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OPTECK MANUFACTURING GROUP LTD.
Wincom Company Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Yiwu Wisdom Import & Export Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
GIAI PHOTONICS CO., LTD.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Henan Forever Medical Co., Ltd.
Shenzhen Dowdon Tech Co., Ltd.
Qinhuangdao Intrinsic Crystal Technology Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Shenzhen Xavier Precision Component Co., Ltd.