Why Xiamen United Respiratory Health Research Institute has no shareholders?

Xiamen United Respiratory Health Research Institute has no shareholders, which is determined by the nature of the company. This is a state-owned company, not a listed company. According to the relevant information inquired, Xiamen United Respiratory Health Research Institute was established in Xiamen by Xiamen Science and Technology Bureau, Xiamen Xiang 'an District Government and Guangzhou Tiger Eye Medical Technology Research Institute Co., Ltd., which is not a listed company and does not meet the conditions for establishing shareholders.