June 1993, Beijing Ministry of Chemical Industry.Ma Baoping applied to Lu Xiaodi to absorb Pengyang Pesticide Factory and several other related factories in the name of Donghai to form a complete industrial chain. At the same time, he also prepared for Song Yunhui to be transferred back to Donghai.The process reform of Pengyang Factory was successful, but Song Yunhui was taken away by the police because the pesticides from Pengyang Factory poisoned people, and his forehead was hit by Ding Senxue.Song Yunhui was taken to the hospital and Ding Senxue was detained.County Public Security Bureau Chief Li Jianhai told Song Yunhui that the pesticide quality inspection conducted from April 20 to 25 contained excessive levels of phosphorus, which was the cause of the pesticide poisoning of the deceased. Song Yunhui agreed to let the police enter the factory to investigate.Vice Mayor Zeng Zhongxiang blamed Li Jianhai for not detaining the family members of the deceased, and demanded that the Pengyang Pesticide Factory be shut down and an investigation team be arranged to thoroughly investigate the poisoning incident.People who were poisoned and family members of the deceased went to the public security bureau to demand an explanation. Song Yunhui and Wang Chiheng competed to take the responsibility on themselves.Zeng Zhongxiang decided to detain Wang Chiheng and asked Song Yunhui to return to the factory to cooperate with the investigation team in conducting a comprehensive screening.Cao Zili wanted to find a classmate from the University of Chemical Technology to intercede for Pengyang Factory, but Song Yunhui thought it was better to wait for the results of the investigation team.Du Bin, Li Chengliang and other young workers were worried about Pengyang Factory. Song Yunhui reassured them and assured Wang Peng that Wang Chiheng would be released from detention as soon as possible.