potash means all natural mineral salts of boron, calcium, lithium, magnesium, potassium, sodium, bromine, chlorine, fluorine, iodine, nitrogen, phosphorus and sulfur, and their compounds, occurring more than 60 m below the surface of the project lands. (potasse)
Federal laws of Canada reproduced under the Reproduction of Federal Law Order (SI/97-5); not the official version. Source: Justice Laws Website.