China construction group is very big. Because China Construction Group includes China State Construction Engineering Corporation, China Railway Engineering Corporation, China Railway Construction Corporation, China Communications Construction Group Co., Ltd., China Metallurgical Science and Industry Group Co., Ltd., China Electric Power Construction Group Co., Ltd., China Energy Construction Group Corporation, China Chemical Engineering Group Corporation and China Nonferrous Mining Group Co., Ltd. ..

China State Construction Engineering Corporation has eight engineering bureaus (No.1 Engineering Bureau to No.8 Engineering Bureau), with more than 40 subsidiaries including China Construction International, China Construction Overseas, China Construction Development, China Construction Sinotrans, China Construction Infrastructure, China Construction Railway, China Construction Steel Structure and China Construction Power.