CSI: Notice of transaction of Directors, PDMR (Hoang Xuan Hung)

- Name of issuer: Vietnam Construction Securities Joint Stock Company
- Stock code: CSI
- Name of person discharging managerial responsibility /Director: Hoang Xuan Hung
- Position in the listed company: Vice Chair of the Board, General Manager
- Number of shares held by the shareholder before transaction: 822,525 shares (4.9%)
- Nature of transaction: negotiation
- Number of shares to be acquired: 2,000,000 shares
- Reason for transaction: increase shareholding
- Expected Start date of transaction: 17/09/2025
- Expected End date of transaction: 15/10/2025