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    ISO 45001:2018

    Tokuyama Chemicals (Zhejiang) Co., Ltd.
    No. 555, Yashan West Road
    Zhapu Economic Development Zone, Port
    Jiaxing
    Zhejiang
    314201
    China
    BSI logo

    Certificate Number: OHS 796394
    Scope: The manufacture of fumed silica, trichlorosilane, silicon tetrachloride, isopropanol, Tetramethylammonium Hydroxide.
    气相二氧化硅、三氯硅烷、四氯化硅、异丙醇和四甲基氢氧化铵的生产。

    Original Registration Date Effective Date Last Revision Date Expiry Date
    2024-01-24 2024-12-06 2025-11-21 2027-12-05