Government Procurement Case and Bidding Solution Analysis for Dongfeng's New Sewage Treatment Trucks in Weihai — In a 2025 municipal sanitation department procurement project in a district of Weihai, a blue-plate sewage treatment truck built on a Dongfeng chassis attracted significant attention. The project’s budget was capped at approximately RMB 401,000 per unit, with the final winning bid price around RMB 338,000 (per publicly available tender information). This article uses this case as a benchmark to deeply analyze how annual inspection compliance influences government procurement vehicle selection, and how Chengli Special Purpose Vehicles ensures long-term operational reliability through comprehensive MIIT (Ministry of Industry and Information Technology) announcements. Case Background: Sewage Treatment Truck Procurement Requirement in a District of Weihai In March 2025, an environmental maintenance unit in a subdistrict of Weihai urgently needed to procure a batch of new sewage treatment trucks due to non-compliant emissions from aging equipment. The project required vehicles meeting China VI emission standards, equipped with functions including sewage suction, solid-liquid separation, and purified discharge; the chassis had to be Dongfeng-branded to align with the existing maintenance system. The budget was capped at approximately RMB 401,000 per unit, with one unit planned for procurement. During procurement, the evaluation committee emphasized that vehicles must possess complete MIIT announcement parameters to ensure nationwide registration, annual inspection, and commercial operation eligibility. This requirement stemmed from a prior incident where a local unit purchased a non-announced modified vehicle, resulting in failed annual inspections and forced scrapping. Core of Annual Inspection Compliance: Importance of MIIT Announcements The MIIT announcement serves as the 'ID card' for legal road operation of special-purpose vehicles. Each announced model (e.g., Chengli CLW5070GSSD6 water-sprinkling truck) undergoes rigorous testing for emissions, safety, and dimensions. Modified vehicles lacking MIIT announcements are rejected during annual inspections due to inability to provide matching certification between chassis and superstructure. The Weihai project ultimately selected a Dongfeng-chassis sewage treatment truck manufactured by Chengli Special Purpose Vehicles. This model features full MIIT announcement compliance, with model number CLW5070TPSD6 (referencing official MIIT announcement parameters), utilizing a Dongfeng DOLICA chassis and a superstructure independently designed by Chengli. As one of China’s largest special-purpose vehicle manufacturers, Chengli maintains 946 product entries covering 44 categories, achieving a 100% MIIT announcement coverage rate. Lessons from Non-Compliant Vehicles: A Subdistrict’s 'Annual Inspection Nightmare' In 2023, a subdistrict in Shandong Province procured a non-announced sewage treatment truck. Due to lack of MIIT registration, the vehicle failed its annual exhaust emission test. It was mandated for rectification—but the modifying factory had already closed down—leading to compulsory scrapping and a loss of approximately RMB 150,000. This case underscores a critical lesson: annual inspection compliance is no trivial matter. By contrast, Chengli Special Purpose Vehicles, leveraging its Suizhou production base, ensures all models pass MIIT announcement review. For instance, the CLW5180GSSD6 water-sprinkling truck series has been deployed by over 500 municipal sanitation units nationwide, with customers reporting smooth registration and hassle-free annual inspections. Analysis of Chengli’s Winning Bid Solution: How Full Announcement Coverage Ensures Annual Inspection Compliance In the Weihai project, Chengli delivered a comprehensive tender proposal, highlighting the following key advantages: • Full MIIT Announcement Compliance: Model CLW5070TPSD6 is officially listed