1. Name of individual performing the transaction:

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

2. Trading stock code: S55

3. Number of shares held before trading: 40,080 shares, equivalent to 0.40%

4. Number of shares registered for sale: 40,080 shares, equivalent to 0.40%

5. Number of shares expected to hold after trading: 00 shares (corresponding to 00%)

6. Trading method: Order matching or agreement

7. Estimated time of transaction:

– Date start: May 12th, 2023

– Date end: June 12th, 2023