A staff of BYD Auto Co. introduces the electronic circuit of a BYD car during the International Electric Vehicle Expo (IEVE) held in Jeju island of South Korea, on March 6, 2015. The second International Electric Vehicle Expo kicked off on South Korea's popular vacation spot Jeju island on Friday, attracting around 70 electric vehicles (EVs)-related companies worldwide. The expo will last for 10 days from March 6 to March 15 under the theme of "E-mobility and Green Communities". (Xinhua/Peng Qian)