Chuanfu Wang founded BYD in 1995,Just five years after it opened its doors, BYD became one of the world's largest cell phone battery manufacturers, making batteries for iPods, iPhones and low-cost computers, and cell phone handsets and parts for majors like Nokia and Motorola. In 2003, BYD entered the auto-making business by buying a near defunct state-owned car company, and went public on the Hong Kong exchange in 2007.Now,BYD is the world's largest producer of rechargeable batteries and a major car manufacturer in China.