Yes State-owned enterprises refer to enterprises in which the state holds more than 50%. According to Aiqi, Lanhai Fine Control New Materials Technology (Qingdao) is owned by China Ocean Engineering Research Institute (Qingdao) 100%, so it belongs to a state-owned enterprise, and its address is located at Room 60 1 Building 77, Jinshajiang Road, Huangdao District, Shandong Province.