Save your entity set-up cost in Yong-in city
When you set-up an entity, you can save entity registration tax in Yong-in city.
In a metropolitan city including Seoul, actually it's 0.4% of the paid-in-capital in Yong-in city but you need to pay 3 times more in Seoul, so if it's 100mil.won paid-in-capital, you can pay 400,000won in Yong-in city but in Seoul, you need to pay 1.6mil.won.
You can establish a company in Yong-in city on a virtual office, and set up a branch in Seoul or other city for your real presence if it's necessary.
Interested, please send me an email to email@example.com, gooday!