Ann: March Quarterly Activities Report, page-16

Related with the ponds management mentioned in the report, one question for Niu who knows about everything. After almost 5 years of the brine process concentration in the ponds which is today the level of salt of sodium and magnesium accumulated in the ponds?
I know that in other factories like SQM usually the ponds are harvesting once a year or so. In Olaroz not harvesting yet. 5 years. When? Surely the accumulated salt of sodium and magnesium are occupying a big portion of the ponds reducing the brine inventory. The same with other salts of potash, etc,