The world's biggest single coal-to-liquid (CTL) project went into production in Yinchuan City, Ningxia Hui Autonomous Region, on Dec. 28.The project, undertaken by a subsidiary of the state-owned Shenhua Group, drew an investment of about 55 billion yuan (7.9 billion U.S. dollars). It is able to turn more than 20 million tonnes of coal to 4 million tonnes of oil products annually, including 2.7 million tonnes of diesel, 980,000 tonnes of naphtha petroleum and 340,000 tonnes of liquefied gas. [Photo/Xinhua]