The Council of State in France has validated the decision of privatization of Toulouse Airport, approving the purchase of 49.99% stake in the airport by the  Chinese consortium - China Airport Synergy Investment Limited (CASIL) in April 2015.

On April 16, 2019, the Administrative Court of Appeal in France annulled the decision of the sale of the stake.  The annulment was made due to three unions opposing the privatization process.

In the latest decision, the Council has stated that they consider the privatization procedure was "regular" and complied with the specifications.

China Airport Synergy Investment Limited (CASIL) is a French holding company created by the Chinese group Shandong High Speed ​​Group and the Hong Kong investment fund Friedmann Pacific Asset Management (FPAM).

Originally Casil had the option to purchase an additional 10.01% of the airport, but in 2018 the state, which holds the 10.01% decided to retain the stake thus preventing Casil to become a majority shareholder. Casil then had expressed the willingness to sell their share. Eiffage group has expressed interest in Casil´s 49.99% share.

Casil has welcomed the decision of the Council and said that it will continue the process that was started with Effiage.