Minutes and Resolutions of the 2025 Annual General Meeting of Shareholders

Date of Publication: 26 June, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “Minutes and Resolutions of the 2025 Annual General Meeting of Shareholders”. Please kindly find the detailed document attached. Sincerely,

Information disclosure about additional documents for the 2025 Annual General Meeting of Shareholders

Date of Publication: 20 June, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “Information disclosure about additional documents for the 2025 Annual General Meeting of Shareholders”. Please kindly find the detailed document attached. Sincerely,

Information disclosure about the 2025 Annual General Meeting of Shareholders

Date of Publication: 04 June, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “Information disclosure about the 2025 Annual General Meeting of Shareholders”. Please kindly find the detailed document attached. Sincerely,

The 1st Quarter Consolidated financial statements for 2025 of Tan Cang Offshore Services JSC. and the Explanation document No. 123/2025/TOS-GT on the change in PAT on the 1st Quarter Consolidated financial statements exceeding 10% compared to the same period in 2024.

Date of Publication: 28 April, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “The 1st Quarter Consolidated financial statements for 2025 of Tan Cang Offshore Services JSC. and the Explanation document No. 123/2025/TOS-GT on the change in PAT on the...

The 1st Quarter Separate financial statements for 2025 of Tan Cang Offshore Services JSC. and the Explanation document No. 125/2025/TOS-GT on the change in PAT on the 1st Quarter Separate financial statements exceeding 10% compared to the same period in 2024.

Date of Publication: 28 April, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “The 1st Quarter Separate financial statements for 2025 of Tan Cang Offshore Services JSC. and the Explanation document No. 125/2025/TOS-GT on the change in PAT on the...

The 2024 Annual Report

Date of Publication: 17 April, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “ The 2024 Annual Report”. Please kindly find the detailed document attached. Sincerely,

The 2024 Consolidated financial statements of Tan Cang Offshore Services JSC. and the Explanation document No. 87/2025/TOS-GT on explanation for the change in PAT on the 2024 Consolidated financial statements exceeding 10% compared to 2023

Date of Publication: 28 March, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “ The 2024 Consolidated financial statements of Tan Cang Offshore Services JSC. and the Explanation document No. 87/2025/TOS-GT on explanation for the change in PAT on the...

The 2024 Separate financial statements of Tan Cang Offshore Services JSC. and the Explanation document No. 89/2025/TOS-GT on explanation for the change in PAT on the 2024 Separate financial statements exceeding 10% compared to 2023

Date of Publication: 28 March, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “ The 2024 Separate financial statements of Tan Cang Offshore Services JSC. and the Explanation document No. 89/2025/TOS-GT on explanation for the change in PAT on the...

REPORT ON CORPORATE GOVERNANCE IN 2024

Date of Publication: 23 January, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “ REPORT ON CORPORATE GOVERNANCE IN 2024”. Please kindly find the detailed document attached. Sincerely,

THE 4TH QUARTER CONSOLIDATED FINANCIAL STATEMENTS FOR 2024 OF TAN CANG OFFSHORE SERVICES JSC. AND EXPLANATION DOCUMENT NO. 20/2025/TOS-GT ON EXPLANATION FOR THE CHANGE IN PAT ON THE 4TH QUARTER CONSOLIDATED FINANCIAL STATEMENTS EXCEEDING 10% COMPARED TO THE SAME PERIOD IN 2023

Date of Publication: 22 January, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “ THE 4TH QUARTER CONSOLIDATED FINANCIAL STATEMENTS FOR 2024 OF TAN CANG OFFSHORE SERVICES JSC. AND EXPLANATION DOCUMENT NO. 20/2025/TOS-GT ON EXPLANATION FOR THE CHANGE IN PAT...

THE 4TH QUARTER SEPARATE FINANCIAL STATEMENTS FOR 2024 OF TAN CANG OFFSHORE SERVICES JSC. AND EXPLANATION DOCUMENT NO. 20/2025/TOS-GT ON EXPLANATION FOR THE CHANGE IN PAT ON THE 4TH QUARTER SEPARATE FINANCIAL STATEMENTS EXCEEDING 10% COMPARED TO THE SAME PERIOD IN 2023

Date of Publication: 22 January, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “ THE 4TH QUARTER SEPARATE FINANCIAL STATEMENTS FOR 2024 OF TAN CANG OFFSHORE SERVICES JSC. AND EXPLANATION DOCUMENT NO. 20/2025/TOS-GT ON EXPLANATION FOR THE CHANGE IN PAT...

2024 Corporate Governance Information Disclosure

Date of Publication: 15 January, 2025 To: Esteemed Shareholders Tan Cang Offshore Services JSC. respectfully presents to our Shareholders and Interested Investors the “2024 Corporate Governance Information Disclosure”. Please kindly find the detailed document attached. Sincerely,