Qualification & License
| Year | License | Parts | Attestation Administration |
|---|---|---|---|
|
1983.11 |
Register of Utility Model | Sectional Boiler | Patent Administration |
|
1986.06 |
Designated as a Promising S & Medium Co. | Castings | Industrial bank of Korea |
| 1988.01 | Obtained 2-nd Grade Q/C | Casting | Industrial Advancement AD. |
| 1992.03 | Suc-Tap“ Industrial Decoration | Growth of Industrial | President of Korea |
| 1995.09 | Register of Heat-exchange M/C | Casting Material Sectional Boiler | Mayor of Incheon |
| 1998.06 | ISO 9001 : 2000 | Cast Irons | S.M.I.C.C. |
| 1998.06 | Approval of Manufacturer Certificate | Gray & Nodular Cast Iron | Det Norske Veritas |
| 1998.07 | Lloyd Certificate | Castings in Gray Iron | Lloyd Register |
| 1998.07 | Approval Certificate for Manufacturing | Castings in Gray Iron | Korea Register of shipping |
| 1999.04 | Approval of Material Manufacturers | Gray Cast Iron Cylinder Liner | Germanischer Lloyd |
| 1999.08 | Certification for Authorization & Registration | Gray Cast Iron / Alloy Cast Iron | Mitsubishi Heavy Industries. Ltd. |
| 2000.07 | B.V. Certificate | Grey Iron Castings for Various Engineering | Bureau Veritas |
| 2001.08 | Certificate of Approval | Cylinder Liners of the Material Tarkall-C | MAN B&W(MAN Energy Solutions) |
| 2001.1 | Certificate of Approval | Cylinder Liner castings for RTA Engines | WIN-GD |
| 2001.12 | Approval Certificate | Casting in Iron | R.I.N.A |
| 2002.09 | Certificate of Approval | Cylinder Liners of the Material Tarkall-A | MAN B&W(MAN Energy Solutions) |
| 2003.08 | Approval of Manufacturing Process | Gray Irons | ClassNK |
| 2004.11 | Certificate of works Approval | Tarkall-C, GJL-250, FC 250 | China Classification Society |
| 2006.11 | Certificate of works Approval | Tarkall-C, GJL-250, FC 250 | American Bureau of Shipping |
| 2007.02 | Certificate of Single PPM Quality | Cylinder Liner (MAN & WCH ALL TYPE) | SMBA |
| 2013.03 | ISO 14001:2004 | The Manufacture and Servicing of Cast Iron | SBCR |
| 2021.01 | Certificate of Approval | Castings in grey iron and spheroidal or nodualr graphite iron | Russian Maritime Register of Shipping |