No. You cannot engage in profitable activities in Korea with a K-ETA. You must obtain a separate visa that allows you to work and participate in employment activities in Korea.

Yes. In principle, dependents of USFK members and members of the civilian component are required to obtain a K-ETA. However, those who request K-ETA exemption through the competent authorities of the United States to the Ministry of Justice, and receive approval, they may be exempt from the K-ETA requirement.

No. According to the ‘Agreement under Article IV of the Mutual Defense Treaty between the United States of America and the Republic of Korea, regarding Facilities and Areas and the Status of United States Armed Forces in the Republic of Korea (SOFA)’, members of the United States Armed Forces (USFK service members) do not need to get a K-ETA. Note that you will need to present your DOD ID card instead of your passport upon check-in for issuance of your boarding pass.

No. diplomatic and official passport holders will be able to receive their boarding pass without a K-ETA.

No. Valid ABTC holders will be able to receive their boarding pass without a K-ETA.
But, USA and Canada are not included

No. Transfer/transit passengers who are not entering the Republic of Korea do not need to get a K-ETA.
However, if you need to go through the immigration control to recheck your baggage or for any other reasons, you are required to get a K-ETA.

Yes, Even if you want to visit Jeju Island, you must obtain K-ETA approval before boarding the plane or ship.

When a flight or ship crew member is entering the Republic of Korea as a crew member, that person does not need to get a K-ETA.

No. Residence Card holders (registered foreign residents) do not need to get a K-ETA.

No. If you have a valid Korean visa, you do not need to get a K-ETA.