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Primearth EV Energy Co., Ltd. develops, manufactures, and sells power-supply systems, primarily batteries for hybrid and electric vehicles worldwide. It offers nickel metal-hydride batteries for PEV/HEV, lithium-ion batteries, and battery management systems. The company’s products include battery modules, battery electronic control units, and battery packs. Primearth EV Energy Co., Ltd. was formerly known as Panasonic EV Energy Co., Ltd. and changed its name to Primearth EV Energy Co., Ltd. in June 2010. The company was founded in 1996 and is headquartered in Kosai, Japan. As of October 5, 2005, Primearth EV Energy Co., Ltd. operates as a subsidiary of Toyota Motor Corporation.