The NIA posted this announcement, along with the fifth visa extension. I entered on a visa-free tourist entry (US citizen) on Feb 15, so my 180 days will be up in mid-August.
Originally, they said that the total period of stay could not exceed 180 days, but the new announcement that I linked above makes it sound like I would be able to stay for more than 180 days. Does this new announcement apply to tourists, i.e., will I qualify for the fourth and fifth visa extensions?
Thanks for your help!