I think doubling the size of Kangala (red) is conservative
The open pit (white) area adjoining Kangala, looks bigger and maybe deeper on the Eloff side
Maybe there is unexplored coal in the eloff property too.
they might have to increase the mine size if possible.
That key risk mentioned at the end of article, coal price, is offset by the large domestic (80% sales) and LT take or pay contracts, which is already set at cost plus profit arrangement. The further expansion with Eloff, Brakfontein and South Arnot will add to this.
I guess the Coal Supply Agreement for brakfontein might not be too far off either.
Maybe it will go to 50c or 60c in a couple years if coal prices sustain.