JA Solar Holdings Co., Ltd., together with its subsidiaries, designs, develops, manufactures, and sells photovoltaic solar cells and solar power products based on crystalline silicon technologies. The company’s principal products include monocrystalline and multicrystalline solar cells and modules. It also provides monocrystalline and multicrystalline silicon wafers; solar product processing services; and engineering, procurement, and construction services to independent power project developers and public utility companies. The company sells its products primarily under the JA Solar brand name, as well as produces original equipment for manufacturers or customers under their brand names. JA Solar Holdings Co., Ltd. sells its solar cell and module products to module manufacturers, system integrators, project developers, and distributors worldwide. The company was founded in 2005 and is based in Shanghai, the People’s Republic of China.