Founded in 2000, Xi'an LONGi Silicon Materials Corp. (LONGi Stock) focuses on research and development, production and sales of single-crystal silicon rods and silicon slices. It is among the largest manufacturers of single crystal silicon products in the world. Its products include LONGi single crystal silicon, LERRI PV, LERRI Energy, LONGi Clean energy, and a full industry chain for photovoltaics.