The 21 circumstances of bid-rigging include the reasons for the bidding documents, the reasons for the bidders, the reasons for the bidding process, and the reasons for the suppliers.
I. Reasons for bidding documents.
1, the bidding documents are identical, the same format, the same font, the same table color.
2, the bidding documents in the wrong place consistent.
3. Bidding documents of different bidders are prepared by the same computer or printed by the same subsidiary equipment.
4. Binding form, thickness and cover of the tender documents are similar or even the same.
5, a bidding documents in the material bound another bidder's documents, the appearance of another legal representative or authorized agent to sign, stamped with another bidder's official seal.
6, the deadline for submission of tender documents, a number of bidders almost simultaneously issued a statement of withdrawal of tender documents.
7, the signature of the legal representative in the tender documents from the same person.
2. Reasons for the bidders.
1, the bidder's representative did not know the phone number of the company's president.
2, different bidders before the opening of the bidding in the same car to go, talking and laughing, the opening site but pretend not to know.
3, different bidders of the total bid price is unusually consistent, or greatly differentiated, or regular changes.
4, different bidders of the total bidding price is similar, but the sub-offer unreasonable, and no reasonable explanation.
5, electronic bidding, different bidders bidding for the same IP address, or IP address in a particular region.
6, the bidder has three or more times in a year to participate in the registration and purchase of bidding documents, and then do not submit bidding documents, do not participate in the bid opening meeting.
7, different bidders bidding deposit by the same account funds.
8, individual bidders use the same person or the same enterprise issued a bid bond.
Three, the bidding process reasons.
1, intentional scrapping of the bid, the winning bidder without a valid reason to give up the winning bid, or do not sign a contract with the bidder in accordance with the provisions of the contract.
2, deliberately in accordance with the provisions of the bidding documents invalid bidding provisions, the production of invalid bidding documents.
3. After-sales service terms are identical.
4, deliberately omit the signature of the legal representative.
4, the supplier reasons.
1, the supplier directly or indirectly from the purchaser or the procurement agency to obtain other suppliers of relevant information and modify their bidding documents or response documents.
2, the supplier in accordance with the instructions of the purchaser or the purchasing agent to remove, modify the bidding documents or response documents of the substantive content.