Beijing, China [Reuters] China, trying to cut dependence on imported oil, will use cassava-based ethanol fuel for cars in the southern region Guangxi in 2007, state media said. … Guangxi is China’s top cassava growing region. In April an official from its Starch Association told Reuters the regional government was studying the feasibility of such plants. All Guangxi fuel stations would be able to supply ethanol fuel made from cassava, a root vegetable also known as tapioca, by the second half of next year, Xinhua quoted the official as saying. The ethanol plants would be added to existing alcohol distilleries, it said. China is the world’s third-largest ethanol producer, after the United States and Brazil.