E-gates arrivals currently only for Singapore & Hongkong passports.... however biometrics must be registered no more than 3 months ago otherwise need to join the manual counter.
Currently the E-Gates are only for Thai Citizens and Singapore & HongKong passport holders. However these SG & HK passport holders must have travelled to Thailand not later than 3 months ago.
The biometrics records are expunged after 3 months so you need to register again at the manual counters on arrival.
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