It depends on specific countries and businesses. At present, UnionPay cards (including savings cards and credit cards) can be used by merchants and ATMs in overseas 150 countries and regions. Go to UnionPay official website to see if there are any merchants supporting UnionPay cards in your country. If there are, please feel free to take them out. However, according to personal experience, it is best to bring a dual-currency or multi-currency credit card in addition to UnionPay cards when going abroad, because there are still merchants who do not support UnionPay cards and must use credit cards with the logo of international organizations. CCB has Dragon Card Global Payment Card. I recommend you to apply for a VISA or MASTERCARD card for this card. It is particularly convenient to use it abroad, all of which are recorded in RMB, and the exchange fee is exempted.