Shanghai Puma Electromechanical Engineering Technology Co., Ltd.
Shanghai Ruihe Enterprise Group Co. Ltd.
Keiyo Kogyo Co. Ltd.
Shanghai Hualong Test Instruments Corp.Shanghai Shi, China
PTS Syndicate Ltd.
Hubei Three Gorges New Energy Co., Ltd.
Nanjing Lishui Electronics Research Institute Co., Ltd.
Zhejiang Dingbo Automation Equipment Co., Ltd.
Shenzhen Changlong Technology Co. Ltd.
McKinley Optics, Inc.
Neles-Jamesbury, Inc.
Yuzesen Investment Ltd.