* 1983 : Established as
" STONETOWN SERVICES & TRADING Co., Ltd " for
& Flange Manufacturing
Korea Trade Promotion Association
Korea Trade Association
Korea Import Agent Association
Chamber of Commerce, Busan, Korea
* 1992 : Import Agent of China Shipbuilding
production Facility to Bronze Valve.
* 1996 : Established S.T. Engineering for Pipe
* 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
"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
* 2011 : API 6A Monogram license approved by American Petroleum Institute