To answer the question about demand, Mr. Venman spoke earlier about a number of studies that we have done recently. They indicate that there was a global demand, up to 1,400 vehicles. That's perhaps a little optimistic. We have also seen other studies, but there is certainly a demand from mining and exploration companies and from a number of countries. We estimate that it will involve 200 to 300 vehicles, at least, and that the number could rise upwards to 1,400. So there is a demand, which has been identified in a number of studies we've looked at recently.