China BlueChemical Ltd. has issued a notice convening its Annual General Meeting (AGM) for 28 May 2026 at 09:00 a.m. in Haikou. Key items for shareholder approval are as follows:

1. 2025 Financial Reporting and Profit Distribution • Review and approval of the Board report, audited financial statements, and auditors’ report for the year ended 31 December 2025. • Approval of the 2025 profit-distribution proposal and declaration of a final dividend (amount not disclosed in the notice).

2. Auditor Re-appointment • Mazars ZSZH Certified Public Accountants LLP (domestic) and Forvis Mazars CPA Limited (overseas) are nominated for re-appointment for the 2026 financial year, with remuneration to be set by the Audit Committee.

3. Special Resolutions • Amendments to the Board’s rules of procedure. • General mandate authorizing the Board, for up to 12 months or until the next AGM (whichever is earlier), to issue, allot or deal with additional Domestic Shares and/or H Shares up to 20% of each share class in issue, and to handle all related regulatory filings and documentation. • General mandate permitting the Board, within the same period, to repurchase up to 10% of H Shares in issue, including authority to cancel repurchased shares and amend the Articles of Association to reflect the resultant capital reduction.

4. Key Timelines for Shareholders • Share register closure for AGM attendance: 22–28 May 2026 (both days inclusive); share transfers must be lodged by 4:30 p.m. on 21 May 2026. • Share register closure for final dividend entitlement: 3–8 June 2026; transfers must be lodged by 4:30 p.m. on 2 June 2026. • Expected dividend payment date: on or about 30 June 2026 to shareholders on record as of 8 June 2026.

Shareholders may appoint proxies to attend and vote; proxy forms and related authorizations must be submitted no later than 9:00 a.m. on 27 May 2026 for Domestic Shares and lodged with Computershare Hong Kong Investor Services Limited for H Shares within the same deadline.