Samsung Electronics has signed a stock purchase agreement of US$400 million with BYD, a Chinese electric vehicle company, which will give Samsung a 4% stake in BYD, reported Korea Economic Daily on July 15. BYD has surged to become the world's biggest electric vehicle maker with US$7.3 billion current market value in recent years. Although Samsung might not enjoy much shareholding power, it is believed that Samsung will benefit from this investment by selling electric vehicle components and delving deeper into the Chinese market despite regulatory limits in China.