DSH: Notice of transactions of share purchase rights of Directors, PDMR (Mr. Nguyen Tien Hung)

- Name of issuer: Dong Son Infrastructure Investment Joint Stock Company
- Stock code: DSH
- Security type: common stock
- Name of person discharging managerial responsibility/Director: Mr. Nguyen Tien Hung
- Position in the listed company: Member of the BOD, General Manager
- Number of shares held by the shareholder before transaction: 300,000 shares
- Number of share purchase rights held by the shareholder: 300,000 rights
- Nature of transaction: sale/acquisition of share purchase rights
- Number of rights to be disposed: 300,000 rights
- Expected holding of share purchase rights after transaction: 0 rights
- Number of shares to be acquired corresponding to the holding of share purchase rights after transaction: 300,000 shares
- Expected Start date of transaction: 10/11/2025
- Expected End date of transaction: 17/11/2025