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 trading: 40,080 shares, equivalent to 0.40%.

4. Number of shares sold: 40,080 shares, equivalent to 0.40%

5. Number of shares held after performing the transaction: 00 shares (corresponding to 00%)

6. Trading method: Order matching or agreement

7. Transaction time: May 16th, 2023