such as must be bidding for the construction of engineering construction units, must be phased bidding, can not be directly renewed;
Because of the construction unit's The previous project, the construction unit has won the bid, from the project project management as well as construction engineering quality assurance and other considerations, the construction unit to continue to participate in the bidding, occupies a certain advantage, increasing the possibility of winning the bidding factors.
Legal basis
Article 12 of the Measures for Tendering and Bidding for Construction of Engineering and Construction Projects, the construction project that requires approval, in one of the following cases, approved by the approving department, may not carry out the construction bidding:
1)Involving national security, state secrets, or rescue and relief and is not suitable for bidding;
2)Belonging to the use of funds for poverty alleviation The implementation of food for work requires the use of migrant workers;
3) the construction of the main technology using specific patents or proprietary technology;
4) construction enterprises to build their own works, and the construction enterprise qualification level in line with the requirements of the project;
5) in the construction of additional ancillary minor works or the main body of the construction of additional floors, the original successful bidder still has the ability to contract;
6) the construction of the construction of additional ancillary minor works or the main body of the construction of additional floors, the original successful bidder still has the ability to contract;
6) other circumstances provided by laws and administrative regulations.