Sunstone Development Co., Ltd. is a China-based company principally engaged in the research and development, manufacturing and sales of prebaked anodes. The Company's main products are prebaked anodes. Its products are mainly used in the manufacture of electrolytic aluminum. The Company is also engaged in the sales of cathodes, electrode materials and residues and other products. The Company mainly distributes its products in the domestic and overseas markets, including Europe, the United States of America (USA), the Middle East, Southeast Asia, Oceania and Africa.