http://mobile.bloomberg.com/news/2012-12-11/china-s-unionpay-vi
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China’s UnionPay Vies With Visa for Global Card Dominance
Its share of combined credit- and debit-card purchase volume for the first
half of 2012 rose to 23.8 percent from 20.9 percent a year earlier,
propelling UnionPay to No. 2 globally behind Visa,