Can a third country challenge my export project that has been authorised by France ??
Yes, if it is an EU Member State and if it considers that your project threatens its security interests. Conversely, in the event that a French exporter plans to export a good from another EU State, France may oppose the issuance of the licence by that other State and initiate consultations. Finally, a non-EU country challenging a duly authorised French exporter or freight forwarder's plan to transport goods through its territory which it itself would not have authorised for export may initiate official consultations within 15 days of the issuance of the French licence (a control regime provision).
On the other hand, if it is a licence required for components of American origin, controlled as part of procedures under US domestic legislation (EAR or ITAR), France is not a party to these procedures and is generally not informed of them.
Edited on 22 June 2021