1. Name of individual performing the transaction:

Ms. Dang Thuy Duong – Person related to internal shareholders

2. Information of relevant insiders:

– Mr. Dang Van Tuyen

– Current position: Member of the Board of Directors

– Relationship of individual conducting transactions with insiders: Con

– Proportion of shares held by insiders: 472,560 shares, equivalent to 4.73%

3. Trading stock code: S55

4. Number of shares held before making the transaction: 0 shares (corresponding to 0%)

5. Number of shares registered to buy: 300,000 shares

6. Number of shares expected to be held after the transaction: 300,000 shares

7. Trading method: Order matching and agreement

8. Estimated time to perform the transaction:

– Start date: January 12, 2024

– End date: February 6, 2024