Use NNN, not a Western NDA, before you send drawings to a China factory.
NNN means the factory must not use the information to compete, not disclose it, and not go around you to your customer. A one-way NDA copied from a US template often fails that job: it may allow internal ‘use’, omit circumvention, choose a useless forum, or skip a China-facing damages and evidence plan. Trade-secret law still requires reasonable secrecy measures. Register designs and trademarks in China; the NNN is a contract layer, not a property right. The manufacturing sprint guide is the deeper playbook.
4 questions before you choose the route.
This page identifies the right question and evidence. It does not determine the legal outcome on a reader’s facts.
Who will actually see the drawings?
Trading company, factory, sub-supplier and WeChat groups are different signers.
RecipientsDoes the paper ban use and circumvention, not only disclosure?
If it only says ‘keep confidential’, it is still an NDA.
NNN testWhich law, language and forum can you actually use?
A Delaware NDA with a US court is a weak China factory tool.
ForumWhat secrecy measures sit around the paper?
Marking, sample control, mould ownership and access logs.
MeasuresWorking rule: Map the regulated role before marketing or launch in China.
The signal ledger.
These facts move the question beyond a label and into a product, money-flow and control analysis.
Bring a compact evidence docket—not a pitch deck.
Give a compliance team or counsel the operating facts that reveal the perimeter.
Questions people ask before they build.
Short answers for orientation. The right result can change with the service model and current rules.
Is an NNN a China-specific statute?
No. It is a contract label. The Civil Code and Anti-Unfair Competition Law still supply the background. The value is the three promises plus a usable China enforcement path.
Where is the full manufacturing playbook?
Use the maintained NNN manufacturing guide for the one-week sprint. This wiki page stays at definition and routing.
Primary authorities
Reviewed sources support orientation, not a fact-specific assessment.