Legal basis: Bidding Law of People's Republic of China (PRC).

Article 6 The bidding activities of projects that must be subject to bidding according to law are not restricted by regions or departments. No unit or individual may illegally restrict or exclude legal persons or other organizations outside the local area or system from bidding, and may not illegally interfere in bidding activities in any way.

Article 9 If a project subject to tender needs to go through the project examination and approval procedures in accordance with the relevant provisions of the state, it shall go through the examination and approval procedures first and obtain approval.

The tenderer shall have the corresponding funds for the project subject to tender or the sources of funds have been implemented and truthfully stated in the tender documents.

Article 10 Bidding is divided into open bidding and invitation bidding.

Open tender means that the tenderer invites unspecified legal persons or other organizations to bid by means of tender announcement.

Invitation to bid means that a tenderer invites a specific legal person or other organization to bid in the form of an invitation to bid.