Zhu Chuanfeng, was given a suspended death sentence by the Jinan Intermediate People's Court in

Zhu Chuanfeng, was given a suspended death sentence by the Jinan Intermediate People's Court in Shandong Province for producing and selling poisonous food, with all his personal assets seized. Zhu's two brothers received life imprisonment and their personal assets were confiscated. In March 2001, Zhu Chuanfeng and his two brothers Zhu Chuanqing and Zhu Chuanbo, invested in building an oil plant to process and sell animal oil. In 2006, they began to produce "gutter oil", which refers to oil illegally made by reprocessing waste oil or even leftovers from restaurants. It was then marketed and re-used as cooking oil. They then sold the "gutter oil" to 17 edible oil dealers in Shandong and Shanxi provinces, with a sales value of 52.4 million yuan.