LDK Solar Co., Ltd. (LDK Solar) is a manufacturer of multicrystalline solar wafers. The Company sells multicrystalline wafers globally to manufacturers of photovoltaic (PV) products, including solar cells and solar modules. It produces and sells multicrystalline solar wafers between 180 and 220 microns in thickness. In addition, the Company provides wafer processing services to monocrystalline and multicrystalline solar cell and module manufacturers. It manufactures multicrystalline ingots from polysilicon feedstock in its directional solidification system (DSS) furnaces as an interim step in producing wafers. In addition to using solar-grade virgin polysilicon, the Company also uses other polysilicon materials from various sources in its ingot manufacturing process. In addition, it also sells polysilicon materials, which include ingots and polysilicon scraps. In July 2009, the Company announced the acquisition of a 70% controlling interest in Solar Green Technology S.p.A.