I suspect they want to ensure the whole process is ore...

I suspect they want to ensure the whole process is ore commissioned and they have bagged some MgO before they release anything to the market. I think that's a smart thing to do. The more testing for robustness of the process, the better. It's good if they are essentially "stress testing" the process and equipment components. Last thing we want after announcing production is to have a breakdown or process failure. After all we have been through, I don't think it will matter too much if they take another week or two to fully test the equipment and process. It also would be great if they had some figures for extraction efficiency and purity/impurities. All that would have max effect to elevate the share price for a needed capital raise.. Fingers crossed!