1. Name of individual performing the transaction: Mrs. Nguyen Thi Huong and Ms. Dang Thi Minh Hue

2. Relevant person:

– Mr. Dang Quang Dat – Internal shareholder  – Position: Member of the Board of Directors

– Relationship:

+ Mrs. Nguyen Thi Huong  – Relationship: Wife

+ Mrs. Dang Thi Minh Hue  – Relationship: Son

3. Trading stock code: S55

4. Number of shares held before trading: 492,152 shares, equivalent to 4.92%, specifically:

– Grandma. Nguyen Thi Huong holds: 411,992.0 shares (equivalent to 4.12%)
– Grandma. Dang Thi Minh Hue holds: 80,160.0 shares (equivalent to 0.80%)
5. Number of shares sold: 492,152 shares, equivalent to 4.92%

6. Number of shares held after trading: 00 shares (corresponding to 00%)

7. Trading method: Order matching or agreement

8. Estimated time of transaction: From May 10, 2023 to May 15, 2023