This measure would phase out the corporate tax credit for pre-production mining expenditures. The way the phase-out works is that it is divided into two types of expenditures. One is the pre-production exploration expenditures, which we can think of as the grassroots, actual exploration-type expenditures. The other type of expenditure is the actual development expenditures, such as removing overburden and that kind of thing.
For the exploration expenditures, the 10% rate is reduced to 5% for 2013 and then the credit is not available after that.
For the development expenses, the rate is 7% in 2014, 4% in 2015, and then it won't be available in the years subsequent to that.