Hi guys,
L3 has taken over as AATC's ATO last August. Not sure if they do private candidates.
You can also check out FOS in Bangkok for EASA renewals on A320/ A330. (
www.flightoperations.group)
Cheers
You can still go through Greendot Aviation to renew/revalidate your EASA rating in AATC facilities in Bangkok.