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OPTECK MANUFACTURING GROUP LTD.
Guangzhou Haike Outdoor Sport Co., Ltd.
Qidong Perfect Precise Tools Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Shenzhen Newerton Technology Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
GIAI PHOTONICS CO., LTD.
Shenzhen Haiwang Sensor Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Shenzhen Slinya Electronic Co., Ltd.
VY Optoelectronics Co., Ltd.
Nanjing Poweam Medical Co., Ltd.