South Korea and Russia are participants in the Six-party talks on the North Korea's nuclear proliferation issue. Moon Jae-in's administration has focused on increasing South Korea's consumption of natural gas. These plans include re-opening dialogue around a natural gas pipeline that would come from Russia and pass through North Korea. In June 2018, president Moon Jae-in became the first South Korean leader to speak in the Russian Parliament. On 22 June, Moon Jae-in and Putin signed a document for foundation of free trade area.