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OPTECK MANUFACTURING GROUP LTD.
Movel Scientific Instrument Co., Ltd.
Shenzhen Dowdon Tech Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Guangzhou Yihua Electronic Equipment Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shijiazhuang Zeyuan Optics Co., Ltd.
Nanjing Poweam Medical Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
CPG OPTICS LIMITED
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Shanghai Aucy Scientific Instrument Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.