1. Name of individual performing the transaction: Vu Son Thuy

– Internal shareholder         – Position: Member of the Board of Directors

2. Trading stock code: S55

3. Number of shares held before trading: 357,982 shares (equivalent to 3.58%)

4. Number of shares registered for sale: 357,982 shares, equivalent to 3.58%

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:

– Start date: November 18th, 2021

– End date: December 18th, 2021