Has the characteristics of large-scale modern coal chemical projects, investment cost is high, we expect the 2013-2017 only coal to olefins, coal and natural gas, coal preparation of ethylene glycol and coal to oil the four types of new coal chemical projects with a total investment will exceed 1 trillion; model coal chemical industry high added value of the product, market gap is big and good prospects for the is our country optimizing energy structure, ensure energy security is one of the most important ways; considering the technology mature degree, economy, market space factors, we believe that coal gas and coal to olefins the best prospects for the development of.