Gamcheon port in Busan, together with Busan anchorage is usually crawling with reefers, ranging from 50+ years old ones sailing under (usually) Russian flag, to freshly built "classic" reefers for South Korean owners. This, of course, is in addition to all the refrigerated container traffic, as Busan is one of the world's major container ports.
Bangkok does have more reefers posted here, but I think that's just because I've been lazy lately...