NEW YORK ( TheStreet) -- Freeport-McMoRan Copper & Gold ( FCX), Goldcorp ( GG) and Newmont Mining ( NEM) are among metal and mining stocks that received an upgrade on fourth-quarter earnings per share estimates over the past four weeks.The run-up in copper, silver and gold prices during the fourth quarter prompted analysts to upgrade the earnings potential of the relevant stocks. We have not included North American Palladium ( PAL), Stillwater Mining ( SWC), AngloGold Ashanti ( AU) and ArcelorMittal ( MT) in this list, although they received a great EPS revision, because only a few analysts cover these stocks for adjusted earnings per share upgrade. Analysts expect the following 10 metal and mining stocks to provide attractive investment returns during 2011, based on the upside implied from their respective 12-month price targets. These stocks are expected to gain in the range of 23%-40% over the next 12 months, with a mean upside value of around 20%. In addition, most of these stocks received favorable buy recommendations. The stocks are stacked by percentage of EPS upgrade in ascending order.