The answer was the in-situ recovery (ISR) mining method, used by roughly half the uranium mines in the world, but never before in Canada for uranium. Rather than digging the rocks up and bringing them to the surface, ISR uses a liquid mining solution to dissolve the uranium right in the ground, then pumps the dissolved solution to the surface, where the solution is transformed into yellow cake, the same finished product made at any uranium mining and milling operation.
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