Cheng Zhibin: Male, born in 1975, assistant economist, graduated from undergraduate course. He used to be assistant category manager, head of sales department, deputy sales manager, sales director and assistant general manager of Guangzhou Langqi Industrial Co., Ltd., and now he is the deputy general manager of the company, and concurrently serves as director of Guangzhou Buffett Trading Co., Ltd., director of Guangzhou Qitian International Logistics Co., Ltd. and supervisor of Guangdong Qihua Chemical Trading Center Co., Ltd.