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  Bidding and tendering refer to transactional methods employed in market economies for the sale/purchase of bulk commodities, contracting of construction projects, and procurement of services. This dual mechanism constitutes two aspects of commercial transactions. After over three decades of development, China has established a comprehensive bidding procurement system covering all domains and administrative levels, significantly expanding the scope of bidding activities, fostering fair market competition, and standardizing procurement practices. With the continuous improvement of legal frameworks, administrative supervision mechanisms, social oversight systems, and market entities' self-discipline mechanisms, the bidding system is poised to achieve broader applications and sustainable development in China.

  According to Article 15 of the Implementing Regulations of the Bidding and Tendering Law of the People's Republic of China, prequalification announcements and bidding notices for mandatory bidding projects must be published through media designated by the National Development and Reform Commission. As a vital market competition mechanism, bidding maximizes the principles of "openness, fairness, and impartiality" by enabling multiple bidders to compete equitably. This process facilitates the acquisition of optimal goods, projects, or services at minimal costs, thereby enhancing economic and social efficiency, improving the utilization of state funds, and promoting reforms in investment/ financing management systems across industries.

  CnOpenData's Regional Bidding Database integrates bidding information from over 100 bidding platforms, comprising 58 million+ records. It comprehensively covers official regional bidding platforms and numerous non-official platforms, meticulously documenting the entire bidding and tendering process. This dataset represents a rare and high-quality micro-level resource for research.


Data Scale

Regional Bidding Data Across China

Regional Bidding Data Across China


Time Coverage

As of August 2022, with varying time ranges across regions


Field Display


Sample Data


Relevant Literature

  • Dou Chao, Wang Qiaowan, Chen Xiao, 2020: "Can Government-Background Client Relationships Alleviate Financing Constraints for Private Enterprises?", Journal of Financial Research 11.
  • Zhang Qinlin, Shen Hongtao, 2020: "Can Government Mega-Clients Enhance Enterprise Total Factor Productivity?", Journal of Financial Research 11.
  • Dou Chao, Yuan Man, Chen Xiao, 2020: "Government-Background Major Clients and Audit Fees: A Supply Chain Risk Transmission Perspective", Accounting Research 03.
  • Yuan Man, Dou Chao, Xue Jian, 2019: "Spring River Warmth: Can Analysts Decode State Sector Procurement?", China Accounting Review 02.
  • Liu Jinghuan, Zhang Xiao, Wang Baoshun, 2013: "Research on Economic Functions of Government Procurement Policies in China", Public Finance Research 02.

Update Frequency

Annual Update