Founded in 1956, Xinwen Mining Group Co., Ltd. is a large enterprise group with state-owned assets as the main body, coexistence of various ownership systems, coal as the main body and common development of various industries. It is now directly supervised by the state owned assets supervision and Administration Commission of Shandong Provincial People's government and is a member enterprise of Shandong Energy Group Co., Ltd. In 2010, the group produced 37.23 million tons of raw coal and achieved sales revenue of 46.8 billion yuan. It ranks 14th among China's top 100 coal industries in 2010 and 172 among China's top 500 enterprises in 2010, and its technological innovation ability ranks 9th in the national coal industry. The credit standing of the enterprise is AAA.

China Railway 14th Bureau Group Co., Ltd., formerly known as the fourth division of the railway corps of the Chinese people's Liberation Army, was established in 1948. In January 1984, it was ordered to be collectively transferred to the Ministry of railways, and restructured into a modern enterprise group with the management system of parent and subsidiary companies in September 2001. It is a large-scale construction enterprise managed by the state owned assets supervision and Administration Commission of the State Council. It is also a backbone and leading enterprise in the field of large-diameter shield tunnel, underwater shield tunnel and urban rail transit in China.

Shenhua Group Co., Ltd. is a wholly state-owned company established in accordance with the company law with the approval of the State Council in October 1995 (1911). It is a comprehensive large-scale energy enterprise mainly engaged in coal production and sales, power and heat production and supply, coal to oil and coal chemical industry, relevant railways, ports and other transportation services.

China Railway 18th Bureau Group Co., Ltd. (China Railway 18th Bureau) is one of the first batch of special-grade enterprises for general contracting of engineering construction in China and has the qualification of contracting foreign projects and the right to operate abroad. It can undertake special grade general contracting of railway engineering, housing construction engineering, water conservancy, and Hydropower Engineering; First class general contracting of highway and municipal public works construction; first class professional contracting qualification for the tunnel, bridge, urban rail transit, airport road, and highway pavement engineering, class qualification for construction of geological disaster prevention and control engineering, etc.