Are there any South Korean craft breweries who bottle their beers?
Bonus question: Where (in Seoul) can my friend obtain some?
Ratebeer has list of breweries in South Korea. I see there are some in Seoul and the images show bottles, so I assume that they bottle.
Go to RateBeer and in the Brewer Search area select the country. (I would have liked to give a result link, but ratebeer hides them).