TransThera Sciences (Nanjing), Inc. will convene an extraordinary general meeting (EGM) on 18 June 2026 at 9:00 a.m. via the Vistra eVoting Portal. Shareholders will vote by poll on one special and one ordinary resolution.

Key agenda items:

1. Special resolution – H Share Award Scheme • Formal adoption of the H Share Award Scheme. • Approval of the Scheme Mandate Limit. • Authorisation for the Scheme Administrator to handle all related matters.

2. Ordinary resolution – Service Provider Sublimit • Conditional approval of a dedicated sub-limit for awards to service providers, contingent on the scheme’s adoption.

Share registration and proxy arrangements:

• The H-share register will close from 15 June to 18 June 2026 (both days inclusive). Transfers must be lodged with Tricor Investor Services by 4:30 p.m. on 12 June 2026. • Shareholders on record as of 18 June 2026 may attend and vote. • Proxy forms must be deposited no later than 9:00 a.m. on 17 June 2026.

Governance:

The board currently comprises Executive Directors Dr. Frank Wu (Chairman & CEO) and Mr. Wu Di; Non-Executive Director Ms. Jia Zhongxin; and Independent Non-Executive Directors Mr. Li Shu Pai, Ms. Chui Hoi Yam and Ms. Zheng Zhelan.