@Massimo ********
depends on the province, but many people are using a fixed account, or foreign currency account, not a saving account, too.
Your account has to be in Thai Bank unless your embassy issues an affidavit/letter to prove your fund in your home country. (if you can get the affidavit/letter from your embassy, you can use your funds in your home country)
Gonna be off-topic: Just wondering if it's your personal account (not the business entity's account with you are the main person) as you said it's a current account.