China's first national oil reserve base in Zhejiang Province was completed in 20o7, with a storage capacity of 5.2 million cubic metric tons. This is one of four such bases(two in Zhejiang and one each in Shandong and Liaoning) that became operational at the end of 2008, providing China with a strategic oil reserve of around 10 million tons, or the equivalent of about thirty days of imports.