Shanghai Junshi Biosciences Co., Ltd. (Junshi Biosciences) has issued a notice for its 2026 first extraordinary general meeting (EGM), scheduled for 27 July 2026 at 2:50 p.m. on the 15th Floor, Building 7, No. 6, Lane 100, Pingjiaqiao Road, Pudong New Area, Shanghai.

The sole agenda item is a special resolution authorising a general mandate for the company to repurchase its H shares. Voting will be conducted by poll, with results to be released on the company’s website and Hong Kong Exchanges and Clearing’s information platform.

Key administrative arrangements:

• Share register closure: 22 – 27 July 2026 (both days inclusive). • Record date: 27 July 2026. • Deadline for lodging H-share transfer documents: 4:30 p.m., 21 July 2026, with Tricor Investor Services Limited, 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong. • Proxy submission: H-shareholders must deposit completed forms with Tricor at least 24 hours before the meeting.

Shareholders may appoint one or more proxies, who need not be shareholders, to attend and vote on their behalf. The current board, chaired by Mr. Xiong Jun, comprises seven executive directors, two non-executive directors and six independent non-executive directors.