China No.1 Heavy Machinery Group Co., Ltd., headquartered in Fulaerji District, Qiqihar City, is one of the 156 key construction projects aided by the former Soviet Union during the First Five-Year Plan period in China and the largest heavy machinery manufacturing enterprise in Asia. Now, the company's business headquarters, design and research institute and large-scale equipment production base are all located in Dalian. Zhong Yi, known as a national treasure, belongs to a large state-owned enterprise and has made great contributions to the basic industries in China. Zhong Yi Group Co., Ltd. is a super-large comprehensive equipment manufacturing enterprise which mainly produces heavy equipment such as metallurgy, steel rolling, forging, mining, electric power and petrochemical.