Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link. Two out of the three major indices are trading lower today with the Dow Jones Industrial Average ( ^DJI) trading up 26 points (0.2%) at 15,572 as of Tuesday, July 23, 2013, 12:50 PM ET. The NYSE advances/declines ratio sits at 1,636 issues advancing vs. 1,285 declining with 117 unchanged. The Basic Materials sector currently sits up 0.6% versus the S&P 500, which is down 0.1%. Top gainers within the sector include Gerdau ( GGB), up 2.9%, Phillips 66 ( PSX), up 2.9%, Marathon Petroleum ( MPC), up 3.0%, POSCO ( PKX), up 2.8% and Air Products & Chemicals ( APD), up 2.5%. On the negative front, top decliners within the sector include Plains All American Pipeline ( PAA), down 1.4%, National Oilwell Varco ( NOV), down 1.0%, EOG Resources ( EOG), down 0.8% and Kinder Morgan ( KMI), down 0.8%. TheStreet would like to highlight 5 stocks pushing the sector higher today: 5. Southern Copper Corporation ( SCCO) is one of the companies pushing the Basic Materials sector higher today. As of noon trading, Southern Copper Corporation is up $0.49 (1.7%) to $29.14 on average volume. Thus far, 966,408 shares of Southern Copper Corporation exchanged hands as compared to its average daily volume of 1.8 million shares. The stock has ranged in price between $28.58-$29.14 after having opened the day at $28.86 as compared to the previous trading day's close of $28.65. Southern Copper Corporation engages in mining, exploring, producing, smelting, and refining copper and other minerals in Peru, Mexico, and Chile. Southern Copper Corporation has a market cap of $23.6 billion and is part of the metals & mining industry. Shares are down 26.2% year to date as of the close of trading on Monday. Currently there are 2 analysts that rate Southern Copper Corporation a buy, 1 analyst rates it a sell, and 6 rate it a hold. TheStreet Ratings rates Southern Copper Corporation as a buy. The company's strengths can be seen in multiple areas, such as its expanding profit margins, largely solid financial position with reasonable debt levels by most measures and notable return on equity. We feel these strengths outweigh the fact that the company has had somewhat weak growth in earnings per share. Get the full Southern Copper Corporation Ratings Report now. 3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.