ccc botswana results, page-29

Only less than 200m deep part can consider open cast. You can see only D3U area with inferred resource at 197m deep. D3 and J area are 203m and 207m (target less than 200m but not yet) deep at this moment.

D3U area CV only 12.9MJ/kg (3080Kcal/kg), very very low quality raw coal. wash up to 20MJ/kg-4776kcal/kg(still low quality) yield 53.6%, average only 1.87m thick.

This part will be high cost and low quality coal open cast, almost worth nothing.