| Base maintenance: | Yesan heliport |
| Base and line maintenance: | Agusta A119 |
| AgustaWestland AW139 | |
| Bell 204/205 | |
| Bell 206B JetRanger | |
| Bell 206L LongRanger | |
| Bell 212 | |
| Bell 214 | |
| Bell 222 | |
| Bell 230 | |
| Bell 412 | |
| Sikorsky S-76 | |
| Sikorsky S-92 |
Leonardo, Bell and Sikorsky
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| UI Helicopter | South Korea | Aeromedical Services, Aircraft Painting, Aircraft Parts, Component Repair, Modifications, Testing/Analysis |
| UI Helijet | South Korea | Charter |
| UI International | South Korea | Aircraft Sales |
| UI International | South Korea | Aeromedical Equipment, Aircraft Parts, Avionics Systems, Helicopters Sales/Acquisition, Importation Services |
