求翻译：项目占地面积20平方公里，总投资300亿元左右，分二期建成。一期投资（2011－2013年）：格林美公司牵头设立武汉城市矿产资源产业城投资有限公司，募集资金25亿元，开发10平方公里，完成城市矿产资源集散市场、公共行政区域、部分生活设施及部分产业的建设。二期投资（2014－2016年）：250亿元，开发10平方公里，通过招募国内外循环产业集团投资者进行产业投资。是什么意思？

Project covers an area of 20 square kilometres, a total investment of 30 billion yuan, phase II is completed. One-stage investments (2011-2013): Green's US-led establishment of Wuhan City investment in mineral resource industry town, raised $ 2.5 billion of funds, development of 10 square kilometers, completed distribution of mineral resources markets in cities, public administration area, part of the living facilities and some of the industry of construction. Second-stage investment (2014-2016): $ 25 billion to develop 10 square kilometers, through the recruitment of domestic and international cycling industry investment industrial group investor.