Where can I apply for a South Korea K-eTA?
Suppose you are interested in traveling to South Korea for short-term tourism or business activities. In that case, you should apply for the K-eTA. It is the most efficient and easiest way to obtain authorization to enter the country.
To obtain a visa to visit for extended periods or other purposes, such as a South Korean work visa or business visa, you need to contact the nearest diplomatic office of the country they are visiting.