The first Chinese built motor vehicle was a truck called the "Ming Sheng". It was designed by Daniel F Myers and a prototype was made at the Liao Ning Trench Mortar Arsenal, Shenyang. The prototype was completed on May 31, 1931, for Zhang Xueliang. Prior to production commencing, the factory was bombed by the invading Japanese and production never commenced. A fellow general, Yang Hucheng, patronized the inventor Tang Zhongming to make a new type of automobile engine powered by charcoal. In 1932 Tang founded the Chung Ming Machinery Co. Ltd. in Shanghai to produce the engines. Charcoal powered vehicles were mainly used during the Second Sino-Japanese War in China because of fuel shortages. Tung oil was also used during the war as a petroleum substitute. One source states that Du Yuming designed a car in 1937, but did not make it until 1943 after having been forced to move because of the war. No further information has been found about it.