China OOB21 and OOB14 v.11

[Pibwl]

I've found an excerpt from the book:

The Soviet Union refused to deliver weapons to the Chinese CP during the Sino-Japanese War and thereby significantly damaged relations with the Chinese comrades. (...) The Chinese Communists thus had to accept the fact during the war that practically all Soviet aid between 1937 and 1941 went to the Nationalist Government. The only case of a weapons shipment from the USSR to the CCP that has become known involved 6 antiaircraft guns and 120 machine guns that were delivered in early 1943 through the KMT to Communist units in the Manchurian-Mongolian border area.

As for Soviet deliveries to Nationalists:

The last shipment of military goods was clearly delivered in August 1941. In October 1941, the Soviet Union declared that it was no longer in a position to make further aid deliveries, because of its own war against Germany.

Unfortunately, still there's no part on eventual arms deliveries in 1945. However, another chapter says: "The Sino-Soviet Treaty of Alliance of August 14, 1945: Moscow's betrayal of Chinese Communists".