  This beer mat or coaster is part of the Budweiser Bud Nation Pacific Islands collection that was released in 2008. The 9 beer mats and cans from this set include Guam Chuuk Palau Kosrae Saipan 
YapTinian & RotaMajuroand Pohnpei. The cans were released in each of the Pacific countries. However the beer mats or coasters were only released in the country featured on the mat. As for the Bud cans.I do know that they were released in two sets. The first set arrived in the Marshall Islands between Thanksgiving and Christmas 2008. The five cans in that set were SaipanYapTinian & RotaMajuroand Pohnpei. The second set of cans arrived after Christmas and early in 2009. Those four cans were GuamChuukPalauand Korsae. The second set is more common than the first.but both sets are very difficult to come by. Info provided Janaury 2012