RIO Tinto has joined the growing ranks of major miners lured to Papua New Guinea. It did not make any grand announcements on the matter but has picked up at least three tenements.
See http://www.pngindustrynews.net/storyview.asp?storyid=8682927§ionsource=s0.
(Article also mentions Barrick Gold, BHP Billiton and Xstrata.)