Why would a Chinese supplier be able to block my shipment over a trademark?
China operates a first-to-file trademark system under the China National Intellectual Property Administration (CNIPA). China generally operates on a first-to-file basis for trademarks. In practical sourcing terms, the party that files first in China may control the Chinese trademark position for the relevant class, even if the foreign brand developed the product or already holds registrations in the US, EU, or elsewhere.
Sellers in r/Alibaba and r/Business_China report two versions of this: (1) the supplier registers the exact brand name and logo after the buyer starts placing orders, before the buyer has registered in China; and (2) the supplier registers a Chinese-character version or phonetic transliteration of the foreign brand name, which may create a customs and enforcement problem if it covers the relevant goods class.
When an export shipment is alleged to bear a trademark the exporter is not authorized to use in China, customs may detain it under the applicable IP enforcement framework. The exact handling depends on the registration, the goods, and the customs post.
The Octo China IP Risk Screen
Four checks before handing any brand asset — name, logo, color system, or distinctive product design — to a Chinese manufacturer.
| Step | What to check | Where to check |
|---|---|---|
| 1. CNIPA trademark search | Search the exact brand name, logo, and any Chinese-language versions in the CNIPA trademark database. Also search your product category (Nice Classification classes relevant to your goods) under the manufacturer's legal entity name and registered address. | CNIPA Trademark Search System (tmss.cnipa.gov.cn) — free public access. Search both your brand name AND the supplier's entity name as applicant. |
| 2. Supplier entity cross-check | Look up the supplier's full registered company name (工商名称) via SAMR's National Enterprise Credit Information System (gsxt.gov.cn). Compare the name to the CNIPA applicant name on any trademarks you find in your product category. A match between the trademark applicant and your manufacturer is the primary risk signal. | gsxt.gov.cn — free public access. Requires the supplier's registered Chinese entity name. If the supplier will not provide it clearly, treat that as a risk signal and verify the entity before proceeding. |
| 3. Product category scope review | A trademark registration is class-specific. Check whether the filed trademark covers the Nice Classification class for your goods specifically (e.g., Class 7 for machines, Class 9 for electronics, Class 25 for clothing). A trademark in a different class may not block your export. | Cross-reference the CNIPA result against the WIPO Nice Classification for your product category. |
| 4. IP-ownership clause in the contract | Before production starts, the contract with the supplier should include explicit language that: (a) the buyer owns all IP associated with the brand name, logos, and product designs it provides; (b) the supplier agrees not to register, apply for, or assist any third party in registering those marks in China or any other jurisdiction; (c) any supplier-filed registrations related to the buyer's brand assets must be disclosed immediately and, where legally enforceable, assigned or otherwise dealt with under the contract. A China-practice attorney should draft this language. | This is a contractual provision, not a government check. A qualified China-practice attorney (not the supplier's lawyer) reviews the clause for enforceability under Chinese law. |
Red Flags Before You Place the Order
- The supplier avoids sharing the full Chinese legal entity name.
- A CNIPA search shows the factory or a related entity as applicant for a trademark in your product class.
- A Chinese-character version of your brand name appears in the CNIPA database.
- The supplier pushes for production to start before IP terms are signed.
- The contract is silent on brand ownership, non-registration, or assignment handling.
What to Do If Your Shipment Is Already Held
China Customs detentions under IP enforcement provisions are managed through the customs IP protection system. The process is governed by the Regulations on Customs Protection of Intellectual Property Rights (as amended).
The practical steps seller reports describe for a detained shipment:
- Obtain the detention notice from the supplier — it names the IP right the shipment is alleged to infringe, the registration number, and the customs post holding the goods.
- Engage a China-based IP attorney to search the specific trademark registration and assess whether it actually applies to your goods (class, product scope, geographic scope).
- If the supplier or a related entity holds the relevant Chinese trademark registration, that may give them significant leverage in a customs detention scenario. Whether a detention can be lifted depends on the specific registration, the goods, the customs post, and the available legal response. In seller reports, the most common resolution described is a negotiated trademark assignment agreement. Some suppliers have used the registration as leverage for a price increase. An explicit IP-ownership and non-registration clause in the original contract may improve the buyer's position, but the practical outcome still depends on the registration, the contract, and the available legal response.
- If release is not achieved, the shipment may remain detained, require rework, be returned, or face other disposal outcomes depending on the customs process and the IP claim. Confirm the actual options with China counsel and the handling customs post before accepting any outcome.
Seller reports describe 2–8 weeks as a common timeline for customs holds under IP infringement review. Timelines vary by the specific customs post and the complexity of the IP claim.
How Octo SAM Screens for IP Exposure Before Production
SAM runs the CNIPA trademark check and the SAMR entity cross-reference as part of its pre-production supplier screening, specifically for buyers bringing new brands or product designs to a Chinese manufacturer for the first time. If a risk signal surfaces — the manufacturer or a related entity holds a trademark in your product category — SAM surfaces it before any deposit is paid, not after the goods are detained.
Before the deposit moves, check whether the factory or a related entity already controls your mark in China. See how SAM runs that screen before production starts →