Tianneng Power International Limited, an investment holding company, engages in the research, development, manufacture, and sale of power batteries for electric vehicle market in the People's Republic... Tianneng Power International Limited, an investment holding company, engages in the research, development, manufacture, and sale of power batteries for electric vehicle market in the People's Republic of China and internationally. It operates in two segments, Manufacturing Business and Trading. The company offers two and three wheeled electric vehicle, start-stop, energy storage and backup, and special electric vehicle batteries; and lithium-ion. It also manufactures and sells lead-acid and lithium-ion batteries, electrode plates, and recycled materials; sells metal materials; and trades in materials, as well as provides transportation services. The company was founded in 1986 and is based in Wan Chai, Hong Kong.