Generally speaking, there is no need to write a letter of commitment, which will make the other party more at ease.

Foreign exchange, called Foreigncurrency in English, is a creditor's right held by monetary authorities (central bank, monetary management institution, foreign exchange stabilization fund and Ministry of Finance) in the form of bank deposits, treasury bonds and long-term and short-term government securities. Can be used when the balance of payments is in deficit.

Including foreign currency, foreign currency deposits, foreign currency securities (treasury bonds, treasury bonds, corporate bonds, stocks, etc.). ) and foreign currency payment vouchers (bills, bank deposit vouchers, postal savings vouchers, etc.). ).