青幫
The Green Gang was a major financial supporter of Chiang Kai-shek, who became acquainted with the gang when he lived in Shanghai from 1915 to 1923. The Green Gang shared its profits from the drug trade with the Kuomintang after the creation of the Opium Suppression Bureau. Chiang Kai-shek's brother-in-law and financial minister T. V. Soong also partnered with the pro-Chiang Green Gang to pressure Shanghai banks to buy up national securities. In the last two years of the Nanjing Decade, the Green Gang continued to pressure big business to buy up national bonds, as a means of compensating for the lack of corporate tax imposed by the government.