Central Asia Metals (CAML) is something of an anomaly among London's listed miners. It does not produce large quantities of metal, and has paid back more than it raised at its IPO in just four years. It can also produce copper for less than almost any company on earth.
In the second in our series of natural resources podcasts, natural resources writer Alex Newman speaks with Central Asia's executive chairman Nick Clarke about his company's peculiar cost profile, doing business in Kazakhstan and where to put all its spare cash.