1. Identify the counterparty
- — Registered legal name and address
- — Manufacturer, processor, brand owner, exporter or trader
- — Factory and tea-garden claims tied to evidence
- — Authorized person and contracting entity
Buyer guide
How to Verify a Matcha Supplier in China
A supplier website, sample and certificate bundle are a starting point—not complete due diligence. Verification should follow the product risk, destination market and value of the commitment.
Five-stage checklist
Move from identity to independent evidence.
2. Define the product
- — Origin and raw-material source
- — Cultivation and shading claim
- — Processing route and grinding method
- — Specification, grade terminology and intended use
- — Lot coding, shelf life and storage
3. Check quality evidence
- — Representative sample and agreed evaluation method
- — Lot-specific COA
- — Pesticide, heavy-metal and microbiological reports relevant to the destination
- — Certificate issuer, scope, product and validity
- — Traceability and complaint handling
4. Test commercial reliability
- — MOQ and trial-order policy
- — Capacity, seasonality and lead time
- — Price basis, packaging and Incoterms
- — Sample-to-bulk consistency controls
- — Change notification and contingency planning
5. Verify independently when risk justifies it
- — Certificate verification with the issuer
- — Third-party laboratory testing
- — Remote or on-site factory assessment
- — Reference shipment or export-document review
- — Written contract with specifications and remedies
Red flags
Pause when evidence cannot be connected to the actual product and company.
- The contracting company differs from the certificate holder without explanation.
- “FDA certified” is used without a precise explanation of the registration or requirement.
- Only generic certificates are supplied; scope, product or validity cannot be checked.
- The sample is excellent but no lot-consistency process is defined.
- Origin, shading, tencha or stone-ground claims change between documents.
- Pressure for large prepayment appears before identity and specifications are settled.
What sourcing support can—and cannot—do
I can help structure a brief, research counterparties, request documents, coordinate questions and identify gaps requiring specialist review.
This does not replace laboratory testing, legal advice, regulatory review, financial due diligence, customs advice or a binding product specification in the purchase contract.