* 1983 : Established as " STONETOWN SERVICES & TRADING Co., Ltd " for Valve
& Flange Manufacturing & Trading
Member of Korea Trade Promotion Association
Member of Korea Trade Association
Member of Korea Import Agent Association
Member of Chamber of Commerce, Busan, Korea

* 1992 : Import Agent of China Shipbuilding Trading Co.
Expand Valve production Facility to Bronze Valve.

* 1996 : Established S.T. Engineering for Pipe Line Engineering

* 1999 : ISO 9002 "Manufacturer of Valves and Flanges" approved by LLOYDS(LRQA)"
CRN - Canada Registration : Valve : OCO569.9C ADD1 
                                             Flange : OBO565.95 ADD1 

* 2002 : CE/PED approved by LLOYDS
Established STGS Plant
Established "C&J Co." casting & valve business
             South Africa Approval : Butterfly Valve 7222/145532/VH136

* 2003 : ISO 9001 "Manufacturer of Valves and Flanges" approved by LLOYDS(LRQA)"

* 2006: Corporate office expanded & renamed company as “ST & H CORPORATION”

* 2010 : ISO 14001 "Manufacture of Flanges and Butterfly Valves" approved
             by LLOYDS(LRQA)

* 2011 : API 6A Monogram license approved by American Petroleum Institute