The first question is, is the product really inferior? In crop studies being undertaken by several universities worldwide, Polyhalite is significantly outperforming MOP.
Secondly, if it is inferior to Boulby's product, why is Boulby deepening to access the seam and produce Polyhalite itself?
Thirdly, as Sirius has sales contracts for 1.7million tonnes per annum in place, are the first two questions actually superfluous?