Commercial complex is a combination of more than three functions of urban living space such as commerce, office, residence, exhibition, catering, conference, recreation and other urban living space in the city, and to establish an interdependent and mutually beneficial dynamic relationship between the parts, so as to form a multi-functional, high-efficiency, complex and unified complex.

In accordance with Article 9 of the Bidding Law, the bidding project in accordance with the relevant provisions of the state need to fulfill the project approval procedures, shall first fulfill the approval procedures and obtain approval. The bidder should have to carry out the bidding project of the corresponding funds or sources of funds have been implemented. That is, the fulfillment of the project approval procedures and the implementation of the source of funds is the bidding project must have two basic conditions before bidding.