Du Yuesheng, also known by Dou Yu-Seng or Tu Yueh-sheng or Du Yueh-sheng, nicknamed "Big-Eared Du", was a Chinese mob boss who spent much of his life in Shanghai. He controlled China's opium trade and was the head of the Shanghai Stock Exchange, the Bank of China and the Central bank of China. He was a key supporter of Chiang Kai-shek and the Kuomintang in their battle against the Communists in the 1920s, and was a figure of some importance during the Second Sino-Japanese War. After the Chinese Civil War and the Kuomintang's retreat to Taiwan, Du went into exile in Hong Kong and remained there until his death in 1951.

Chiang Kai-shek was a Chinese politician, revolutionary, and military leader. He was the head of the Nationalist Kuomintang (KMT) party, General of the National Revolutionary Army, known as Generalissimo, and the leader of the Republic of China (ROC) in mainland China from 1928 until 1949. After being defeated in the Chinese Civil War by the Chinese Communist Party (CCP) in 1949, he led the ROC on the island of Taiwan until his death in 1975.