South Boulder achieves high-purity grades at Colluli

Following a pilot test, which formed part of a definitive feasibility study (DFS), Canadian potash producer South Boulder Mines found that its Colluli project achieved ultrahigh potassium sulphate purity grades of 98%, with typical industry product being only 94%. The company added that the tests, which were conducted in March, showed that the project had “exceptionally low” chlorine levels at less than 0.1%.