Most Western passport holders (US, UK, EU, Canada, Australia and many others) may enter South Korea visa-free for short business meetings and trade fairs for up to 90 days, subject to K-ETA electronic authorisation when it is in effect. Other nationalities must obtain a short-term visit (C-3) visa from a Korean embassy or consulate before travel. Apply at least 3-4 weeks ahead and carry an invitation letter from the organiser, hotel confirmation and proof of onward travel. Check the current rules for your passport on the K-ETA portal or with the Korean mission in your country, as visa-waiver and K-ETA arrangements change periodically.
Estimated cost: Varies by visa type and nationality (check official site).
Processing: Varies by nationality; apply several weeks before travel.
Fee is KRW 10,000 (approx. USD 7-8). Valid for multiple entries over 2 years; apply online at the official K-ETA portal only. K-ETA exemptions have been applied to some nationalities on a temporary basis - verify status for your passport before travel. Consular fees vary by nationality and entry type (roughly USD 40 single-entry to USD 90 multiple-entry). An invitation letter from Exporum / Educat
Official