1. Name of individual performing the transaction: Dang Van Tuyen

– Internal shareholders – Position: Board member

2. Securities trading code: S55

3. Number of shares held before trading: 287,200 shares (2,87%)

4. Number of shares registered to buy: 200,000 shares (2.00%)

• Expected transaction value: 9,000,000,000 VND.

5. Number of shares expected to hold after trading: 487,200 shares (4,87%)

6. Trading method: Order matching or agreement

7. Expected time of transaction execution:

– Start date: November 04th, 2021

– End date: December 04th, 2021