RE:HB again Before the HB deal, Botswana got 10% royalty on the price of the rough diamonds. With the HB deal, Botswana got 10% royalty on the price of the polished stones.
So I guess it makes perfect sense that Botswana want to see this also in the future. In hindsight it may not have been the best set up for Lucara but it was how it was done by Eira and at the time it was communicated as a positive thing.