Golden Star Resources dipped 5.8% last week after the stock was downgraded to sell from hold by TheStreet Ratings. Mines Management slipped 5.3%. Among others, James River Coal ( JRCC), Metalico ( MEA) and Kinross Gold Corp. ( KGC) dropped around 4.5%, 2.4% and 2.2%, respectively. However, Canaccord Genuity maintained a buy rating on Metalico last week. Steel Stocks United States Steel ( X) and AK Steel Holding ( AKS) fell 1.7% and 1.5%, respectively. However, analysts at Zacks Investment Research upgraded shares of AK Steel from underperform to neutral with a $17 price target. AK Steel has advised that a $400 per ton surcharge would be added to invoices for electrical steel products shipped in April 2011.