LDK Solar Co., Ltd. is a producer of solar wafers in terms of capacity, and a solar module manufacturer. It sells multicrystalline and monocrystalline wafers to manufacturers of solar cells and modules. Solar wafers are the principal raw material used to produce solar cells, which are devices capable of converting sunlight into electricity. It also sells solar materials, which include ingots, and other chemicals used to produce polysilicon and solar wafers. In addition, it provides wafer processing services. As of December 31, 2009, it had an annualized wafer production capacity of approximately 1.8 gigawatts. Its production operations are primarily located in Xinyu city of Jiangxi province, China. As of December 31, 2009, it had an installed annualized polysilicon production capacity of 6,000 metric tons. In July 2009, it announced the acquisition of a 70% controlling interest in Solar Green Technology S.p.A. (SGT), a system integrator in the Italian market.