We conduct artificial reefs facilities, dredging and reclamation, hydrographic survey (survey for correction) to be implemented by the owner of the project, dangerous voyage survey and perform high-quality hydrographic survey.
 
Nautical Chart Production
 
A nautical chart is a navigational guide map that shows water depths, rocks, underwater obstacles, the shapes of islands, port facilities, lighted buoys, offshore targets, tides/tidal currents/ocean currents for the safety of vessels at sea. Therefore, it is produced scientifically through very accurate surveying. Recently, in fact, we began publishing electronic navigational charts equipped to which state-of-the-art technologies are applied.
 
Inspection Survey for Marine Construction

We conduct marine precision survey and submarine topographic survey at the offshore for development of harbor, maintenance dredging, submarine cable works, pipeline relocation works, etc. and checking progress of works, feasibility study for works, integrity assessment and measuring volumes of works.
 
Submarine Pipeline Single Point Mooring (SPM) Chain and Pipeline End Manifold (PLEM)

An accurate survey with precise measurement that minimizes errors can be made using a vessel equipped with multi-beam and patented technology.  We also conduct services of survey for correction.
 
Survey Result
 

► Multi-beam Echo Sounder (SeaBat 7125)

- Working Frequency  : 200㎑
- Vertical Resolution  : 6mm
- Beam Interval : 0.5°
- The number of  Beam : 258
- Obtaining maximum depth : 9,600/sec
- IHO Special order requirements
- coverage : water to a depth of 200m

 


Survey Result

Hydrographic Survey, Geographic Research, Offshore
► Multi-beam Echo Sounder (SeaBat 8125)

- Working Frequency  : 455㎑
- Vertical Resolution  : 6mm
- Beam Interval : 0.5°
- The number of  Beam : 240
- Obtaining maximum depth : 9,600/sec
- IHO Special order requirements
  (IHO, International Hydrographic Organization)
- Quantity : 2
The Dual Multi-beam system was introduced to Korea for the first time since 2006.