1 Ivanhoe Mines - Due for a breakout year in 2011 could go from minor producer (1 million tonnes of copper annually) to major producer (billion tonne copper, million ounce gold producer) and is a lot less risky than people think (even if all its operations outside of the oyu tolgoi project are a bust rio tinto's interest in that project will keep Ivanhoe's value at or above US $6.5 billion).
2 Osisko Mining - Involved in many underrated projects and its 2 largest ones could make it a 1 million ounce of gold producer quickly. Its reserves estimate is conservative and as a mid cap exploration company it could be the subject of a lucrative takeover.