A supplier can have a polished website, a fast sales team and a credible-looking quotation—and still be the wrong partner. Before you send a sampling fee or production deposit, use this checklist to separate basic evidence from sales claims.
Important: supplier verification reduces uncertainty; it does not eliminate commercial, quality, legal or logistics risk. Match the depth of checking to the value and consequences of the order.
1. Confirm the legal entity
Ask for the company’s registered Vietnamese name, enterprise registration number, registered address and legal representative. The name on the quotation, invoice, bank account and contract should be explainably connected to the registered entity. A mismatch is not automatically fraud, but it requires a clear, documented reason.
2. Separate the factory from the trading company
Trading companies can be useful, especially for mixed orders or smaller volumes. The problem is not the business model; it is undisclosed dependency. Ask which production steps happen in-house, which are subcontracted and who is accountable for defects and delays.
3. Verify the operating address
Compare the registered address, factory address, warehouse address and address shown on recent documents. Use maps, business directories, shipping records where available and a live video walkthrough. For higher-value orders, consider an independent on-site visit.
4. Test product-specific capability
“We can make it” is not evidence. Request examples with similar material, dimensions, tolerances, finish, certification and order volume. Ask what equipment and quality controls are used for the most failure-prone step in your product.
5. Review the quality system
Go beyond a certificate scan. Ask how incoming materials are checked, how in-process defects are recorded, how final inspection is sampled and who can stop a shipment. Request a redacted inspection report or corrective-action example to see whether the system is actually used.
6. Validate certificates independently
Check the issuing body, certificate number, validity dates, scope, product coverage and exact legal entity named. A real certificate may still be irrelevant to your product or issued to a related company rather than the contracting supplier.
7. Check export experience for your destination
A supplier serving the domestic market may be capable, but export orders add labeling, packaging, documentation, compliance and logistics demands. Ask for experience with your destination, product category and Incoterm—not merely “international customers.”
8. Compare capacity claims with your timeline
Ask for normal monthly output, current utilization, peak-season constraints, minimum economic batch size and the true bottleneck. Then request a production plan with material lead time, sampling, tooling, production, inspection and buffer clearly separated.
9. Confirm payment beneficiary details
The beneficiary should align with the contracting entity or an explained group/export arrangement. Treat late bank-detail changes, personal accounts, unexplained third parties and pressure to bypass established channels as serious warning signs. Confirm changes through a second communication channel.
10. Put specifications before price
A low quotation is meaningless if each supplier priced a different interpretation. Create a requirements sheet covering materials, dimensions, tolerances, color, finish, performance, packaging, labeling, testing, acceptance criteria and defect responsibility. Make exclusions visible.
11. Run a structured sample process
Define whether the sample is a visual prototype, functional sample or pre-production standard. Record approved materials and changes. A good sample is useful only when the production order is tied to the same specifications and the factory can reproduce it consistently.
12. Agree on inspection and remedies
Before paying a deposit, define inspection timing, sampling standard, critical/major/minor defects, rework responsibility, replacement terms and what happens if goods are late or fail. Commercial leverage is strongest before the deposit and before shipment.
A simple risk-based decision
Rate each area as verified, partially verified or unverified. Then focus on the gaps that could cause the largest financial, compliance or customer impact. A supplier does not need to be perfect; it needs to be suitable for your product, order value and risk tolerance.
Need a defensible supplier shortlist?
Send VNLEE your product requirements and target order profile. We’ll reply with the recommended verification scope, timeline and fixed-fee quote.