Nothing clear yet! HP of immigration says:
Send the mail before the renewal date 7 days to
90 DAYS REGISTRATION, ROOM 206
IMMIGRATION BUREAU,
507 SOI SUANPLU,SOUTH SATHORN RD.,
THUNGMAHAMEK SATHORN
BANGKOK. 10120
A popup of the same page informs:
Immigration 1 Division (Bangkok Immigration Division)
Service for area in Bangkok as :
- 90 Days Address report
will be moved to Government Center, Chaengwattana Road Soi 7 (close to the Department of Consular Affairs, Ministry of Foreign Affairs, Chaengwattana Road.) on Monday 28th September 2009
(Except special labor of Laos, Cambodian and Myanmar nationalities service at old office)
Location : Government Center Chaengwattana Building B , No. 120 ,
Moo 3 , Chaengwattana Road , Tungsonghong Sub-District , Laksi District, Bangkok 10210
But where to send your 90-days report in Korat? Probably the mail will still be delivered when addressed to the old address
North Eastern Region Immigration Center
TOT Public Co. Ltd. Office
118 Moo 10, Mitraphap Road,
Tambon Khok Kruat,
Amphoe Muang,
Nakhon Ratchasima 30280
But a new address should be published.