Bidding refers to the documents sent to potential contractors, suppliers or service providers through competitive bidding, inquiry and comparison, which contain detailed information and requirements of procurement requirements, as well as contract terms and conditions.

Bidding usually includes bidding documents, bidding documents and transaction notice.

The tenderee can seek the most competitive quotation and scheme through bidding, and choose the most suitable contractor, supplier or service provider to sign a contract with it. Bidding is also an important tool to ensure the efficiency of public funds and the fairness and justice of bidding.