Legal basis: Bidding Law of People's Republic of China (PRC).
Article 22 A tenderer shall not disclose to others the names and numbers of potential bidders who have obtained the tender documents and other tender information that may affect fair competition. If the tenderer has a pre-tender estimate, the pre-tender estimate must be kept confidential.
Article 52 If a tenderer of a project subject to tender according to law discloses to others the names and quantities of potential bidders who have obtained the tender documents or other tender conditions that may affect fair competition, or discloses the pre-tender estimate, he shall be given a warning and may be fined at least 1 10,000 yuan and less than110,000 yuan; The person in charge directly responsible for the unit and other directly responsible personnel shall be punished according to law; If a crime is constituted, criminal responsibility shall be investigated according to law. If the acts listed in the preceding paragraph affect the result of winning the bid, the bid will be invalid.