What are the behaviors of bidders and bidders colluding in bidding?

1, the tenderer opens the tender documents before the bid opening, and informs other bidders of the bidding situation, or assists the bidders to change the tender documents and change the quotation;

2. The tenderer discloses the pre-tender estimate to the bidder;

3. The tenderer and the bidder agree to reduce or increase the bid price when bidding, and then give the bidder or the tenderer additional compensation after winning the bid;

4. The tenderer breaches the bid winner in advance;

5. Other collusive bidding behaviors.

Relevant legal knowledge:

Provisions on relevant contents of the Bidding Law of People's Republic of China (PRC).

Article 35 The bid opening shall be presided over by the tenderer, and all bidders shall be invited to participate.

Article 36 At the time of bid opening, the bidder or its elected representative shall check the sealing condition of the bid documents, and may also be checked and notarized by a notary agency entrusted by the tenderer; After confirmation, the staff will open it in public and read out the name of the bidder, the bid price and other main contents of the bid documents.

All bid documents received by the tenderer before the deadline for submission of bid documents required by the tender documents shall be opened and read out in public when opening bids.

The bid opening process shall be recorded and filed for future reference.