Ann: TNC Quarterly Activities Report, page-2

Note the lack of information on Copper Sulphate production an blaming factors which have nothing to do with production, as plant SX/Crystalisation plant is running at less than 25% of its capacity, therefore production is controlled by heap leach. They do not have enough leachable copper in the stacked ore, and leaching is slow due to very poor operational practices. Maybe if they get hold of lots of good oxide ore in the future, and good metallurgical support, they can turn this around, as they have the pad capacity available, and could easily produce 24 t/day of copper sulphate if the heaps are stacked.
In ground sulphide resources are the main game and where potential value lies.