GL Tech Co., Ltd. engages in the development, production, and sales of monitoring equipment for coal mines and large scale facilities operation state in the electric power industry. It operates through the Safety Production and Semiconductor Precision Processing & Manufacturing fields. The Safety Production field researches and produces various precision sensors, builds intelligent security systems, and provides monitoring technology solutions. The Semiconductor Precision Processing & Manufacturing field develops, manufactures, and sells precision processing equipment used in the packaging and testing of semiconductors and other microelectronic devices. The company was founded on January 22, 1994 and is headquartered in Zhengzhou, China.