What is the relationship between Xishan Coal and Electricity Construction Engineering Group and Jin Xin and Jincheng? Is it a reciprocal relationship or a superior-subordinate relationship? Find a sol

What is the relationship between Xishan Coal and Electricity Construction Engineering Group and Jin Xin and Jincheng? Is it a reciprocal relationship or a superior-subordinate relationship? Find a solution Xishan Jin Xin Construction Co., Ltd., formerly known as the 405th Regiment of the China People's Liberation Army Infrastructure Corps, was established in August 1966, and was collectively transferred to other jobs in May 1983, establishing the Gujiao Third Engineering Office of Xishan Mining Bureau. In 2000, the company system reform was completed, but now people here in Xishan are still used to calling it Sanchu. Jincheng Company seems to be the eighth engineering office of the former Ministry of Coal, and it was transferred as a whole. People used to call it Bachu. The benefit of Jincheng is much worse, while that of Jin Xin is better. They are all subordinate units of Xishan, one in Gujiao and the other in Taiyuan. The headquarters of Xishan Construction Engineering Group are Mining Construction Branch, Jin Xin Company, Jincheng Company and Real Estate Development Company, and they are in charge of all construction enterprises under Xishan Coal and Electricity.