September 9, 2004
China Daily: China UnionPay cardholders can now use their cards in Macao after China UnionPay Co. Ltd. opened point-of-sale and ATM access in the special administrative region on Sept. 8. UnionPay debit card holders can use cards at more than 200 shopping malls and withdraw up to 4,800 Macao dollars (U.S. $610) a day from 125 ATMs authorized by UnionPay.
And read related story: ATM cards will be interoperable in Hong Kong, China