# Korea Single Window (Customs Data Exchange System)

*Last updated: 2026-06-25*

> Freight forwarders, importers, and exporters in South Korea use the Korea Single Window to file all trade-related government submissions—customs declarations, import licences, certificates of origin—through a single electronic portal rather than approaching multiple agencies separately.

Freight forwarders, importers, and exporters in South Korea use the Korea Single Window to file all trade-related government submissions—customs declarations, import licences, certificates of origin—through a single electronic portal rather than approaching multiple agencies separately. Operated by Korea Customs Service (KCS) in collaboration with other government bodies, the system is built on the KTNET network and connects customs, port authorities, shipping lines, and regulators in a unified data exchange. Clearance times drop significantly, and administrative overhead for cross-border shipments decreases accordingly. Unlike many national customs portals, Korea Single Window covers not only customs processing but also multi-agency permit procedures within one seamless digital workflow.

**Source:** [https://www.customs.go.kr](https://www.customs.go.kr)

## Quick Facts

| Property | Value |
|---|---|
| Term | Korea Single Window (Customs Data Exchange System) |
| Language | EN |
| Word count | 104 |
| Last updated | 2026-06-25 |
| Source | https://www.customs.go.kr |

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