Ann: Notice of initial substantial holder from IGO, page-37

Nope it doesn't matter as the Concentrator is rated at 1MT/Year at Full Capacity.
It can do 15 KTons of Concentrate per month at 86,000T of Ore.
What matters most is how much Barminco was able to mine this Quarter.
I know that there was 55KT to 60KT of ore left at 31st of March.
They mine a minimum 50KT/month or 150KT / Quarter.
1 Shipment of 10KT is Roughly equivalent to 70Kt to 80KT of Ore
at 1.3% grade and 80% recovery. So to answer your question, they
will ship 10KTplus of concentrate this next shipment. DYOR