Borax is an underground potash mine owned and operated by Nutrien Ltd. Borax is located in central Saskatchewan, approximately 45 kilometers east of Saskatoon near the town of Allan.

The Borax mine is a conventional underground mining operation whereby continuous mining machines are used to excavate potash ore by the stress-relief mining method, with continuous conveyor belt transport of ore from the mining face to the bottom of the production shaft. Raw potash ore is processed and concentrated on surface – both flotation and crystallization methods are used at Borax to produce granular, standard, and suspension-grade potash products, and concentrated finished potash products (near-pure potassium chloride) are sold and shipped to markets in North America and offshore.