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

1. Investor's name: ANZA JOINT STOCK COMPANY – Business registration number: 0106444478 2. Stock code owned: S55 3. Number of shares held before trading: 3,348,914 shares (equivalent to 33.49%) 4. Number of shares purchased: 102,600 shares (equivalent to 1.03%) 5. Number of shares held after trading: 3,451,514 shares (equivalent to 34.52%) 6. Transaction time: April 21, 2023 So,

1. Full name: HOANG HUYEN TRANG 2. Stock code owned: S55 3. Number of shares held before trading:  516,700 shares (equivalent to 5.17%) 4. Number of shares sold:  301,900 shares (3.02% respectively) 5. Number of shares held after trading: 214,800 shares (2.15%) 7. Transaction time: April 20th, 2023 So, Since April 20th, 2023, Ms. Hoang Huyen Trang is no longer a major shareholder

1. Investor's name: ANZA CORPORATION – Business registration number: 0106444478 2. Stock code owned: S55 3. Number of shares held before trading: 2,466,914 shares (equivalent to 24.67%) 4. Number of shares purchased: 882,000 shares (equivalent to 8.82%) 5. Number of shares held after trading: 3,348,914 shares (equivalent to 33.49%) So, Up to this point, Anza Joint Stock Company

1. Name of individual performing the transaction: - Mr. Dang Quang Dat - Internal shareholder  - Position: Member of the Board of Directors - And related person of Mr. Dang Quang Dat: + Mrs. Nguyen Thi Huong  - Relationship: Wife + Mrs. Dang Thi Minh Hue  - Relationship: Son 2. Trading stock code: S55 3. Number of shares held before trading: 2,026,458 shares, equivalent to 20.26%,

1. Full name: HOANG HUYEN TRANG 2. Stock code owned: S55 3. Number of shares held before trading:  516,700 shares (equivalent to 5.17%) 4. Number of shares registered for sale:  301,900 shares (3.02% respectively) 5. Expected number of shares to hold after trading: 214,800 shares (2.15%) 7. Transaction time: 20/4/2023 So, After completing the transaction, Ms. Hoang Huyen Trang

1. Investor's name: ANZA JOINT STOCK COMPANY – Business registration number: 0106444478 2. Stock code owned: S55 3. Number of shares held before trading: 22,466,914 shares (equivalent to 24.67%) 4. Number of shares registered to buy: 882,000 shares (equivalent to 8.82%) 5. Number of shares held after trading: 3,348,914 shares (equivalent to 33.49%) 6. Transaction execution time: -

At 08:30, April 6, 2023 Song Da 505 Joint Stock Company held the 2023 Annual General Meeting of Shareholders. After a period of working with the spirit of urgency, democratic centralism, the meeting was held. approved the "contents submitted by the Board of Directors to the General Meeting" with a high rate of approval, the results and developments of the General Meeting are as follows: 1. Minutes

In order for the General Meeting to take place smoothly and quickly, the Board of Directors of the Company agreed to adjust the program and update the Meeting Documents: 1. Congress Program 2. Report of the Board of Directors in 2022 3. Report of BKD in 2022 4. Statement of issues through the University 2023 4.1 Application for resignation of a member of the Board of Directors of Mr.