China Railway Group Limited is engaged in infrastructure construction, survey, design and consulting services, engineering equipment and components manufacturing property development, and other businesses. The Company operates its businesses through infrastructure construction, which includes railway construction, highway construction, urban rail transportation and other construction; survey, design and consulting services business, which involves in provision of survey, design and consulting services for railway, bridge and tunnel projects; engineering equipment and component manufacturing business, which provides large bridge steel structures and passenger line turnout; property development business, and other business. On March 8, 2010, it acquired China Railway Port Channel Engineering Co., Ltd. On December 27, 2010, it acquired China Airport Construction Co., Ltd. During the year ended December 31, 2010, it acquired 53% interest in RMA Energy Ltd.