Developing a physical product with a Chinese factory can be the most exciting — and risky — phase of your business. You are sharing your idea, design files, and budget with people you have never met. This guide covers how to protect your intellectual property, manage prototyping costs, and choose the right factory partner for product development.
Before you send your design files, technical drawings, or even a detailed description of your product idea to any factory, sign a legally enforceable agreement. In China, this means an NNN Agreement (Non-Disclosure, Non-Use, Non-Circumvention) — not a Western NDA. Chinese courts enforce NNN agreements far more reliably than standard NDAs, which are often considered unenforceable under Chinese law.
A proper NNN agreement must be bilingual (Chinese and English), include specific penalties for breach, and name the correct legal Chinese entity. Signing with "ABC Trading Co." when the factory's legal name is "XYZ Manufacturing Ltd." means the agreement is worthless.
Prototyping often requires paying for molds, tooling, and samples — costs that can run from hundreds to tens of thousands of dollars. Before you commit to tooling costs, verify that the factory:
When you pay for molds, you own the molds — even if the factory stores them. Your contract must explicitly state:
Without these clauses, a factory could hold your mold hostage if you try to move production elsewhere — or use your mold to sell your product to other buyers.
First-time product developers routinely underestimate prototyping costs. Typical prototyping expenses include:
If your product has multiple components (e.g., a plastic housing, a PCB board, and packaging), consider prototyping with separate specialized factories. This prevents any single supplier from having your complete design, reduces the risk of your product being copied before launch, and often results in better quality since each supplier is working within their core competency.
Once you are ready for mass production, you can consolidate under one primary manufacturer — or keep components separate if it makes operational sense.
Before you commit to tooling costs or share your product design, confirm the factory is a legitimate manufacturing entity — not a trading company that will subcontract your project to unknown third parties. Our Safety Shield Report verifies business scope, operating status, and legal history so you know exactly who you are working with.