@Max ************
The key factor is that the bank is licensed and located in Thailand, regulated by the Bank of Thailand (BOT), not necessarily Thai-owned. Foreign-owned banks operating branches or subsidiaries in Thailand, such as UOB (United Overseas Bank, Singapore-based but with a full Thai subsidiary), qualify as long as the account is opened in Thailand and holds THB. UOB Thailand is commonly used by expats for this purpose, including for retirement visa extensions, and there are no official restrictions based on foreign ownership. Other examples include HSBC, Citibank, or Standard Chartered, which are also accepted. Purely Thai-owned banks like Bangkok Bank, Kasikorn Bank, or Siam Commercial Bank are equally valid but not required over foreign-owned ones.