Z hang Wanzhen is the chairman of Chaozhou Three-Circle Group, a leading manufacturer of advanced ceramic components and electronic parts. He started his career at the humble age of 16 after finishing junior high school, joining the company when it was a small state-owned radio factory founded in 1970. Through decades of dedication, he rose through the ranks and played a pivotal role in the company's restructuring into a private enterprise in 1992.

Under his leadership, Three-Circle Group has become a global leader in high-tech ceramic products, including ceramic ferrules for fiber optics and ceramic packages for semiconductors. The company listed on the Shenzhen Stock Exchange in 2014. Zhang's management philosophy emphasizes technological innovation and quality control, which has secured the company's position as a key supplier to major electronics firms worldwide.