Initially, I worked in Shengli Oilfield as the deputy director of the supply department of Shengli Oilfield. Since then, Tao Yuchun has been transferred to China Oil and Gas Hongkong Co., Ltd. as a department manager, and then to PetroChina Shenzhen Petroleum Industry Co., Ltd., and finally to become the chairman and general manager of PetroChina Shenzhen Petroleum Industry Co., Ltd., and on September 24, 2008, he became the general manager of PetroChina Kunlun Natural Gas Utilization Co., Ltd.