| 1 | Legal Manufacturing Status | 10% | The manufacturer should have a valid Chinese business registration, an identifiable production site, and the required environmental and workplace-safety permissions. | Business registration records, production-site information, environmental compliance documents, and safety certificates. | Pass/fail gate, then 0–10 points |
| 2 | Calcium Chloride Assay | 15% | The product grade must be clearly stated as anhydrous, dihydrate, solution, flake, pellet, or powder. Assay results should be reported for every production lot. | Recent third-party laboratory reports, lot-specific certificates of analysis, and a documented test method. | 15 points for complete and consistent lot data |
| 3 | Moisture and Physical Form | 8% | Moisture, particle size, bulk density, caking tendency, and dissolution behavior should match the buyer’s spreading equipment and storage conditions. | Product specification sheet, sieve analysis, moisture test, storage-life data, and sample inspection. | 0–8 points against agreed specifications |
| 4 | Low-Temperature Melting Performance | 14% | Performance should be evaluated at defined temperatures, application rates, contact times, and snow or ice conditions rather than by calcium chloride content alone. | Controlled laboratory melting tests, temperature-performance curves, and field-trial records. | 0–14 points based on comparative test results |
| 5 | Corrosion Control | 12% | The product should disclose corrosion behavior for steel, galvanized components, concrete, and common road infrastructure. Inhibited formulations require inhibitor identification and dosage control. | Metal-coupon tests, concrete compatibility tests, corrosion-rate data, and applicable ASTM or equivalent procedures. | 0–12 points based on tested corrosion rate |
| 6 | Environmental and Chemical Safety | 10% | Heavy metals, insoluble matter, pH, packaging residues, and aquatic-release risks should be assessed before use near soil, vegetation, drainage systems, or water bodies. | Safety Data Sheet, heavy-metal report, impurity profile, environmental assessment, and disposal guidance. | 0–10 points based on documented risk controls |
| 7 | Quality Management and Traceability | 10% | A reliable producer should control raw-material intake, batch numbering, laboratory testing, nonconforming products, and customer complaints. | Quality-management certificates, internal inspection plans, batch records, calibration records, and corrective-action procedures. | 0–10 points for system maturity |
| 8 | Production Capacity and Supply Stability | 8% | Capacity should be evaluated against seasonal road-treatment demand, minimum order quantities, peak-season allocation, and continuity of raw-material supply. | Verified annual capacity, monthly output records, inventory policy, production lead time, and contingency plans. | 0–8 points based on delivery reliability |
| 9 | Packaging, Handling, and Logistics | 6% | Packaging must protect hygroscopic calcium chloride from moisture during storage and transport. Export shipments should use compliant labeling and transport documents. | Packaging specifications, palletizing details, container-loading photos, export documentation, and delivery records. | 0–6 points for packaging and logistics performance |
| 10 | Commercial Value and Technical Support | 7% | The total evaluation should include delivered cost, dosage efficiency, warranty terms, technical response time, sampling policy, and after-sales support. | Comparable quotations, total-cost calculation, sample policy, service-level agreement, and customer references. | 0–7 points based on total value |