Yes. You can swipe your card or withdraw cash at merchants and ATMs in Thailand with the UnionPay logo.

There is no handling fee when swiping a credit card via UnionPay lines, and the transaction currency will be automatically converted into RMB and credited to the account; swiping a credit card to collect the existing handling fee, and withdrawing local currency at an ATM with the "UnionPay" logo, press "12 yuan" 1 of the cash withdrawal amount (currently calculated as 0.5)" to pay the cash withdrawal handling fee, of which the minimum is ￥2 yuan and the maximum is ￥50 yuan based on the cash withdrawal amount 1 (currently calculated as 0.5).