A behemoth is brewingTwo of Japan's biggest beverage companies plan to create a global giant Reuters BEER is serious business in Japan. When employees of Mitsubishi Corporation, a huge trading house, go on a beer binge they are (informally) required to quaff Kirin—a company under Mitsubishi's wing. Similarly, parties at Sumitomo Mitsui Financial Group serve only Asahi, a big client of the bank. Co