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    About TPPC > Certification

    QUALITY
    ASSURANCE

    ISO 9001:2015
    Date of approval：2017／11／26

    QUALITY
    ASSURANCE

    ISO 14001:2015
    Date of approval：2018／04／02

    SAFETY
    MANAGEMENT

    ISO 45001:2018
    Date of approval：2019/12/02

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