Matrix Design Group, LLC (“Matrix”) and Alpha Natural Resources (“Alpha”) were recently presented with the Mine Safety and Health Technology Innovations Award at the Sentinels of Safety Awards Presentation in Washington, DC. This National Institute for Occupational Safety and Health (“NIOSH”) award recognizes mines and companies that have made extraordinary efforts to apply technology in ways that will improve mine worker safety and health. Matrix and Alpha received the 2013 Coal Award for “Next-Generation Sensors for Atmospheric Monitoring Systems (“AMS”).” The improved air velocity, low-power methane, and flexible-use carbon monoxide (“CO”) sensors are designed for daily use in coal mines and improve mine safety by detecting potentially harmful developments in a mine’s ventilation network. The sensors were developed by Matrix for its new MX3 permissible voice and data communications system package. The sensor bundle was designed to work with a variety of existing AMS and CO monitoring systems and has the necessary features to allow post-accident functionality. “Matrix is excited to be recognized for the development of next-generation equipment as part of this important project with Alpha,” said Matrix President, Aric Pryor. “Our development team, working in partnership with Alpha engineers and mine personnel, has created an innovative set of advanced sensors that are accurate, easy to use, and work with variety of existing AMS and CO monitoring systems. We believe these sensors will offer immediate benefits for both mine ventilation management and miner safety at underground mining operations.” For more information about these advanced-technology sensors, or other Matrix safety systems, please visit www.matrixteam.com. About Matrix Design Group, LLC Matrix is a designer, developer and marketer of safety and productivity technology for use in mining and other industries. Its innovative and industry leading products include communications and tracking systems, mine atmospheric monitoring systems, belt control, and proximity detection systems. Matrix is a subsidiary of Alliance Resource Partners, L.P. (“ARLP”), a diversified producer and marketer of coal primarily to major United States utilities and industrial users.
About Alliance Resource Partners, L.P.ARLP is a diversified producer and marketer of coal to major United States utilities and industrial users. ARLP, the nation's first publicly traded master limited partnership involved in the production and marketing of coal, is currently the third largest coal producer in the eastern United States with mining operations in the Illinois Basin, Northern Appalachian and Central Appalachian coal producing regions. ARLP operates eleven mining complexes in Illinois, Indiana, Kentucky, Maryland and West Virginia. ARLP is also constructing a new mine in southern Indiana and is purchasing and funding development of reserves, constructing surface facilities and making equity investments in a new mining complex in southern Illinois. In addition, ARLP operates a coal loading terminal on the Ohio River at Mount Vernon, Indiana. News, unit prices and additional information about ARLP, including filings with the Securities and Exchange Commission, are available at http://www.arlp.com. For more information, contact the investor relations department of Alliance Resource Partners at (918) 295-7674 or via e-mail at email@example.com.