Group of 20 (G20) is an international forum for economic cooperation, on 25 September 1999 by the Group of Eight (G8) finance ministers in Washington, announced the establishment of a mechanism part of an informal dialogue within the framework of the Bretton Woods system, the Group of Eight and the rest of the original twelve important economic body composition.

The purpose of the organization is to promote between developed and emerging market countries have industrialized have an open and constructive discussion and research on substantive issues in order to seek cooperation and to promote international financial stability and sustained economic growth, in accordance with past practice , international Monetary Fund and the world Bank attended the meeting of the organization.

G20 members covering a wide range of representative and strong, the group's GDP accounted for 90 percent of the global economy, accounting for 80% of global trade, and therefore has replaced the G8 as the main forum for global economic cooperation.

Warmly welcomed the President to attend G20 Summit 2016 held in Hangzhou, China, in 2016 September 4 to 5 G20 started, Henan TIANZHIWO Well Screen factory wish the summit was successfully held!