International brewers are trickling into Myanmar, betting that higher incomes and economic reforms will whip up a thirst for foreign beer in a market that has long been dominated by state-owned firms. Heineken NV, the world's third-largest brewer, on Sunday opened a $60-million brewery joint-venture just outside Yangon, returning to one of Asia's most promising beer markets after exiting in 1997 amid international condemnation of the human rights abuses of the military government at that time.