@rgbrenner: Thank you but I am a student and study visa is not qualified for setting up a company. Otherwise, you have to invest ~100,000 USD to get a business visa then you can setup your company OR you have to spend time working in SK, gain some point from other activities (Korean language, community service..) to be qualified for a F2 visa (which is eligible for setting up a company). In my opinion, a very complicated system for foreigners who want to do business in SK.
Does that mean I don't have to flight to Hong Kong and file application there? All I need to do is submit some documents online? It would be nice if you can give some more information (ex: website, etc..)