The German Soviet Commercial Agreement (also referred to as the Nazi Soviet Trade Agreement), signed on August 19, 1939, was an economic arrangement between the Soviet Union and Nazi Germany whereby the Soviet Union sent critical raw materials to Germany in exchange for weapons, military technology and civilian machinery. It was negotiated during talks between Soviet foreign minister Vyacheslav Molotov and German foreign minister Joachim von Ribbentrop leading to the Molotov Ribbentrop Pact, which was signed four days later. The 1939 German Soviet Commercial Agreement expanded Nazi Soviet economic relations and was supplemented with the larger German Soviet Commercial Agreement in February of 1940 and January 1941 German Soviet Border and Commercial Agreement.