I'm not sure where you get the $300.00 per oz figure. Platinum is over $1100.00 US per oz, and the deposit is basically 1 - 1 ratio, so you have approx 400,000 oz Pt at a much higher figure. Then the Pd, plus Cu and Ni credits.
MMB Price at posting:
44.0¢ Sentiment: Buy Disclosure: Held