Rio Tinto plc


Amarillo Gold CEO Buddy Doyle (right) with geologists at the Mara Rosa gold project in Brazil's Goias state. Photo by Amarillo Gold

Buddy Doyle leads Amarillo Gold

Seven years in the malaria-infested rainforests of Papua New Guinea and six years in Canada’s Arctic led Buddy Doyle and his exploration teams at Rio Tinto (RIO-N, RIO-L) to the two biggest discoveries of his career: the 30-million-oz. Minifie…



Exploring at Cluff Gold's Baomahun gold project in Sierra Leone's Bo district, 180 km east of the capital Freetown. Photo by Cluff Gold

Mining risks and rewards in Africa

A record number of delegates descended on Cape Town in early February to hear about new African investment opportunities as countries continue to stabilize and open up, though risks remain. 


Entre Gold starts strong at Ann Mason

Entrée Gold’s (ETG-T, EGI-X) first diamond drill hole at its 100%-owned Ann Mason  porphyry copper-molybdenum deposit in western Nevada’s Yerington district returned 988 metres of copper mineralization in what Greg Crowe, the…


EMED revives Rio Tinto mine in Spain

In six years, Cyprus-based EMED Mining (EMD-T, EMED-L) has grown from being little more than a concept to a company with very real plans to restart copper production this year from the historic Rio Tinto open-pit copper mine in southwestern…


Entree Gold is “sitting pretty”

Entrée Gold (ETG-T, EGI-X) is “strongly undervalued” given the potential for it to sell its Mongolian assets to Ivanhoe Mines (IVN-T, IVN-N) or Rio Tinto (RTP-N, RIO-L), Christopher Ecclestone of Hallgarten & Co. argues in a…


Rio offers A$3.9 billion for Riversdale

Vancouver – Rio Tinto (RIO-N, RIO-L) wants more coal: the major has offered A$3.9 billion for Riversdale Mining (RIV-A), an Australian coal company with one mine in operation, one in construction, and one primed for development.






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