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Sanken Setsubi Kogyo Co. Ltd.

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Oldong (Chaoyang) Environmental Protection Group Co., Ltd.Liaoning Sheng, China

Liaoning Provincial College of Communications

Suzhou High-tech Zone Jianjinjian Intelligent Technology Co., Ltd.Jiangsu Sheng, China

Frequency Sharp Technology Co., Ltd.

Chengdou Jingzhun Concrete Co. Ltd.Sichuan Sheng, China

Wuhu Shengke Environmental Protection Technology Co., Ltd.Anhui Sheng, China

Purelite (Dalian) Technology Co., Ltd.

X-Fiper New Material Co. Ltd.

ROTECH GROUP LIMITED