Yingli is currently one of the largest manufacturers of PV products in China as measured by annual production capacity, with an annual production capacity of 200 megawatts of polysilicon ingots and wafers, 200 megawatts of PV cells and 200 megawatts of PV modules, as of July 2007 . Its products and services substantially cover the entire PV industry value chain from the manufacture of multicrystalline polysilicon ingots and wafers, PV cells, PV modules and PV systems to PV system installation.

In the whole vale chain, our company can improve products quality continuously by material sorting, mutual controlling of each step production line, and strict inspections of each process.