三河口矿业有限责任公司是上世纪八十年代组建的监狱企业,是山东省鲁南监狱的主体单位,多年来,该单位在省优秀企业家沈明云董事长带领下,经济效益越来越好,去年主营业务收入达到5亿余元,利润1.9亿余元,面对经济效益的不断提升,党委一班人早在几年前就着手高层次的追求,鼎立把企 Sanhekou Mining Co., Ltd. is a prison enterprise established in the 1980s and the main unit of Shandong Lunan Prison. Over the years, under the leadership of Chairman Shen Mingyun, an outstanding entrepreneur of the province, Sanhekou Mining Co., Ltd. has obtained more and more good economic returns, Last year, the main business revenue reached 500 million yuan, profit 190 million yuan, in the face of rising economic efficiency, party committees as early as a few years ago to proceed with high-level pursuit of the utmost to enterprises