China's UnionPay and AliPay are to various extents are integrated with the systems in Vietnam, Thailand, Malaysia, Singapore, and Indonesia [1]. Each country ha

China's UnionPay and AliPay are to various extents are integrated with the systems in Vietnam, Thailand, Malaysia, Singapore, and Indonesia [1]. Each country has its own system, but integrates with others. [1] https://www.msn.com/en-us/money/markets/china-indonesia-have-launched-a-qr-payment-system-that-skips-the-us-dollar/ar-AA22np3W https://www.msn.com/en-us/money/markets/china-indonesia-have...