Mate, I agree with you, but in the immediate term, the manipulation of silver is of little import to CCU's survival as a company. It's out of their hands. All they can do is concentrate on getting the stuff out of the ground at a cost that allows them to make a profit at the current market price.
They have made a great case for their mine and the underlying silver demand without referring to the disconnect in the markets, which seems to be gaining a bit of a toehold in the mainstream consciousness.
CCU Price at posting:
12.5¢ Sentiment: Buy Disclosure: Held