Watford Control Instruments Ltd was established in 1947 with the aim of tackling the post-war mains supply problems of the period, which became even more acute with the introduction of sophisticated mains powered equipment. Ever since then, Watford Control has specialized in AC Voltage Stabilization and Power Conditioning, solving mains supply problems globally.

Windey is a state listed company headquartered in Hangzhou, China. It stands as one of China's earliest wind turbine manufacturers, pioneering and innovating within the country's wind energy sector. The company achieved a significant milestone by developing one of China's first grid-connected wind turbines five decades ago, marking its deep involvement in the renewable energy industry for over half a century.

Zhongji Innolight, a professional high-speed optical transceivers solution provider, is a technological innovation firm integrating the R&D, design, packaging, testing, and sales of high-end optical communication transceiver modules. In recent years, Zhongji InnoLight has maintained good revenue performance and excellent capital operations, leveraged its platform advantages, integrated industrial resources, and continuously.

Zhongrui Green Energy Technology Co., Ltd. (ZRGP) is mainly engaged in R&D, manufacturing, and sales of the lithium battery systems & battery management systems (BMS) applied in applications.