North America
Spreadtrum Communications Inc (US)
Nuctech Company Limited (Panama)
Technovator International Limited (US, Canada)
TongFang Global Inc. (Hong Kong)
Chengzhi Shareholding Co Ltd (US)
Tsinghua University Press (US)
Tus-Holdings Co Ltd (US)
CapitalBio Corporation (US)
Zehua Chemical Engineering Co Ltd (US)