D ong Wei is a Chinese entrepreneur whose wealth is derived from his family's stake in Wuhan Guide Infrared, a company that has become a leading manufacturer of thermal imaging systems. He is a key shareholder in the company, which was founded and is chaired by his father-in-law, Huang Li. The company is a major player in a high-tech and strategic industry.

Guide Infrared's thermal imaging technology has a wide range of applications, from military and surveillance use to industrial inspection and public health. The company's products, such as thermal cameras, became particularly well-known for their use in fever detection systems during public health crises. As a key member of the founding family and a director at the company, Dong's fortune is tied to the success of this publicly traded, high-tech manufacturing enterprise.