1. Changes in shareholding structure: The shareholding structure of Zhongchuang Singapore Airlines has changed, resulting in it no longer being a central enterprise. For example, central enterprises transfer their shares to other enterprises or individuals, or Zhongchuang Singapore Airlines introduces new investors through listing, resulting in changes in the ownership structure.
2. Business adjustment: Singapore Airlines has made business adjustment, so that it no longer meets the definition of central enterprises. For example, central enterprises involve important strategic areas of the country, while the business of Singapore Airlines has shifted to other areas.