National Online (Beijing) Education Technology Co., Ltd. China Petrochemical Group Co., Ltd. is a state-owned company wholly owned by the state, an institution authorized by the state to invest and a state holding company. The company entrusts the third-party examination organization National Online (Beijing) Education Technology Co., Ltd. to organize and implement the examination. The company's main business scope includes: industrial investment and investment management; Exploration, exploitation, storage and transportation (including pipeline transportation), sales and comprehensive utilization of oil and natural gas; Coal production, sales, storage and transportation; Petroleum refining, etc.