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       International exchanges and cooperation are important ways to improve the competibility of a scientific and technological enterprise, as a result, we have been attaching great importance to overseas market exploitation, and taking all chances seeking for the establishment of partnership with first-class foreign companies. We have been practicing the principle of “Mutual Benefit and Mutually Complementarity”, and benefited from various forms of cooperation with international licensors and engineering companies, such as Amec，Toyo，Jacobs（AK，Bechtel，Rhodia，Dupont, JGC, Bayer, BASF, P&G, AP, Dow, Dow-corning, Shell, Akzo- Nobel,  Rotary, Gargill,  Lonza,  Husman, DSM, Henkel, PPG, Sigma-Aldrich,  PQ,  Clariant,  LG,  SK and Mitsubishi.