Rio Tinto (LSE: RIO) (NYSE: RIO.US) is reviewing — and likely looking to sell — its interest in a copper mine that’s currently valued at little more than £50 million. Chump change for a £63 billion behemoth, but what if I told you it once operated one of the largest copper mines in the world..?
https://youtu.be/7sRZgUQcM_4