MAC: Notice of transaction of connected person (Vu Thi Thanh Huong)

- Name of issuer: Marine supply and engineering service JSC
- Stock code: MAC
- Securities type: Common stock
- Name of connected person: Vu Thi Thanh Huong
- Name of person discharging managerial responsibility (PDMR)/Director: Nguyen Van Cuong
- Position in the listed company: Chair of the Board
- Number of shares held by person discharging managerial responsibility (PDMR)/Director: 161,622 shares (1.07%)
- Relation between connected person and PDMR/Director: Spouse
- Number of shares held by connected person before transaction: 26,726 shares (0.18%)
- Number of shares to be disposed: 25,000 shares
- Nature of transaction: order matching & negotiation
- Purpose of transaction: Personal
- Expected Start date of transaction: 12/03/2025
- Expected End date of transaction: 09/04/2025