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MINE DEVELOPMENT COSTS
12 Months Ended
Dec. 31, 2011
MINE DEVELOPMENT COSTS [Text Block]
4.

MINE DEVELOPMENT COSTS

Costs incurred to get the mine ready for its intended purpose and that provide benefits to future periods, net of the realized value of nominal amounts of copper sold during the development period, are capitalized as mine development costs. Costs incurred upon the attainment of the production stage, which is determined upon the achievement of levels of commercial production that are not a result of the development and testing of the mining process, are expensed as incurred.

Production of Copper from Old Dumps

The Company commenced copper cathode production from leaching old dumps in January 2008 and completed the first copper cathode sale from these operations in February 2008. Accordingly, the attainment of the production stage from residual leaching operations was achieved effective February 1, 2008. Until December 31, 2008, the capitalized costs incurred in the development and testing of the old dumps were being amortized on a straight-line basis over the expected life of production of existing ore on the old dumps which was estimated to be 5 years. In January 2009, management revised its estimate of the expected life of production from the old dumps to 3 years. Consequently the unamortized balance as of December 31, 2008 in the amount of $468,034 is being amortized on a straight-line basis over the remaining 2 years. During 2010, the Company amortized $234,017 in mine development costs from old dumps to cost of goods sold which is included in depreciation, depletion and amortization expense. As of December 31, 2010, the mine development costs for old dumps have been fully amortized.

Production of Copper from Mining of New Ore

As a result of the development and testing of mining operations for the production of new ore, the Company began producing a nominal amount of copper cathode from newly-mined ore in February 2009. The Company achieved commercial production from the mining of new ore, which was based upon substantial completion of the testing and development phase, on April 1, 2009. Upon the achievement of commercial production from the mining of new ore, the costs to operate the mine were expensed as incurred and the capitalized mine development costs associated with the production of copper from the mining of new ore commenced being amortized over the life of the mine based on a “units of production” method. As the Johnson Camp Mine attained the production stage on April 1, 2009, subsequently, no mine development costs were capitalized. During 2011, the Company did not amortize any mine development costs from the development and testing of mining operations of new ore as the all of the copper produced during the year was from residual leaching. During 2010, the Company amortized $66,136 in mine development costs which is included in depreciation, depletion and amortization expense. The balance of the mine development costs, net of accumulated amortization, for development and testing of mining operations of new ore was $1,671,646 as of December 31, 2011 and 2010.