Supplier background checks rest on three pillars: Legal Entity, Production Capacity, and Quality Systems (Source: Industry Practice). Verification: Cross-reference the Unified Social Credit Code with the National Enterprise Credit Information Publicity System (Source: Inspection Co). Pitfalls: 32% of fake ISO certificates omit critical scope details (Source: SourcifyChina). Methodology: Online verification + on-site audit + machine testing with actual materials (Source: Industry Insights).
I.
Legal Entity Verification
Credit Publicity: Check the National Enterprise Credit Information Publicity System (GSXT) for active status and blacklist records (Source: Inspection Co). Business Scope: Must include terms related to manufacturing/production (Source: Sohu). Social Security Enrollment: 0 employees indicates a shell company or “hanging” registration (Source: Sohu). Operational Anomalies: Check the list of enterprises with abnormal operations (Source: XILINK). Litigation Records: Check the China Judgments Online database and verify patent ownership consistency (Source: Sohu).
— Entity Check: Publicity status + Social security data + Anomaly status (three-layer filter).
II. Certification Verification
ISO 9001: Verify certificate number via CNAS and check if the audit scope covers the relevant operations (Source: SourcifyChina). CE Certificate: Check the Notified Body, model number, and validity period via nando.ec.europa.eu (Source: szghtech). Authenticity: 32% of fake certificates omit critical scope details (Source: SourcifyChina). Industry Licenses: Permits specific to the industry (Source: Dan&Young). General Taxpayer Status: Eligibility to issue special VAT invoices (Source: Dan&Young). — Certification: CNAS + Notified Body (verify directly with the issuing agency).
III. Production Capacity Audit
Equipment: 5-axis CNC, welding robots, calibration lab (Source: fobsourcify); Employee IDs: Random spot checks of employee ID numbers (Source: fobsourcify); GPS: Geotagged photos and videos (Source: fobsourcify); Matching: Claimed capacity vs. actual equipment and workforce (Source: Inspection Co); Machine Testing: Test runs using actual materials (Source: Sohu)—Capacity verification: Equipment + ID checks + test runs (to prevent traders from posing as manufacturers).
IV.
Engineering Capabilities
Design Software: Licensed SolidWorks/NX (Source: fobsourcify); 3D Models: Models from past projects (Source: fobsourcify); Engineers: Interviews with lead designers (Source: fobsourcify); Drawings: Design history documentation (Source: fobsourcify); Templates: Use of generic quotation templates is a red flag (Source: fobsourcify)—Engineering assessment: Software + models + interviews (to evaluate in-house R&D capabilities).
V.
Financial Review
Three-Year Financial Reports: Balance sheet, income statement, cash flow statement (Source: Yuanchuangli); Debt-to-Asset Ratio: Solvency assessment (Source: Yuanchuangli); Current Ratio: Short-term debt repayment ability (Source: Yuanchuangli); Customer Due Diligence: Direct contact with 2–3 overseas clients (Source: viotech); Export Records: Customs data (Source: viotech)—Financial verification: Financial reports + customers + customs data (triangulated validation).
VI. On-site Audit
Documentation: Consistency between Control Plan and SOP versions (Source: Automa); Process Control: On-site execution vs. documentation (Source: Automa); Traceability: Traceability of incoming materials (Source: Automa); Corrective Action: Records of non-conformance handling (Source: Automa); Insurance: Product liability insurance (Source: Automa)—Audit scope: Documentation, process, and traceability (all five areas must meet pass criteria).
VII.
Procurement Recommendations
First, entity verification (public records + social security data); second, certification verification (CNAS/Notified Body); third, production capacity audit (machine trial run with materials); fourth, financial review (three years of financial statements);
fifth, customer reference checks (2–3 clients)—Due diligence: Entity, certification, and capacity (three-layer verification).
