Rio Tinto to Build $803 Million Underground Mine at Western Australia's Argyle Diamond Mine

BANGALORE, INDIA--September 17, 2010--Researched by Industrial Info Resources (Sugar Land, Texas)--Leading global mining major Rio Tinto plc (NYSE:RTP) (London, England) has announced plans to invest $803 million to develop an underground mine at its Argyle diamond mine in Western Australia. In 1985, Rio Tinto began production on the Argyle diamond mine and has since then produced more than 760 million carats of diamonds.