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Shenzhen Siyuan Digital Technology Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Biobase Biodustry (Shandong) Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
Foshan Sident Technology Limited
Jinjiang Jiaxing Group Co., Ltd.
GIAI PHOTONICS CO., LTD.