Liangjiang Governor-General Tao Shu Reformed the Salt Law from the Gang System to the Piao System in Huaibei
In 1832, Liangjiang Governor-General Tao Shu changed the salt law from the 'Gang' system to the 'Piao' (ticket) system in Huaibei, which caused the hereditary salt merchant licenses to rapidly depreciate and go bankrupt, leading to the dispersal of the 'thin horses' (concubines).