1999
-Contract accomplishment for general service control valve of Uljin nuclear power generation unit 5&6 with KEPCO (T, R CLASS)
1998
-Registration as a supplier of nuclear power generation item (KEPCO : R CLASS)
-Registration as a supplier of hydroelectric & thermal electric power generation item(KEPCO)
-Registration as a supplier of hydroelectric & thermal electric power generation item(KEPCO)
1997
-ISO 9001 certification acquired (Korea Foundation for Quality)
1996
-Chosen as an eligible manufacturer for nuclear power generation facility
1995
-Chosen as a company having a domestic superior technology in the filed of control by KEPCO
1992
-New construction of the office of Samyang-ARCA CO.,Ltd.
1987
-Establishment of Samyang-ARCA Co.,Ltd. through joint investment between German ARCA-Regler GmbH and Samyang Comprehensive Valve Co.,Ltd.