COBONTECH is a leading COB company specialized in earth-leakage detection modules in South Korea. We have over 60% market share in Korea. COB (Chip On Board), designed with semiconductors and electronic components, provides users with convenience, facilitates quality control, and maximizes space by integrating them on a small board. Our products come with TUV marks. Our main customers are LS IS Co.,Ltd. and Hyundai Heavy Industries, Kohler Novita Co.,Ltd. etc. We have an affiliated research institute.