You will probably have to locate an exporter here in the US, there are a few that do so (although I'm not sure if they regularly export to South Korea). I know Michael Cole from Ballroom Pythons South does exporting. Here's an ad he has on fauna about it: http://www.faunaclassifieds.com/foru...d.php?t=623266 I've also talked to Alex at Boa Republic who does it every once in a while but as far as I know, to just the UK. I'm sure there are others, check with some of the wholesalers, they would probably be able to source BRB for you as well. From what I understand you'd be looking at well over $1000 USD so I don't know if it would be worth it for a pair of snakes. I don't think you'll find many BRB breeders that export directly (BRB breeders in the states I recommend are: David Colling at Rainbows R Us and Cliff Earle at Living Gem Reptiles).
I wish you lots of luck!