Siam Commercial Bank is the oldest in Thailand. Currently, SCB serves the largest number of ATMs and branches in the kingdom. Over 1,100 branches are open throughout the country. You can select more than 25 currencies to deposit or withdraw cash. Opening an account is available to any non-resident, but a work permit is required. Individuals and foreigners can deposit 12 major currencies, including yen, euro, US dollars, Australia, Canada, Hong Kong, New Zealand and Singapore.