Prospects and Opportunities for the Development of Chinese Nickel and Cobalt Industry the 13th Goldman Sachs Basic Material Conference Li Yongjun，Chairman of the board & CEO Jinchuan Group Ltd. May 16th, 2005New York   Opportunities Brought by Rapid Growth of China Economy and its Influence to the Mining Asia Mining Congress 2005 Wang Hai zhou，Vice President Jinchuan Group Ltd. March 22-24, 2005 Singapore