Supply Chain Due Diligence | Supplier & Factory Verification in China & Vietnam
Supply Chain Due Diligence | Supplier Verification in China & Vietnam
Asia Agent delivers full transparency for U.S. importers. On-site supplier audits, raw material origin checks, and supply chain mapping built to withstand CBP scrutiny.
Why Supply Chain Due Diligence Matters
CBP is expanding audits on valuation, classification, and forced labor.
Without supplier verification and origin proof, U.S. importers risk detentions, penalties, and shipment holds.
Due diligence builds reasonable care — protecting your supply chain against CBP enforcement.
What’s Included
✅ Supplier verification with on-site audits in China & Vietnam
✅ Factory license review & legitimacy check
✅ Raw material origin tracing & chain-of-custody documentation
✅ Bill of Materials mapped to HS codes
✅ Production flow & capacity checks against trade data
✅ Compliance file creation: affidavits, reports, geo-tagged photo proof
How It Protects Importers
Proves supplier legitimacy with documentary evidence
Strengthens CBP audit defense under UFLPA & valuation/classification reviews
Reduces detention, seizure, and penalty risks
Ensures supply chain transparency for long-term compliance
Get Verified Before CBP Knocks
Don’t wait for a CF-28 or CF-29. Secure transparency in your supply chain with verified supplier audits and raw material origin proof.
Immediate On-Site Support
Our team is on the ground in China & Vietnam, delivering audit-ready verification within days.
Explore Related Compliance Services
• General Audit Preparedness
Build a compliance file before CBP knocks. We prepare U.S. importers for Focused Assessments, valuation reviews, and customs risk management.
➡️ Link: /general-audit-preparedness-cbp-compliance
• Factory Verification Report
Face-to-face factory meetings, geo-tagged photo proof, BOM to HS code mapping, and capacity checks aligned with trade data.
➡️ Link: /factory-verification-report-supplier-audits-china-vietnam
• UFLPA-Specific Compliance
CBP is detaining shipments under the Uyghur Forced Labor Prevention Act. We provide affidavits, proof of no forced labor, and rebuttable presumption evidence.
➡️ Link: /UFLPA Compliance Services
• Advanced & Specialized Services
When importers face complex cases, Asia Agent delivers boots-on-the-ground supplier verification, third-party audits, and enforceable legal contracts.
➡️ Link: /advanced-trade-compliance
Supply chain due diligence is the process of verifying suppliers, factories, and raw material origins to ensure compliance with U.S. import laws. For importers sourcing from China and Vietnam, this means proving legitimacy, transparency, and compliance before CBP audits. Proper due diligence reduces risks of detention, seizure, and costly penalties.
Supplier verification involves on-site factory visits, geo-tagged photo proof, production flow analysis, and chain-of-custody documentation. In China and Vietnam, Asia Agent conducts audits to confirm supplier legitimacy, factory capacity, and raw material sources. This ensures your suppliers meet both business standards and CBP compliance requirements.
While no importer can fully prevent an audit, having a due diligence report with affidavits, supplier verifications, and origin checks shows CBP that you exercised reasonable care. This makes audits smoother, reduces penalties, and strengthens your defense if shipments are detained.
Supply chain mapping identifies every link in the chain—from raw material sourcing to final factory production. For importers in China and Vietnam, this includes BOM mapping to HS codes, subcontractor checks, and material traceability. A complete supply chain map allows importers to prove compliance under CBP audits, especially for UFLPA cases.
The Uyghur Forced Labor Prevention Act (UFLPA) requires proof that no forced labor is used in your supply chain. Due diligence in China and Vietnam includes raw material origin verification, supplier affidavits, and rebuttable presumption evidence. Without this, CBP can block or seize shipments.
Remote checks often fail to capture real factory conditions. Asia Agent provides boots-on-the-ground verification in both China and Vietnam, with on-site photos, interviews, and production flow checks. This prevents suppliers from hiding subcontracting, falsified documents, or capacity issues.
Typically, on-site supplier audits in China or Vietnam can be arranged within 1–3 business days. Reports, including geo-tagged photos, BOM mapping, and compliance analysis, are delivered within a week—fast enough to meet CBP’s strict timelines.
Yes. Many CBP penalties are due to misclassification of HS codes or undervaluation. Supply chain due diligence ensures that invoices, BOMs, and HS codes align. This prevents errors that lead to costly penalties, especially for U.S. importers sourcing from Asia.
Absolutely. E-commerce importers face increasing CBP scrutiny due to rapid shipments, high SKU counts, and frequent small parcels. Supply chain due diligence provides the documentation needed to prove compliance and protect against audits, detentions, or seizures.
Asia Agent combines local presence with U.S. compliance expertise. Our teams in China and Vietnam conduct face-to-face audits, verify raw material origins, and deliver CBP-ready reports. With connected hubs and legal-backed contracts, we provide the evidence U.S. importers need to pass audits, reduce penalties, and protect supply chains.