want asking, i am from malaysia and stay in TH, already got visa 90 days non-imm b and work permit, do we need to apply 1 year visa multiple entry or its automatic?
TLDR : Answer Summary
After obtaining a 90-day Non-Immigrant B visa and a work permit in Thailand, you must apply for an extension to convert it into a longer-term visa. The process is not automatic; you will need to provide paperwork from your employer to the immigration office. Additionally, if you intend to travel outside Thailand and re-enter, you can also purchase a multiple re-entry permit after receiving the extension.