The bidding company shall file with the issuing department. Every certificate that requires a business license must be filed with the department that issued the certificate. If you are qualified as a bidding agent, you need to file it with the National Development and Reform Commission. In case of bidding, it is necessary to report to the Ministry of Construction. Business license to find business. Tax registration certificate, tax, etc. And then the work needs to be reported to the regulatory authorities. The content of filing is in every link of the whole process, and when it is necessary to provide text content, such as the announcement and bidding documents of the tenderer, the bidding documents of the bidder, the construction contract, etc. Finally, the effective filing materials after the bidding process need to be reported to the urban construction archives.