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Alan McKellar Stein, PhD
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Ronger Electric Group Co., Ltd.Hunan Sheng, China
Zhejiang Zhongqi Optoelectronics Co., Ltd.Zhejiang Sheng, China
Xinjiang Western Hoshine Silicon Industry Co., Ltd.Xinjiang Uygur Zizhiqu, China
Pontarolo Engineering SpAItaly
Yunnan Xiangyun Zhongtian Antimony Industry Co. Ltd.
Daliantongfa Integrity Technology Co., Ltd.
Hid Global Ireland Teoranta