Prospective deals reached 57.8 billion US dollars as the first ever China International Import Expo (CIIE) concluded in Shanghai on Saturday, said Sun Chenghai, deputy director of the CIIE Bureau. Altogether, the six-day event attracted 3,600 companies from more than 130 countries and regions as participants. In the next 15 years, China's imported goods and services are estimated to exceed 30 trillion dollars and 10 trillion dollars, respectively.