An application for Pfizer is now opened in Samui from 1-9 Dec 2021 (Only for 1,200 people) This is for unvaccinated residents above 12 years old.
An application can be done at any Health Department in Samui: See List of Health Department in Samui here
Documents for a registration
ID / Passport
House Registration Book / Proof of work in Samui
Vaccination date on 13-15 Dec 2021 (at 09:00 - 15:00) at Central Festival Samui
Source: COVID Center Ko Samui