China Source Lab
Guides
Practical supplier verification guides for checking company identity, platform signals, payment accounts, documents, and red flags before payment.
Start here. This guide explains the full pre-payment supplier verification process, including company name checks, business licenses, payment accounts, quotes, product evidence, and red flags.
Read the guideSupplier verification cluster
Learn how to check whether the supplier's company information is consistent, traceable, and reasonable before payment.
Understand what platform signals and payment details can reveal about supplier risk.
Review quotes, proforma invoices, supplier claims, and warning signs before sending money.
Use the free Supplier Verification Checklist first. If the supplier name, payment account, quote, or documents do not clearly match, request a document-based Supplier Risk Review before you pay.