They do, along with cars. I know their car division is owned by Hyundai not sure about the rest of their goods. Along with that Hyundai's car division only makes up a small amount of what they do. I believe most their income is from steel and other goods. Bottom line I think they make close to everything in S. Korea. And there's are little S. Korea economics lesson for the day.
Side note: Ford use to make ammo...and it was really good stuff, but they didn't want that to be part of their image so they got out of the business.