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Tianzi Environmental Protection Investment Holding Co., Ltd.Tianjin Shi, China

Grena Usa LLCUnited States

Shanghai Shikejia Vehicle Technology R&D Co., Ltd.Shanghai Shi, China

Urumqi CRRC Rail Transit Equipment Co., Ltd.

Ningbo Quark Auto Products Co., Ltd.

Jiro Osawa,

KELLER GRUNDBAU GMBH

Suzhou Yixinyuan Optoelectronics Technology Co., Ltd.Jiangsu Sheng, China

Dalian Xinruichen Environmental Protection Technology Co., Ltd.

Welltrust Precision Technology (Wujiang) Co., Ltd.

Zhejiang Yasha Curtain Wall Co., Ltd.