Jun Ma

Wuhan Eoptics Technology Co., Ltd. engages in the research and development, and sale of optical instruments and equipment. Its products include ellipsometers, reflective film thickness gauges and meters, and optical components. The company was founded on September 24, 2013 and is headquartered in Wuhan, China.

Shanghai Precision Measurement Semiconductor Technology, Inc. engages in the research and development, production, and sale of semiconductor test equipment. Its products include integrated, micro oleo face down, single and dual module, and high performance film thickness and optical critical dimension measurement systems. It also offers laser cutting equipment for organic light-emitting diode panels. The company was founded on July 3, 2018 and is headquartered in Shanghai, China.