Since its establishment in 1998, Sinopec Group, China's largest integrated energy chemical enterprise, has been sticking to the principle of'developing the petrochemical industry and building core businesses' and actively promoted the development of its ethylene business under the favorable conditions of opportunities and industrial status. In particular in recent years, the group helped China to be the second largest ethylene producing country in the world by the way of importing-learning and absorbing-integrating and innovation through giving more attention to technology innovation, developing its comprehensive advantages, promoting integration between refining and chemical processes.