If I'm correct about that I guess it roughly means that if we have $2bn of contained cobalt equivalent it might cost $1bn to build the mine, extract it and process it into a concentrate ready for refining. This would indicate a $1bn profit is likely achievable at that point. After refining the cobalt into a finished product it should have doubled in value, so as we own the refinery we stand to make a further profit of $1bn minus refinery and transport costs once the product is sold to battery manufactures for example. So the $1bn has become 3 minus refinery costs at 0.1%. If I've got any of that wrong please correct me, I know I said earlier that the resource estimate update is 6 weeks away when it's more like 9, I do make mistakes and I'm only going off previous internet research and memory