Complex sentence: For 2011,91 million dollars were budgeted to complete the prefeasibility study, leading to permit applications in 2012, environmental and engineering studies including of drilling to decide on mine design and a complete environmental baseline.
Split into simpler sentences: For 2011,91 million dollars were budgeted to complete the prefeasibility study, leading to permit applications in 2012. Environmental and engineering studies including of drilling to decide on mine design and a complete environmental baseline.