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    Secondary holding
    Yunnan Precious Metals Laboratory Co., Ltd
    Sino-Platinum Test Tech(Yun Nan)Co.,Ltd.
    Sino Platinum Metals
    (Shanghai)Co.,Ltd.
    Sino-Platinum Metals
    (Yong xing) Resources Co.,Ltd.
    Sino-Platinum Gold (Yunnan)Co., Ltd.
    Sino-Platinum Metals
    Resources (Yimen) Co.,Ltd.
    Sino-Platinum Electronic Materials (Yunnan) Co.,Ltd.
    Sino-Platinum Functional Materials(Yunnan) Co.,
    Ltd
    Sino-Platinum Metals Semiconductor Materials
    (Yunnan)Co,.Ltd.
    Sino-Platinum Metals Chemical (Yunnan) Co.,
    Ltd.
    SINO-PLATINUM Metals Longsun (SHANGHAI) New MATERIALS Technology Co., Ltd.
    Sino-Platinum Industrial Catalyst(Yunnan) Co.,
    Ltd.
    Kunming Sino-Platinum
    Metals Catalyst Co.,Ltd.
    Yongxing Guiyan Testing
    Technology Co., Ltd
    ......
    Three-tier holding
    SINO-PLATINUM METALS (SINGAPORE) PTE. LTD.
    KUNMING PRECIOUS MATERIALS &
    TECHNOLOGY CO.,LTD
    Sino-Platinum Powder Materials (Shanghai) Co., Ltd.
    Sino-Platinum Biomaterials (Shanghai) Co., Ltd.
    Sino-Platinum New Energy Technology
    (Shanghai) Co., Ltd.
    Sino-platinum Metals Advanced & New Materials (shanghai) Co.,Ltd.
    Sino-Platinum Metals Refining Technology
    (Yunnan) Co., Ltd.
    Sino-Platinum Recycling Technology (Yunnan)
    Co., Ltd.
    Sino-platinum Metals Catalyst(Dongying)Co.,Ltd
    ......
    IPM
    Graduate school
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