CNNC Huachen Construction Engineering Co., Ltd. inherited the 21st Construction Company of China Nuclear Industry, which was established in China in the early days, and made a historic contribution to "two bombs and one boat" in China. The company has a number of general contracting qualifications and professional qualifications in nuclear engineering, housing construction, municipal administration, fire protection, decoration, steel structure, foundation and foundation engineering. It is a nuclear power backbone enterprise with high management level, strong technical strength and excellent comprehensive quality.