1. Name of individual performing the transaction:

Mr. Dang Tat Thanh – Internal shareholder – Position: Chairman of the Board of Directors

2. Trading stock code: S55

3. Number of shares held before making the transaction: 0 shares, equivalent to 0.00%.

4. Number of shares registered to buy: 130,000 shares, equivalent to 1.30%

5. Number of shares held after the transaction: 130,000 shares (corresponding to 1.30%)

6. Trading method: Order matching or agreement

7. Expected time to carry out the transaction: January 24, 2024 – February 24, 2024