Sunstone Development Co., Ltd. engages in the research, development, production, and sale of prebaked anodes, lithium battery anode materials, and film capacitors in China and internationally. The company offers anode products for aluminum anode products for aluminum production and electrolysis applications; battery anode materials for lithium-ion battery applications; film capacitor series for household appliances, lightning, and new energy applications; and low carbon services, such as low carbon slag anode services, full life cycle slotted anode, energy saving anode group technology, carbon asset management consulting services, and value-added disposal of electrolytes. It is also involved in the trade for the prebaked anode and petroleum coke. The company was founded in 2003 and is headquartered in Linyi, China.