The southwestern province of Guizhou, which has the most tea plantations in the country, exported almost 600 tons of tea in 2015, more than double the export volume in 2014. In 2015, Guizhou exported 598.7 tons of tea, with a total value of $36.47 million, according to the Guizhou Entry-Exit Inspection and Quarantine Bureau. This is 307.8 tons more than the volume in 2014. About 58 percent of the exported tea was black tea and Oolong tea.