Invitation Letter for the Competitive Bidding Procedure of the 2026 Waste Collection and Disposal Contracting Project

I. Project Overview and Scope of Selection:
(1) Name: 2026 Waste Collection and Disposal Contracting Project
(2) Location: No. 98, Longxiang Avenue, Wanzhou District, Chongqing City
(3) Inquiring Entity: Chongqing Xiangyu Salt & Chemical Co., Ltd.
(4) Scope of Comparison and Selection:
1. Chongqing Xiangyu Salt Chemical Co., Ltd. and Chongqing Suote Salt Chemical Co., Ltd. are able to promptly collect and dispose of domestic waste, non-hazardous waste (including sludge), and waste residues generated from production, maintenance, employee living activities, and other sources, thereby ensuring that the plant area remains clean and tidy and that production and daily life proceed smoothly. We are now outsourcing the collection and disposal of both domestic and production waste. The service contract period is one year, from January 1, 2026, to December 31, 2026.
2. The procurement control price for this project in 2026 is set as follows: Referencing the 2025 waste collection and transportation contract prices, the aim is to ensure lawful and compliant waste disposal and to mitigate environmental risks. The final control price is 580,000 yuan (including a special value-added tax invoice at 1%).
The specific quotation standards are as follows:
(1) Fixed-price contract for domestic waste management: The quotations from both Sote Company and Xiangyu Salt & Chemical are no higher than 4,000 yuan per month (including a special value-added tax invoice at 1%, delivered to the factory in one single invoice).
(2) Non-hazardous waste: For small vehicles with a capacity of 3 tons or more (volume ≥ 5.7 cubic meters), the quoted price shall not exceed 230 yuan per vehicle; for medium-sized vehicles with a capacity of 8 tons or more (volume ≥ 8 cubic meters), the quoted price shall not exceed 420 yuan per vehicle; for street-sweeping vehicles (10 cubic meters), the quoted price shall not exceed 100 yuan per hour (including a special value-added tax invoice at 1%, delivered to the factory in one bill).
(3) Sludge disposal and transportation: Based on the weighed weight, the quoted price shall not exceed 300 yuan per ton (including a special value-added tax invoice at 1%, delivered to the factory in one invoice).
Quotation Requirements: The total quoted price from the bidding unit must not exceed RMB 580,000, and the unit price for each item must not exceed the corresponding reference price listed above. Any quotation that exceeds the respective control price—either in total or per item—will be deemed invalid and disqualified.
3. The bidding party must ensure that the flow of waste is lawful and compliant, establish a comprehensive management ledger covering the entire process—from waste generation to collection, transportation, and disposal—and accurately record information such as waste type, quantity, and destination, thereby enabling traceability and easy retrieval of data. The bidding party shall bear all costs associated with waste disposal independently. The waste disposal plan provided must include measures for controlling leachate and odorous pollutants. For waste disposed of by the bidder itself, relevant qualifications and an environmental completion acceptance report must be submitted. If waste disposal is entrusted to a third party, the bidder must verify the trustee’s legal status and technical capabilities, and provide the entrustment contract, the trustee’s qualifications, and documents outlining pollution prevention agreements.
4. The bidding party must ensure that the flow of waste is lawful and compliant, establish a comprehensive management ledger covering the entire process—from waste generation to collection, transportation, and disposal—and accurately record information such as waste type, quantity, and destination, thereby ensuring traceability and ease of retrieval. The bidding party shall bear all costs associated with waste disposal independently. The waste disposal plan provided must include measures for controlling leachate and odorous pollutants. For waste disposed of independently, the bidding party must submit relevant qualifications and an environmental completion acceptance report. If waste disposal is entrusted to a third party, the bidding party must verify the trustee’s legal status and technical capabilities, and provide the entrustment contract, the trustee’s qualifications, and documents outlining pollution prevention agreements.
5. The bidder shall report monthly to Chongqing Xiangyu Salt & Chemical Co., Ltd. on the volume and destination of waste and sludge disposal. Other types of waste shall be measured by the number of vehicles, while sludge shall be measured by weighed weight.
6. The bidding party must own at least 18 garbage collection vehicles (with a capacity of 3 tons or more) for use in this project. From the date the contract takes effect, all containers provided by the bidder must be placed at the designated locations within the plant premises.
7. The bidding party’s operational vehicles must include one compactor for household waste and one self-unloading vehicle for waste transfer, and both vehicles must be operated by qualified, full-time drivers. Furthermore, the waste collection vehicles must be operated directly by the bidding unit itself; outsourcing or subcontracting is strictly prohibited. Should such practices be discovered, the requesting party will immediately terminate the contract.
8. Household waste is collected once daily on weekdays, and collection continues as usual on weekends and holidays.
9. The bidding party must place trash bins in the designated areas as required by Xiangyu Company and Sote Company, and must remove the fully loaded bins every day.
10. The quotation for waste collection and disposal fees is divided into two categories: domestic waste and non-hazardous waste (including sludge). For domestic waste, the collection and disposal fees will be charged on a monthly fixed-rate basis. For non-hazardous waste, the collection and disposal fees will be calculated separately based on unit prices for small containers (3 tons and above) and medium-sized vehicles (8 tons and above). All units are requested to submit their quotations, which should include taxes and be submitted as a one-time offer.
II. Price Deadline
Deadline: 10:00 on December 16, 2025 (Beijing Time; the actual deadline shall be determined by the completion time of the procurement approval). For this public inquiry, the quotation period is from 10:00 on December 9, 2025, to 10:00 on December 16, 2025.
III. Quotation Requirements
1. The quotation includes VAT at X%, plus freight to No. 98 Longxiang Avenue, Wanzhou District, Chongqing City (one-ticket system). Please specify the tax rate.
2. Required Documents: Quotation, business license of the quoting entity, a copy of the operating permit for municipal solid waste management (including waste sweeping, collection, transportation, and disposal services) held by the quoting entity, vehicle registration certificates for the company’s compactors and self-discharging transfer vehicles used for municipal waste, driver’s licenses of full-time drivers, identity documents of the legal representative, authorization letter, and bid integrity commitment letter, among others. All documents must be stamped with the official seal (fresh seal) of the enterprise.
3. Please mail the quotation documents to No. 98 Longxiang Avenue, Wanzhou District, Chongqing City, before the quotation deadline.
Contact Information
(1) Contact person and phone number: Yuan Li, 18183093088
(2) Price Comparator: Chongqing Xiangyu Salt & Chemical Co., Ltd.
(3) Address: No. 98 Longxiang Avenue, Wanzhou District, Chongqing City
Evaluation and Selection
This price comparison will be conducted using the lowest evaluated bid method, with the winning bid being the one offering the lowest total price. The settlement amount will be calculated based on the actual unit prices. Any entity that fails to meet the requirements specified in the request for quotation will not be permitted to participate in this evaluation.
Payment Method
After signing the contract, full payment will be made 60 days after the goods have been delivered, passed inspection, and the invoice has been recorded.
Supervision Contact Information
Reporting hotline: 023-61002070, 13708371911; reporting email: xyyhjw@126.com

Disclaimer: The official platform for our company’s announcement of this tender is the website of Chongqing Xiangyu Salt & Chemical Co., Ltd.: http://www.cqxyyh.com. Apart from this, our company has not published any tender information on any other websites, forums, or media platforms. Any tender information reproduced from other sources and attributed to our company as the tendering entity is unauthorized and therefore invalid. We reserve the right to pursue legal action against those responsible for such unauthorized reproduction.