Daqo New Energy Corp. is a Chinese company engaged in the manufacture of monocrystalline silicon and polysilicon, primarily for use in solar photovoltaic systems. The company operates a mono-Si and poly-Si manufacturing facility located in Shihezi, Xinjiang Province, China. Daqo formerly manufactured silicon wafers at a facility in Chongqing, China and photovoltaic modules at a facility in Nanjing, China. The company is reportedly tied to the use of forced labor in Xinjiang. Wikipedia