Tianjin Port Code: CNTNJ
The UN/LOCODE port code for Tianjin, China, is CNTNJ. Function: seaport, airport.
Click a code to copy it.
CNTSN or CNTNG?
In UN/LOCODE 2025-1, CNTSN is listed as Tianjin Binhai International Apt (an airport), CNTNG as Tianjin Pt (the seaport) and CNTNJ as Tianjin (the city, with port and airport functions). Older documents and some carrier, forwarder or bank systems may still use CNTSN for the port or the city, so confirm which code your booking, shipping instructions and letter of credit use, and keep it the same on every document.
Related UN/LOCODEs
| Code | Name | Function |
|---|---|---|
| CNTNG | Tianjin Pt | Seaport |
| CNTSN | Tianjin Binhai International Apt | Airport |
| CNTXG | Tianjin Xingang Pt | Seaport |
A city can have separate codes for its port, its airport and nearby terminals or depots. Use the one that matches where the goods are loaded or delivered, and the same one on every document.
How to write it on your documents
- Commercial invoice and packing list: Port of loading / discharge: Tianjin, China (CNTNJ)
- Shipping instructions and bill of lading: write the port name as on the booking, with CNTNJ if your forwarder asks for the code
- Letter of credit: if the credit names this port, copy its wording exactly (for example “any port in China” or “Tianjin, China”)
Other port codes in China
Source: UN/LOCODE 2025-1 (UNECE), public domain via the datasets/un-locode project. Names are shown as in UN/LOCODE, usually in the local spelling.
Common questions
What is CNTNJ?
CNTNJ is the UN/LOCODE (United Nations Code for Trade and Transport Locations) of Tianjin, China. CN is the country code and TNJ the location. Function: seaport, airport.
What is the port code for Tianjin?
CNTNJ; the same place also has CNTNG (seaport), CNTSN (airport), CNTXG (seaport). Use the code your carrier or forwarder uses on the booking, and the same one on every document.
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