April 1977

Established as KumKang Precision Company.

May 1984

Registered as member company to Pusan Central Marine Equipment Association.

Dec. 1985

Registered as member company to Korea Marine Equipment Association.

Dec. 1987

Approval for Manufacturing Process for bronze castings by Korean Register of Shipping(KR).

Feb. 1991

Welding Procedure Approval for carbon steel for boilers and pressure vessels by KR.

Apr. 1991

Type Approval for fire hydrant valves by Germanischer Lloyd(GL).

Aug. 1991

Design Registration for compact ball valves to Korea patent Bureau.

Feb. 1993

Welding Qualification Test Certificate by GL.

Sep. 1993

Approval of Manufacturer Certificate for copper alloy castings (BC3 & 6) for ships and mobile offshore units by Det Norske Veritas Classification AS(DNS).

Sep. 1993

Welding Procedure Approval for Steel Plate for Boiler by KR.

Jul. 1994

Type Approval for relief valves by American Bureau of Shipping(ABS).

May. 1995

Class 2/2 Fusion Welded Pressure Vessels Manufacturer Approval by Lloyd Register of Shipping(LR).