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SPOT ON. PH exports, not mines.

tails are the waste from mining - huge problem environmentally when mines shut up shop prematurely. the idea is, you mine the best quality minerals first by diggin a hole in the ground. the second grade stuff goes on the tailings > when the first grade ore is depleted, you put your tails...

....plus tails. most mines operate on a 20-45 year basis and then another 10-15 on tails. Port Hedland is more than just Iron Ore - Yardney considers the whole of WA a "one horse town" - regardless fo the fact it's the size of NSW, Qld and Vic put together.