Oak Grove ExConTec
Oak Grove ExConTec ExConTec – Origin Story: Oak Grove Coal Mine System Upgrade, Alabama Origin of ExConTec The ExConTec Computer Simulation and Analysis Program was born at this project — a 1998 upgrade study for U.S. Steel Mining’s Oak Grove underground coal mine in Adger, Alabama. The challenges of this three-flight, 8.3-kilometer system demanded a […]