C-Tech United Corp. designs and manufactures lithium battery modules through its subsidiaries in Taiwan, China, South Korea, and internationally. Its product lineup includes battery modules for e-bikes, e-motorcycles, ATVs, and automated guided vehicles (AGVs), as well as battery power systems such as UPS and BBU modules, and energy storage systems (ESS). The company also offers design, development, build, delivery, and management services. Founded in 1985, C-Tech United Corp. is headquartered in New Taipei City, Taiwan.