The principal exports are nonferrous metals and minerals, woollen goods and other agricultural products, electric energy and certain engineering goods. Imports include petroleum and natural gas, ferrous metals, chemicals, most machinery, wood and paper products, some foods and some construction materials. Its leading trade partners include Germany, Russia, China, Kazakhstan, and Uzbekistan. After Beijing launched the Belt and Road Initiative (BRI) in 2013, China has expanded its economic presence and initiated a number of sizable infrastructure projects in Kyrgyzstan.