Hai Yong Chen

Shenzhen Yinhua Investment & Management Co., Ltd. engages in the provision of equity investment and management services. Its business includes partnership fund, contract funds, and product information. The company was founded on July 23, 2007 and is headquartered in Shenzhen, China.

Beijing Sinodynetest Science & Technology Co., Ltd. engages in the research, development, production, and sales of integrated circuit testing equipment. It also offers supporting testing and maintenance services. The company was founded on November 5, 2008 and is headquartered in Beijing, China.

Beijing SDI Science Technology Co., Ltd. is engaged in the research, development, manufacture and sale of high-precision positioning, navigation, timing, motion vector attitude measuring and direction finding products. It also provides related technology services. The company was founded by Yang Na on December 5, 2003 and is headquartered in Beijing, China.