Canpotex is fully committed on volumes for potash sales through the end of September. A news release from Canpotex, which markets potash for Nutrien and Mosaic, says the demand is there in all major offshore markets. There is also a focus on food security and quality in many of the markets the potash marketing company serves. Potash is a fertilizer nutrient which Canpotex says helps the world grow more food.