If the card is exclusive to Korea, it will not work; if it is an international card, all major banks can accept it.
Withdrawal operation conditions: The bank card needs to be marked with VISA, master, etc., and you can withdraw money at ATMs with VISA, master, etc. marks in China, but handling fees will be incurred.
Usually international credit cards use US dollars as the settlement currency. International credit cards can be used for overdraft consumption (consumption first and repay later). Currently, the most common international credit card brands are Visa, Master Card, etc.
Extended information:
International Card No matter which country the international card issuer is, the settlement currency of the credit card must be a freely convertible currency. An international credit card must have two countries in which the card is issued, and the credit card's settlement currency must be a freely convertible currency. An international credit card must meet two conditions: the brand of the international credit card organization and the settlement currency being a freely convertible currency.
As we all know, the three major international organizations are VISA, MASTER and JCB. Among them, VISA has the highest market share, followed by MASTER and JCB. However, JCB is very easy to use in Japan, but not necessarily in other places. Although JCB is also an international card, some online purchases do not accept JCB.