Power Master Energy Co., Ltd. manufactures and sells machinery for power generation, transmission, and distribution in Taiwan and internationally. It offers electrical testing equipment, maintenance and energy technology services, and solar power system engineering (EPC). The company also provides power plant investment, maintenance and operation management, energy storage systems, and green electricity trading services, and develops photovoltaic modules, mounting systems, and inverters under the Solar Master and Power Master brands. Formerly known as Power Master II Holdings Co., Ltd., it was founded in 1999 and is based in New Taipei City, Taiwan.