Seres Group Co., Ltd. will convene its second extraordinary general meeting (EGM) of 2026 on 25 June at 1:00 p.m. in the company’s Chongqing headquarters. Shareholders of the company’s H shares (par value RMB1.00 each) are entitled to appoint proxies or attend in person.

Key matters for shareholder approval:

1. H Share Award Scheme • Adoption of a new H Share Award Scheme. • Establishment of a Service Provider Sublimit within the scheme. • Authorization for the Board and/or the scheme administrator to execute all necessary documents and actions to implement the plan.

2. Board Composition • Ordinary resolution to confirm a change of non-executive director.

Proxy instructions must be lodged with Tricor Investor Services Limited at least 24 hours before the meeting. Shareholders or proxies will be required to present valid identification to attend and vote.