Supplier Due Diligence Checklist
Use this before payment or onboarding.
Private label
Private-label sourcing asks a supplier to handle more than production. The supplier may see drawings, packaging, product photos, target price, customer requirements, and future launch timing. That information has value before the first order ships.
Not every product detail needs the same protection. A public product photo, a standard material, and a shipping mark do not carry the same risk as a custom drawing, mold design, formula, firmware file, or brand artwork. The buyer should decide which information matters before sending a full package to every supplier that asks.
Start with a disclosure list. Put each file in one of three groups: safe to share early, share after entity verification, or share after contract and supplier approval. This forces the sourcing team to slow down at the right point. A supplier that cannot pass basic identity checks should not receive the most valuable files.
Private-label buyers often send documents to a salesperson's email and never confirm which company receives them. That creates a weak record. Ask for the Chinese legal entity, website, business license, and the person responsible for technical files. If the supplier uses a trading company and a factory, identify both before sharing drawings.
Use file names and email subjects that show what was sent. If the buyer later needs to prove disclosure, a vague chat attachment will not help. Keep the date, recipient, company, file name, and purpose. The record should show that the buyer shared files for a specific quotation or production review, not for unrestricted use.
A nondisclosure clause helps, but it does not stop leakage by itself. The buyer should ask how the supplier stores drawings, who can access files, whether subcontractors receive them, and whether the supplier will use the design in sales material. These operational questions reveal whether the supplier treats private-label work with discipline.
If the supplier wants to subcontract production, require disclosure before files move. A subcontractor may need drawings to quote or produce the goods. The buyer should know that before the design leaves the first supplier's control.
A supplier that sells similar private-label designs online deserves a closer look. Similar products may be normal in a crowded category, but copied photos, identical packaging, or a history of selling customer designs should change the buyer's terms. Ask who owns the displayed designs and whether the supplier can show authorization.
Do not rely only on the supplier's promise. Save product pages, catalog images, and chat messages if the issue matters. The buyer may later need to show that a design was already visible, or that the supplier changed a listing after receiving files.
The final decision should say what the buyer can share now and what must wait. For example: share product dimensions and target materials for quotation, hold detailed CAD files until entity verification and NDA signature, and hold packaging artwork until sample approval.
This keeps sourcing practical. The buyer still moves forward, but it does not hand over the full commercial file to an unverified supplier. Private-label risk drops when the buyer controls sequence.
Private-label buyers often send more than a logo. They send packaging artwork, customer samples, market positioning, material preferences, barcode rules, and sometimes a near-final product concept. If the supplier later sells a similar version to another customer, the buyer needs a clean file trail showing what it shared and when the supplier received it.
A useful review separates public information from buyer-owned material. Public catalog items need one level of protection. Custom artwork, CAD files, customer lists, Amazon listing assets, and unpublished designs need tighter controls. Put version numbers on the files, send them through a recorded channel, and ask the supplier to confirm that it will use them only for the quoted project.
Verify legal entity, factory role, file recipient, subcontractor use, and the supplier's handling of drawings, molds, packaging, and brand material.
An NDA helps, but buyers also need file-control rules, subcontractor disclosure, and a record of what was shared and when.
Share full drawings only after the supplier passes identity checks and the buyer has approved the disclosure level for that supplier.
Use this before payment or onboarding.
Keep a record finance can review.
Choose the right depth for the decision.