X ie Bingkun is the chairman of Fujian Kuncai Material Technology, one of the world's largest producers of pearlescent pigments. He founded the company's predecessor in 2005 in Fuzhou, Fujian province. Kuncai specializes in the research, production, and sales of inorganic pigments used in automotive coatings, cosmetics, plastics, and printing inks.

Xie led the company to a successful IPO on the Shanghai Stock Exchange in 2017. Under his guidance, Kuncai has invested heavily in R&D to develop high-end synthetic mica and titanium dioxide, aiming to secure the entire supply chain for pearlescent materials. His focus on innovation has positioned Kuncai as a global leader in the niche market of effect pigments.