| 12. 2015. |
Korean Railroad Corporation/ Seongwoo Electrical Construction |
Construction of New Beacons on the Gwangyangman Bridge between Hwanggil and Taegeum of Jecheol Lines |
| 12. 2015. |
Korea Meteorological Industry Promotion Agency |
Purchase of Marine Signal Lantern |
| 12. 2015. |
Korea Meteorological Industry Promotion Agency |
Trust Management Service of Private Beacons on Gwangan Tower |
| 12. 2014. |
Jindo Marine Transportation Office/ Bokuk |
Repair of Large Signal Lantern Rotary Device and Control Panel |
| 12. 2014. |
Korea Meteorological Industry Promotion Agency |
Trust Management Service of Private Beacons on Gwangan Tower |
| 12. 2013. |
Juhyeong Construction Ltd. |
2 Places Installation of Rotary Signal Lantern Control Panel (Rotary Device) and Illuminating Light at Sori-do Lighthouse |
| 12. 2012. |
Pohang Regional Maritime Affairs and Port Office |
Repair of Rotary Signal Lantern (KRB-670B) |
| 11. 2015. |
Incheon Bridge Co., Ltd. |
Maintenance Service of Private Beacons on Incheon Bridge |
| 11. 2014. |
Korea Development Corp., MK Electric Power Corp. |
Bridge Marks of Geomun-do Bridge between Dong-do and Seo-do |
| 11. 2014. |
Korea Meteorological Industry Promotion Agency |
Purchase of Marine Signal Lantern (LED-200) |
| 11. 2014. |
Mokpo Regional Maritime Affairs and Port Office/ Wholesale Safety |
Purchase of Remote Monitoring and Control System for Lighthouse |
| 11. 2013. |
Pyeongtaek Regional Maritime Affairs and Port Office |
Production and Purchase of Marine Signal Lantern |
| 11. 2013. |
Gunsan Regional Maritime Affairs and Port Office |
Purchase of Beacon Equipments (Flashing Apparatus) |
| 11. 2012. |
Dongnam Electric Power Corp. |
Delivery of 4 Illuminating Lights |
| 11. 2012. |
Shindong Digitech Co., Ltd |
Delivery of Fog Signals 0.5-nautical mile |
| 10. 2016 |
Jeju Regional Office of Oceans and Fisheries |
Rotary Device Improvement of Large Signal Lantern(750mm) at Udo Lighthouse |
| 10. 2015. |
Mokpo Coast Guard |
Purchase of LED Integral Signal Lantern |
| 10. 2015. |
Gunsan Coast Guard |
Purchase of Signal Lantern for Mooring Buoy |
| 10. 2015. |
Mokpo Regional Maritime Affairs ＆ Fisheries Office |
Purchase of Beacon Equipments (Signal Lantern Lens, Module) |
| 10. 2014. |
Yeosu and Taean Coast Guard |
Purchase of Simple Small Signal Lantern for Mooring Buoy |
