May 24, 4:06 AM EDT
Media & Culture
Rio Tinto's U.S. coal unit could face tepid demand
By IBT Staff Reporter on 11/14/09 AT 10:12 PM
Anglo-Australian miner Rio Tinto Plc is hoping to raise $520 million by spinning off its U.S. coal business, but analysts cautioned that demand for the offering could be tepid.