Enyu Zhang

Jiangxi Feilong Rock Bit Manufacture Co., Ltd. engages in the design, development, production and sale of drill bits. It offers drilling roller bits, diamond drill bits, core drill bits, and oil drilling accessories. Its business activities include mechanical and technical consulting services, production and sale of mechanical equipment, plant and equipment leasing services, and import and export business. The company was founded on September 26, 2006 and is headquartered in Yichun, China.

Shanghai Zhongman Investment Holding Co., Ltd. engages in industrial investment, investment management, the provision of investment consultation services, as well as import and export of goods and technology. The company was founded on July 18, 2010 and is headquartered in Shanghai, China.

Shenzhen Chargerlink Technology Co., Ltd. develops charging grid technology for the electric vehicle industry. The company is based in Shenzhen, China. The Chinese company was founded in 2014 by Zhen Fei Wang.