Oriental Bio: The chairman proposes to repurchase shares worth no more than 50 million yuan.

Dongfang Biology Announcement: On June 17, 2025, the Chairman of the company, Fang Jianqiu, proposed that the company repurchase some of its shares through centralized competitive bidding trading method, to maintain the value of the company and the rights and interests of shareholders. The total amount of repurchase funds shall not exceed RMB 50 million, the upper limit of the repurchase price shall not exceed 120% of the average trading price of the company's stock in the 30 trading days before the resolution on the repurchase plan is approved by the board of directors. The source of funds is the company's own funds or self-raised funds, and the repurchase period shall not exceed 3 months. Mr. Fang Jianqiu has not bought or sold company shares in the six months before the proposal, and has no plans to increase or decrease holdings during the repurchase period. The company will convene a board meeting as soon as possible to review the repurchase matters, and will vote in favor of the repurchase proposal at the board meeting.