The audit center of government investment projects in Xiangzhou District of Zhuhai conducts public bidding every year. The qualifications of the applicant meet the provisions of Article 22 of the Government Procurement Law of People's Republic of China (PRC); Qualification requirements for implementing government procurement policies.

All package series do not accept consortium bidding; If the legal representative of different bidders (or the person in charge of the unit or the executive partner) is the same person, they may not participate in the same package of bidding activities at the same time, otherwise the bidding will be invalid; Except for package C, which accepts branch companies to participate in bidding, other package series do not accept branch companies' bidding, and package C does not allow suppliers and their branches or different branches of the same supplier to participate in bidding at the same time, otherwise all bids will be invalid.