"Conbini" (convenience store) operators are jostling for eminence in a famously cut-throat industry, and one product has come up trumps for the market's top players — coffee.
Millions and millions of cups of it.
Inspired by a popular ¥100 blend launched by McDonald's Holdings Co. (Japan) in 2008, Seven-Eleven Japan Co. touched off a boom in conbini coffee last year, lifting Japan's long-stagnant coffee market and rankling rival businesses.
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