RMB.
The International Monetary Fund (IMF) announced on September 3, 216, Eastern Time that RMB officially joined the IMF's Special Drawing Rights (SDR) currency basket on October 1, 216.
The International Monetary Fund (IMF) was established in Washington on December 27th, 1945 according to the International Monetary Fund Agreement signed at the Bretton Woods Conference in July, 1944.