the live call is 5639775. Participants dialing in via International Toll-Free Service (ITFS) numbers will be required to provide the following passcode to join the conference call: 8336474459, 6025859887. This call will be recorded and available for replay by dialing (855) 859-2056 (U.S.) or (404) 537-3406 (international) and enter 5639775 to access the replay.