HSI: Change in shareholding of principal shareholder (Mr. Ha Minh Hung)

- Name of issuer: General materials Biochemistry Fertilizer Joint Stock Company
- Stock code: HSI
- Securities type: common stock
- Name of principal shareholder: Mr. Ha Minh Hung
- Number of shares held by the principal shareholder before transaction:  500,500 shares (5.005%)
- Number of shares disposed: 22,000 shares
- Number of shares acquired: 200 shares
- Total holding following transaction and total percentage following transaction: 478,700 shares (4.787%)
- Date of transaction: 04/07/2025