Nilefos Minerals Limited:  Phase I: Cost of production of rock phosphate
units quantity cost/unit
US$		 cost
US$
Unit cost of excavation of rock m3 1                  3.00   3
Density of compacted earth considered mt/m3 1.75
Annual mining excavation  volume m3                   200,000                    3.00           600,000  
Annual mining excavation  tonnage mt                   350,000                  1.714           600,000  
Enriched rock phosphate produced mt                  -    
Allocation of cost for decking and shoring mt                            -                      -    
total                            -                     -    
Text Box: Since this is an open pit mining, the standard rate for excavation in hard murrum by excavator can be considered. Additional expenses incurred in decking and shoring can be about $ 3.5/MT of finished rock phosphate. Standard rate considered is 3.00 US$/m" of rock excavated.
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