China United Engineering Corporation （CUC） is a large-scale scientific and technological enterprise, which was established based on the former Second Design and Research Institute of MMI, and united several national survey and design institutes with A-Class qualification, namely the Third Design and Research Institute of MMI, the Eleventh Design and Research Institute of MMI （China United Northwest Institute for Design and Research）, and the Geotechnical Investigation and Design Institute of MMI. Under the leadership of the state-owned large scale enterprise group——China National Machinery Industry Corporation （SINOMACH）, CUC is headquartered in Hangzhou.