 At the same time, the US government extended a trade agreement with Japan for six months, then fully restored it.Under the agreement, Japan purchased trucks for the Kwantung Army, machine tools for aircraft factories, strategic materials (steel and scrap iron up to October 16, 1940, petrol and petroleum products up to June 26, 1941), and various other much-needed supplies.In a hearing before the United States Congress House of Representatives Committee on Foreign Affairs on Wednesday, April 19, 1939, the acting chairman Sol Bloom and other Congressmen interviewed Mr. Maxwell S. Stewart, a former Foreign Policy Association research staff and economist who charged that America's Neutrality Act and it's "neutrality policy" was a massive farce which only benefited Japan and that Japan did not have the capability nor could ever have invaded China without the massive amount of raw material America exported to Japan.