Hyundai Oil Refinery Co.   CEM(Continuous Emission Monitoring), Ambient,Water Quality,
  DAS System
Hyundai Petrochemical Co.   CEM, Ambient, Water Quality, DAS System
Hyundai Electronics Industries Co.   IMS Monitoring System for control Process
Hyundai Motor Company   CEM, DAS System
SamSung Electronics Co.   CEM, DAS System
SamSung General Chemicals Co.   CEM, Ambient System
LG Chemical Co   CEM, Water Quality, DAS System
LG Caltex Oil Corporation   CEM, Water Quality, DAS System
LG Carbon   CEM, Water Quality, DAS System
LG Petrochemical Co.   CEM, Water Quality, DAS System
Hanwha Chemical Corporation   CEM, Water Quality, DAS System
Hanwha Energy CO.   CEM, Water Quality, DAS System
Hanwha Corporation   CEM, Water Quality, DAS System
Hanwha Octanol   CEM, Water Quality, DAS System
YuKong Limitted   CEM, Ambient Analyzer
DCM Deawoo   CEM, DAS System
Dongyang Nylon   CEM, DAS System
Daelim Industry Co.   CEM, DAS System
Hyosung Life Industry Co.   CEM, Water Quality System
Hankook Tire Mfs. Co.   CEM, DAS System
Hansol Co.   CEM, DAS System
Hanwha NCC   CEM, DAS System
Ssangyong Oil Refining CO.   CEM, DAS System
Shinho   CEM, DAS System
Korea Kumho Petrochemical Co.   CEM, DAS System
Kumho Shell Co.   CEM, DAS System
Korea Fertilizer   CEM, DAS System
Korea Electric Power Corporation   E.P Control System
  (Taean, Samchupo, Hadong, Tonghae, Dangjin)
Government Agency   Ambient System (Seosan, Jeju, Jeonju, Chinju, Kunpo, Ulsan)
Waste Incineration   Stack DAS System (Changwon, Busan, Dalsung)