BOC only has one Debit card from Mastercard, am I right?
Bank of China Great Wall International Debit Card (Singapore)
http://www.bankofchina.com/sg/bcservice/bc1/201404/t20140401_3122710.html
Bank of China Great Wall International Debit Card (Singapore)
http://www.bankofchina.com/sg/bcservice/bc1/201404/t20140401_3122710.html