D u Jinhao is a Chinese billionaire who serves as the chairman of Zhejiang Jiemei Electronic & Technology. The company is a key supplier of components for the electronics industry, particularly thin plastic carrier tapes and paper tapes that are essential for the packaging and transport of semiconductor chips and other tiny electronic components.

He has built his fortune by supplying a critical, high-volume, but often overlooked, part of the high-tech manufacturing supply chain. As the production of semiconductors and electronics has boomed in China and across Asia, the demand for Jiemei's specialized packaging materials has soared. The company is publicly traded on the Shenzhen Stock Exchange, and Du's controlling stake is the source of his wealth.