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Tourism Authority of Thailand is reportedly in talks with Air Belgium to launch a route to Bangkok next summer (article in French) : https://www.gavroche-thailande.com/thailande-tourisme-la-thailande-devrait-recevoir-23-millions-de-touristes-par-mois-jusquen-mars/?fbclid=IwAR2eJL6C6YP3IjJws6s8YUHW5-...

SN already flies twice daily to Munich

These are the registrations while in storage, nothing definitive.
We don't even know for how long they will be leased; no need to register an aircraft in Belgium for - let's say - a single month of operation with Air Belgium.

Hi, a few flights are planned in August and then no more.
Quite surprising, to say the least.