Ji Jun Guo

Dynex Power, Inc. engages in the design, manufacture, and sale of industrial power equipment. Its equipment includes high power bipolar semiconductors, high power insulated gate bipolar transistor modules, high power electronic assemblies, and radiation hard silicon-on-sapphire integrated circuits. The firms power products are used in power electronic applications which include electric power transmission and distribution, renewable and distributed energy, marine, rail traction motor drives, aerospace, electric vehicles, industrial automation, and power supplies. Dynex Power was founded on June 15, 1999 and is headquartered in Kanata, Canada.

Dynex Semiconductor Ltd. designs and manufactures industrial high power semiconductors. It offers insulated gate bipolar transistor (IGBT) and diode modules, fast diodes, fast thyristors, gate turn-off thyristors, rectifier diodes, phase control thyristors, and transistors. The company was founded in 2000 and is headquartered in Lincoln, the United Kingdom.

Shanghai Yongdian Electronic Technology Co., Ltd. engages in the development, design, and sale of semiconductor chips and computer software products. Its business activities include technical consultation, equipment leasing, and import and export business. The company was founded on December 28, 2010 and is headquartered in Shanghai, China.