Ao Xiaoqiang was born in Beijing, China, China. Ao Xiaoqiang chairs Beijing SDL Technology, a supplier of environmental monitoring equipment to such industries as power, steel and chemicals. Beijing SDL's business partners include Korbi of South Korea, with which it has a water-monitoring equipment joint venture. Ao initially worked as an engineer at Beijing Beifen-Ruili Analytical Instrument before quitting in 1998 to start his own business. SDL listed at the Shenzhen Stock Exchange in March 2012.