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any expense, or portion of any expense, that is not a Canadian exploration expense, incurred by the taxpayer after March 20, 2013 for the purpose of bringing a new mine in a mineral resource in Canada, other than a bituminous sands deposit or an oil shale deposit, into production in reasonable commercial quantities and incurred before the new mine comes into production in such quantities, including an expense for clearing, removing overburden, stripping, sinking a mine shaft, constructing an adit or other underground entry or drilling a well for the extraction of lithium from brines,