GR Engineering Services Limited has been appointed to conduct the engineering and technical studies as part of the Roseby Copper Project Definitive Feasibility Study (DFS), for Altona Mining Limited (ASX:AOH) .
Since the completion of the positive 2009 DFS the project fundamentals and market has changed and Altona are now reassessing the project with regard to a larger tonnage plant and a bulk mining, low cut-off grade approach.