Công bố thông tin – CC1 – Page 5

On May 14, 2026, Construction Corporation No. 1 – JSC (CC1) signed Audit Contract No. 17/2026/UHYHCM-HĐKT with UHY Audit and Consulting Co., Ltd. to audit the Head Office Financial Statements, Separate Financial Statements, and Consolidated Financial Statements for the fiscal year ending December 31, 2025 of CC1.

Through the selection of UHY Audit and Consulting Company Limited instead of Deloitte Vietnam Company Limited to audit the Head Office Financial Statements, Separate Financial Statements, and Consolidated Financial Statements for the fiscal year 2025 of CC1 (English)

Through the selection of UHY Audit and Consulting Company Limited instead of Deloitte Vietnam Company Limited to audit the Head Office Financial Statements, Separate Financial Statements, and Consolidated Financial Statements for the fiscal year 2025 of CC1 (in Vietnamese)

The vote count minutes and the Shareholders' General Meeting Resolution were approved through a written shareholder consultation process (in English).

The vote count minutes and the Shareholders' General Meeting Resolution were approved through a written shareholder consultation process (in Vietnamese).

Announcement of personnel changes (Appointment of Deputy General Director – Mr. La Thai Hiep) (in English)

Announcement of personnel changes (Appointment of Deputy General Director – Mr. La Thai Hiep) (in Vietnamese)

Resolution of the Board of Directors on the approval and authorization of contracts and transactions related to the Na Duong II Thermal Power Plant Project (in English)

Resolution of the Board of Directors on the approval and authorization of contracts and transactions related to the Na Duong II Thermal Power Plant Project (in Vietnamese)

Resolution of the Board of Directors on unanimously approving documents and papers for obtaining shareholder opinions in writing (with accompanying documents as required) (in English)

Resolution of the Board of Directors on unanimously approving documents and papers for obtaining shareholder opinions in writing (accompanied by required documents) (in Vietnamese)

Resolution of the Board of Directors on unanimously approving the establishment of a branch of Construction Corporation No. 1 – JSC in Bac Ninh province (English)

Resolution of the Board of Directors on unanimously approving the establishment of a branch of Construction Corporation No. 1 – JSC in Bac Ninh province (Vietnamese)

Resolution of the Board of Directors on Adjusting the Time of the Annual General Meeting of Shareholders in 2026 (English)

Resolution of the Board of Directors on Adjusting the Time of the Annual General Meeting of Shareholders in 2026 (Vietnamese)

Explanation for the delayed disclosure of the 2025 financial statements (in English)

Explanation for the delay in disclosing the 2025 financial statements (in Vietnamese)

Resolution of the Board of Directors on deciding to organize a written shareholder consultation to approve matters within the authority of the General Meeting of Shareholders in accordance with the company's Articles of Association (English)