CNOOC Development Tender: Diesel Engine Maintenance Services in the Eastern South China Sea; funding self-raised by the enterprise has been secured.

March 17 News, Tianyancha data shows that China National Offshore Oil Corporation (CNOOC) Energy Development Co., Ltd. has issued a proprietary agreement for auxiliary maintenance services of diesel engines in the eastern South China Sea through H oil Development - Equipment Technology Company, with an issuance date of March 17, 2026.

Summary of Core Bidding Information

Release of Oil Development Diesel Engine Maintenance Service Tender Announcement

CNOOC Energy Development Co., Ltd. is tendering for the auxiliary maintenance services of diesel engines in the eastern South China Sea via Equipment Technology Company, with the tender agency being Sinochem Construction International Tendering Co., Ltd. Tianjin Branch. The project is located in Tianjin, funded by the enterprise itself, and joint bids are not permitted.

Bid Section Details Clarified

There is only one bid section, numbered 26 - CNCCC - FW - GK - 0839/01, issued on March 17, 2026. The scope and main technical specifications include maintenance services for main diesel engine systems and components, with a service period of 3 years from the contract signing date.

Strict Qualification Requirements for Bidders

Qualification requirements are as follows:

1. The bidder must possess valid and legal business license, tax registration certificate, and organization code certificate or a combined business license, with scanned copies of the originals provided at bid time (originals kept for verification).
2. If the bidder is a public institution, it must have a valid legal person certificate for the institution, with scanned copies provided at bid time.
3. If the bidder is a branch, it must provide a valid business license and a letter of authorization from the parent legal entity (authorizing the branch to bid), recognizing the qualifications and performance of the parent and branch, but not other branches of the same parent. Scanned copies of originals are required. Only one branch per parent entity can participate; multiple branches from the same parent will invalidate the bids.

Bid Document Acquisition and Submission Arrangements

Bid documents can be obtained from March 17 to March 23, 2026, via the China National Offshore Oil Group Supply Chain Digital Platform’s tender announcement page, at a price of 200 RMB (non-refundable). Bids must be submitted via the same platform before 09:00 AM on March 31, 2026. The opening time and location are the same as the bid submission deadline.

Special Notes to Ensure Fairness and Justice

Bidders must use the system-provided software to prepare their bid documents after importing the tender documents; late submissions will be rejected. Using bid bond insurance is encouraged. China National Offshore Oil will strictly crack down on collusion, false statements, and other misconduct; violators will face disqualification and other penalties. After evaluation, bidders may raise objections or complaints during the public announcement of the winning candidates.

Tianyancha data shows recent information about projects tendered or awarded by H Oil Development as follows:

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