Is An Kai Bus a State-owned Enterprise?

Yes

According to Aiqi's inquiry, Anhui Ankai Automobile Co., Ltd. was established on July 22nd, 1997. It is a provincial state-owned enterprise controlled by the State-owned Assets Supervision and Administration Commission of Anhui Provincial People's Government. Its shares are jointly controlled by China South Locomotive Group Corporation and Suqian Municipal Government, so Ankai Automobile is a state-owned enterprise.