Guangzhou Baiyunshan Pharmaceutical Holdings Company Limited (Baiyunshan Pharma) has announced a final ordinary dividend of RMB 0.45 per share for the financial year ended 31 December 2025, following shareholder approval on 29 May 2026.

Key Distribution Details • Dividend amount: RMB 0.45 per share, equivalent to HKD 0.5162 per share, based on an exchange rate of RMB 1 = HKD 1.1471.

• Ex-dividend date: 12 June 2026.

• Last day to lodge transfer documents: 15 June 2026, 16:30 (Hong Kong time).

• Book-closure period: 16 June – 22 June 2026.

• Record date: 22 June 2026.

• Payment date: 17 July 2026.

Withholding Tax Framework 1. Non-resident enterprise shareholders: 10% enterprise income tax will be withheld. 2. Individual H-shareholders: 10% individual income tax will be withheld. 3. Mainland individual investors holding H-shares via Shanghai-Hong Kong or Shenzhen-Hong Kong Stock Connect: 20% individual income tax will be withheld. 4. Mainland securities investment funds investing through Stock Connect: subject to the same 20% individual income tax rate. 5. Mainland corporate investors using Stock Connect are required to self-declare and settle their enterprise income tax; no withholding will be applied by the company.

Administrative Arrangements Computershare Hong Kong Investor Services Limited will manage the share registration process at Shops 1712-1716, 17th Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong.

This dividend marks Baiyunshan Pharma’s distribution for its FY2025 earnings, reinforcing its commitment to shareholder returns under the outlined tax and settlement schedule.