1. Forged qualification conditions: filling in false statements or forged qualification documents of tenderers or bidders in order to obtain illegitimate interests.
2. Bidding manipulation: report the behavior of the tenderee or bidder colluding, monopolizing the project by means of agreed pricing and restricting competition, and crowding out other qualified competitors.
3. Unfair bid evaluation: report that the tenderee or the bid evaluation committee made subjective and unfair evaluation of the bid quotation, violating the bidding rules or commitments.