Din Tai Fung was originally a retail cooking oil business founded by Yang Bing-yi in 1958. Din Tai Fun got its name from Heng Tai Fung, the cooking oil company where founder Yang previously worked, and Din Mei oil, the oil supplier of Yang’s business. In 1972, as a result of the unsuccessful cooking oil business, half of the Din Tai Fung oil shop was turned into a restaurant where Yang and his wife started selling steamed dumplings, xiaolongbao. Gradually, Din Tai Fung’s xiaolongbao business made a bigger profit than its cooking oil business, so the founders decided to close the oil business and focus on the restaurant business. Din Tai Fung was then expanded to a 300-seat restaurant. The restaurant is originally located on Xinyi Road in Taipei City and could sell 4,000 pieces of xiaolongbao a day.