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2003-6, Kaisn was established |
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2003-9, AHF started to be built. |
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2004-10, first project of AHF was built up. |
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2005-12, Kaisn got the certificate of ISO9001-2000 quality system. |
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2006-11, We signed export contract with Japanese businessmen. |
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2007-6, The signing ceremony of electronic grade hydrofluoric acid was held;In July, its pilot-plant started to production. |
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2007-9, second project of AHF started to be built. |
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