Hunan Road and Bridge Tongsheng Company plans to conduct a public bidding for the design and construction of the circular culvert for the G107 Yuhua District Three Character Wall to Zhaoyun Road section (Zhaoyun Avenue common section) highway project. Units that meet the bidding requirements will come to bid. 1、 The bidding content and scope include the design and construction of circular culverts and all related services required for the general contracting project of the G107 Yuhua District Three Character Wall to Zhaoyun Road section highway project (Zhaoyun Avenue common section) of Hunan Road and Bridge Tongsheng Company. The estimated quantity for this bidding is 360 meters of circular pipe culverts with a diameter of 1500 * 2000 * 200, totaling one package. 2、 Qualification requirements for bidders. （1） Compliance requirements: 1. Business scope requirements: manufacturers or suppliers of circular pipe culverts legally registered in Chinese Mainland, with production and operation qualifications, and independent enterprise legal personality. 2. Production capacity requirements: Bidders should have a registered capital of no less than RMB 1 million and must possess relevant production licenses or business qualifications. 3. Quality assurance capability requirements: (1) The products provided by the bidder must meet the requirements of relevant national, Ministry of Transport, and industry standards, and provide product factory certificates and relevant inspection materials. (2) Since 2022, no quality issues have been reported to the Ministry of Transport or provincial transportation or industry regulatory agencies (including those under rectification). 4. Credit requirements for performance: (1) Have a good social reputation and have not been listed as a dishonest debtor on "Credit China" (www.creditchina. gov.cn) or credit information sharing platforms at all levels (website query screenshots must be provided). (2) Since 2022, the tenderer has not received any reports of bidders providing false materials or violating regulations in the bidding of materials for other bidding projects, resulting in disqualification from bidding. (3) Since 2022, the tenderer has not received any litigation or arbitration reports related to criminal or serious illegal activities related to bidders defrauding contracts. (4) Since 2022, the tenderer has not received any reports of serious breach of contract by bidders, and the enterprise has not been in a prohibited or cancelled bidding state. (5) The bidder's bank credit rating, tax credit rating, and good historical cooperation reputation (must provide a bidder's credit certificate or credit certificate issued by the opening bank, a tax credit rating certificate issued by the tax bureau, and at least two certificates of good performance issued by similar bidding material users). 5. Supply performance requirements: Bidders must have a supply performance of more than 2 years in circular culverts for highways or municipal engineering (proof of winning bid notification, supply contract, etc. must be provided). 6. This bidding requires the payment of a bid security deposit of 10000 yuan as required (not required). 7. Financial capability requirements: Have a good financial condition (provide scanned copies of financial reports, audit reports, and statements audited by an accounting firm for 2022 and 2023). 8. Provide the litigation and arbitration situations that have occurred in the past two years. （2） Other requirements: 1. The bidder has not had any litigation or arbitration with our company in the past two years (excluding those that have reached a friendly settlement through negotiation), and must hold the "Bid Registration Reply Letter (Qualified)" issued by our company. 2. Affiliated enterprises with investment and shareholding relationships, or parent and subsidiary companies with direct management and managed relationships, or the same