Changs Ascending Enterprise Co., Ltd. engages in the research, development and manufacture of cathode materials for lithium batteries. It offers lithium-iron ferrous phosphorous oxide batteries used for grid and industrial electronic storage systems and uninterruptible power supply energy storage and back-up systems, electronic vehicles, golf cars, and forklifts, traffic light back-up, smart solar light emitting diode lighting, and portable power unit applications. The company was founded by Tun Chieh Chang and Tun Yue Chang on August 28, 1997 and is headquartered in Taichung, Taiwan.