Chongyi Zhangyuan Tungsten Co., Ltd. engages in the exploring, mining, dressing, metallurgical processing, and powder producing activities in China. APT, tungsten oxide, tungsten powder, tungsten carbide powder, hard-facing materials, inserts, rods, buttons, and special parts under the Zhangyuan brand. The company is also involved in cemented carbide processing, deep processing, and trading activities. The company was founded in 1990 and is based in Ganzhou, China.