State-owned enterprises refer to the wholly state-owned enterprises, wholly state-owned companies and state-owned capital holding companies that the State Council and local people's governments perform the responsibilities of investors on behalf of the country respectively, while Tangshan Baichuan Intelligent Machine Co., Ltd. is a large-scale private enterprise led by high technology. The main investor is Tangshan Baichuan Zhixin Enterprise Management Consulting Co., Ltd., and the highest shareholding ratio is private, not Tangshan Municipal Government, so Tangshan Baichuan Intelligent Machine Co., Ltd. is not a state-owned enterprise.