I. Project Background and Procurement Scenario Guilin is located in South China and features a subtropical monsoon climate, characterized by a long rainy season and high humidity, resulting in heavy sludge removal demands for urban drainage networks. In 2024, a municipal sanitation department procured a batch of blue license plate, 5-cubic-meter Dongfeng single-cab sludge suction trucks for routine sludge removal operations in old residential communities, municipal road stormwater inlets, and pipelines. Per local procurement practice, the budget was capped at approximately RMB 394,000 (tax-inclusive landed price), with requirements including: operability under Class C driver’s license (blue plate compliance), effective tank capacity of 5 m³, high corrosion resistance, and reliability under high-frequency operation. Following open tendering, Chengli Special Purpose Vehicle Co., Ltd. delivered three Dongfeng single-cab sludge suction trucks (model CLW5070GSSD6), now deployed across multiple districts in Guilin. Customer feedback confirms that the anti-corrosion coating performs well in the local high-humidity environment, and sealing components demonstrate excellent durability—no failures occurred during high-frequency rainy-season operations. This article systematically analyzes key stages of the government procurement process based on this case. II. Pre-Tender Preparation for Government Procurement Prior to initiating the tender process, the procuring entity must complete the following preparatory steps to ensure procurement outcomes align with actual operational needs: 1. Needs Assessment and Technical Parameter Confirmation The humid-heat climate in the Guilin region imposes specific requirements on sludge suction trucks: • Anti-corrosion Coating: The body, tank, and hydraulic piping must be coated with epoxy zinc-rich primer + polyurethane topcoat, with salt-spray test performance ≥500 hours to prevent corrosion during the rainy season. • Sealing Component Durability: Hydraulic cylinder seals and pipeline joint gaskets must be made of acid/alkali-resistant and high-temperature-resistant materials such as fluororubber or polyurethane, suitable for Guilin’s summer conditions (temperatures up to 40°C, relative humidity ≥85%). • High-Load Performance: During the rainy season, operation frequency is high (6–8 consecutive hours per day), requiring efficient hydraulic system cooling and robust engine heat dissipation to prevent overheating-induced shutdowns. Chengli Special Purpose Vehicle provided detailed technical specifications for the CLW5070GSSD6 model in its bid documents: National VI emission standard, Dongfeng single-cab cab, effective tank capacity of 5 m³, hydraulic self-dumping function plus high-pressure cleaning capability—all compliant with Class C driver’s license requirements. 2. Budget Formulation and Funding Sources Based on publicly available tender information, the unit price for blue license plate, 5-cubic-meter sludge suction trucks in the Guilin region ranges between RMB 280,000 and RMB 330,000 (tax-inclusive landed price), covering chassis, upper-body assembly, modification, and transportation costs. The budget must clearly itemize expenditures—including vehicle acquisition cost, taxes, freight, and training fees—to avoid post-contract scope creep. As a direct manufacturer, Chengli offers savings of approximately RMB 8,000–15,000 compared to 4S dealership channels for identical configurations, enabling the procuring entity to secure higher-specification vehicles within budget. 3. Tender Document Preparation The procuring entity must engage a qualified tender agency to draft the tender documents. Core components include: Technical Specification Sheet, Commercial Requirements, and Evaluation Criteria (technical score ≥50%, price score ≥30%, service score ≤20%). Chengli can proactively supply supporting documentation—including technical parameters, third-party test reports, and official announcements (e.g