Information disclosure regulations

NQ Giao dịch hoán đổi cổ phần

15:00, April 18, 2025 The Board of Directors of Song Da 505 Joint Stock Company met and approved the Capital Contribution to IDS Investment Services Joint Stock Company, specifically: I. Approval of capital contribution: - Company name: IDS Investment Services Joint Stock Company - Address: 14B Ky Dong, Ward 9, District 3, Ho Chi Minh City, Vietnam. - Capital contribution value: 90,000.0

Annual Repport 2024

At 8:30 a.m. on March 26, 2025, Song Da 505 Joint Stock Company held the 2025 annual general meeting of shareholders. After a period of working with a spirit of urgency and democratic concentration, the Congress approved the contents submitted by the Board of Directors to the Congress with a high approval rate, along with the election of the Board of Directors and the Supervisory Board for the 2025-2030

For details of the Resolution approving the policy of implementing Contracts/Transactions between the Company and related parties in 2025, see here, please.

1. Name of individual performing the transaction: Mr. Dang Tat Thanh - Internal shareholder - Position: Directors 2. Trading stock code: S55 3. Number of shares held before making the transaction: 159,000 shares, equivalent to 1.59% 4. Number of shares registered to buy: 206,300 shares, equivalent to 2.06% 5. Number of shares purchased: 206,300 shares, equivalent to 2.06% 6. Number

AnnualGeneralMeetingDocuments2025, see here. Please.

1. Name of individual performing the transaction: Mr. Dang Tat Thanh - Internal shareholder - Position: Director 2. Trading stock code: S55 3. Number of shares held before the transaction: 159,000 shares, equivalent to 1.59% 4. Number of shares registered to buy: 206,300 shares, equivalent to 2.06% 5. Number of shares held after the transaction: 365,300 shares (equivalent to 3.65%) 6.

The Board of Directors of Song Da 505 Joint Stock Company respectfully invites Shareholders who own S55 shares at the time of closing the list on January 24th, 2025 to attend the 2025 Annual General Meeting of Shareholders. 1. Time: 08:30 March 26th, 2025. 2. Location: Saphire Room - 2nd Floor - Aquaria Culinary Cultural Complex - Le Duc Tho Street, My Dinh 2, Nam Tu Liem, Hanoi. Please see