DCF: Notice of transaction of Directors, PDMR (Duong Dinh Tam)

- Name of issuer: Design and Construction Join Stock Company No.1
- Stock code: DCF
- Name of person discharging managerial responsibility /Director: Duong Dinh Tam
- Position in the listed company: Chief Accountant
- Number of shares held by the shareholder before transaction: 0 shares (0%)
- Number of shares registered to be acquired: 1,000,000 shares
- Expected par value: VND10,000,000,000
- Number of shares expected to be held by the shareholder after transaction: 1,000,000 shares (1.89%)
- Reason for transaction: Increase DCF ownership ratio
- Nature of transaction: Purchase of shares from the issuer’s private placement
- Expected date of transaction: from September 08, 2025 to October 06, 2025.