Can I use UnionPay credit card to travel to Thailand?

Yes, UnionPay is very common in Thailand.

Under normal circumstances, most people will choose to trade through UnionPay network and directly convert Thai baht into RMB. The exchange rate is the exchange rate of UnionPay on the day of swiping the card.

If the credit card is traded through international organizations (VISA, MasterCard, JCB), take my CCB credit card as an example. If the card is above the standard platinum level or a single identification card, the Thai baht of the transaction will be automatically converted into RMB according to the foreign exchange purchase exchange rate of CCB on the entry day. If it is an ordinary card or a gold card, first convert it into a credit card USD/EUR account according to the exchange rate of international organizations, and charge the landlord 1.5. When paying back the money, the landlord can choose to put RMB into the credit card on the same day and call home to purchase foreign exchange for repayment.