Is your Korean supplier actually licensed to export?

A company can be perfectly legitimately registered in Korea and still not be set up to export to you. Registration, export capability and customs clearance are three separate things with three separate identifiers, and buyers routinely check only the first.

Three numbers, three purposes

The first is what everything else hangs off, and the one to check first — if a company is not registered, or has suspended or closed, nothing else matters. The structure of that number is worth understanding on its own.

The trade business number

The 무역업고유번호 is issued by the Korea International Trade Association. Obtaining one is administratively light — a registration, not a licence earned through inspection — so its presence is weak positive evidence rather than a strong endorsement.

Its absence is more informative than its presence. A company that exports regularly will have one and will quote it without hesitation. A manufacturer that has only ever sold domestically may not, which does not make it a bad supplier but does mean you are its experiment. Someone will have to handle export documentation, and if it is not them it is you, or an agent you pay.

The customs code

The 통관고유부호 identifies a party clearing goods through Korean customs. A supplier without one is not necessarily blocked from exporting — a forwarder or trading agent can clear on their behalf — but it does confirm there is another company in the chain, with another margin and another handoff where things go wrong.

This matters most when something needs correcting. If the exporter of record is not your supplier, a documentation error has to be fixed by a company you have no contract with and no leverage over.

What to do with the answers

• No trade number, first-time exporter: workable, but budget for an agent and expect the first shipment’s paperwork to be slow.
• Trade number, no customs code: normal for smaller manufacturers. Find out who clears, and get that company’s name.
• Both, and prior shipments to your region: the straightforward case.
• Reluctance to discuss any of it: the answer you were looking for.

None of this replaces confirming the company is registered and trading in the first place. That check takes seconds and rules out the failures that cost the most — start with the registration status lookup, then work outwards.