Headquartered in Beijing, China Construction Bank went public on the Hong Kong Stock Exchange in 2005 and listed shares in mainland China in 2007. Central Huijin Investment, China's sovereign wealth fund manager is the largest shareholder with a 57% share. Fullerton Financial Holdings (a subsidiary of Temasek) is the company's second-largest shareholder with a 5.8% stake. CCB strives to provide customers with comprehensive financial services. Other nonbank businesses contribute less than 1% of operating profit before tax. Corporate banking, retail banking, wholesale banking, and other business segments accounted for 24%, 45%, 27%, and 3% of profit before tax, respectively, and 39%, 38%, 14%, and 9% of total revenue in 2018.