What to ask when a supplier subcontracts part of production

A supplier can be responsible for a finished product while another entity performs coating, assembly or testing. A directory that lists only the first company hides a critical process boundary.

What the primary source can establish

The U.S. International Trade Administration due diligence guide is the first-party reference for this guide. The guide separates country, company or partner, and purchasing risks and calls for continuing due diligence. It does not investigate or endorse any named supplier on Source Ledger. The steps below are our editorial method for making a buyer-facing field more precise.

A field-level check

Identify which steps are internal and which are subcontracted. Ask how specifications, change control, inspection and confidentiality pass to the subcontractor. Record the subcontracted site's identity only when a source supports it.

Write down the exact field, the party that supplied the information, the original document or page, the date seen and the scope of the check. If a reviewer took an action, record that action rather than a general “verified” label. Reopen the source when the transaction or underlying document changes.

Where the inference stops

Subcontracting is not itself a failure. The risk is assuming a certificate or site visit covers work done elsewhere. Do not extend evidence from one operator to another without scope.

A missing answer is a question to resolve, not permission to substitute a guess. Separate a statement by the supplier from a public record and from a documented human review. No source in this article proves a quality ranking or an existing buyer relationship.

What to record before deciding

Describe the supplier's role and the unresolved subcontracted processes. For high-impact steps, make disclosure and acceptance of the chain part of the buyer's order review.

This entry describes how to evaluate evidence. It is not a dossier for a real company, an approval decision or a substitute for transaction-specific professional review.

Common question

Does a supplier's own audit cover its subcontractor automatically?

No. Check the audit scope and any controls over the subcontracted process separately.

Related guide

Continue with How to record ownership and access to production tooling for another field-level check.