Looking at the half-year report again, there were 4 shipments in total, of which 3 were prepayments shipments (2016 contract) which left 1 shipment that was sold under new 2017 contract pricing. (Ship in May, Paid in June)
This one shipment brought in an operating sales revenue of just under $15M however to produce that one shipment, the cost of goods sold equated to $13M, thus leaving about gross profit of under $2M per shipment under 2017 contract pricing.
View attachment 707424
As per the screenshot above (May shipment) that was recognised and as one shipment, this gave a Gross Profit per shipment.
If they ship 12 times, then roughly can say it'll give gross profit of $24M gross profit (assuming contract pricing stays the same and cost of goods sold stays the same).
Of course.. no need to take my word.. best still ask your accountant...