L i Haizhou is the founder and chairman of Shenzhen Zhaowei Machinery & Electronics, a company he established in 2001. Based in Shenzhen, the firm specializes in the design, development, and manufacturing of micro-drive systems and precision transmission components. These high-precision parts are critical for various advanced technologies, including automotive electronics, smart home devices, medical equipment, and robotics.

Under Li's leadership, Zhaowei Machinery has become a leading supplier in the niche market of micro-transmission systems, providing essential components for telecommunications (such as 5G base station antennas) and consumer electronics. The company's strong focus on research and development has secured its position in the supply chains of major tech companies. Li operates the business alongside his wife, Xie Yanling, who serves as vice chairman, making it a prominent family-led enterprise in China's high-tech manufacturing sector.