Donghui Ma is our co-founder and has served as our chief engineer since our inception, in charge of the research and development. Donghui worked as dean of research institute at SANY Heavy Vehicle Body Co., Ltd. from June 2011 to September 2015. Prior to that, Donghui worked as senior project manager at IAT Automobile Technology Co., Ltd. from June 2010 to June 2011. Donghui served as director of department of vehicle body at Jianshi International Automotive Design (Beijing) Co., Ltd. from December 2003 to May 2010. Donghui received a bachelor's degree in power engineering from Wuhan University of Technology in 1999 and a master's degree in mechanical manufacturing and automation from Shanghai University in 2003.