Korean is being learned abroad faster than it can be taught
King Sejong Institutes now operate at more than 240 locations worldwide and turn away applicants, as demand generated by Korean music and drama outruns the supply of qualified teachers.
The King Sejong Institute network began in 2007 with thirteen locations. By the mid-2020s it had passed 240 institutes across more than eighty countries, operated under the Ministry of Culture, Sports and Tourism through a dedicated foundation and delivered in partnership with local universities and cultural organizations. That is a fast build for a language-teaching network, and it was demand-led rather than plan-led: the foundation opens where applications and local partners already exist, and in a large number of those locations enrolment closes within days of opening and classes run with waiting lists.
The demand has a clear origin and an unclear ceiling. Korean is now consistently among the most-studied languages on the large consumer learning platforms — Duolingo’s annual reports have placed it around sixth or seventh worldwide, above languages with vastly more native speakers and far larger diaspora populations. That ranking is not explained by migration, trade or colonial history, the three things that usually determine who learns what. It is explained by music, television and comics, and by the fact that Korean cultural products are consumed in a form where the original language remains audible. A subtitled drama teaches a viewer that there is something specific in the untranslated line, and a certain fraction of viewers go looking for it.
Formal certification has followed. The Test of Proficiency in Korean is administered in dozens of countries, and applicant volumes moved from tens of thousands in the 2000s into the hundreds of thousands by the early 2020s, driven partly by learners with no professional need for the certificate. Korean has also entered school systems: as a foreign-language option in secondary curricula across parts of Southeast Asia and Central Asia, as a university entrance subject in several countries, and as an examinable language in a handful of European systems. Vietnam’s designation of Korean as a first foreign language available from primary school, made in 2021, was the most consequential single decision, because it converts optional interest into timetabled hours.
The constraint is teachers. Korea certifies Korean-language instructors through a domestic qualification framework, and the supply is calibrated to a domestic market — teaching Korean to migrants and international students inside Korea — that pays modestly and offers largely fixed-term work. Exporting that workforce to eighty countries requires either relocation on local salaries or the training of local nationals, and the second route needs materials, examiner capacity and career paths that are still being assembled. Institutes in high-demand locations have reported running on a small number of qualified staff supplemented by volunteers, and the foundation’s online platform exists in part as an overflow valve for demand it cannot staff.
There is also a quality question that the enrolment figures obscure. A large share of learners arrive with strong listening comprehension acquired passively from media and negligible grammar, which is an unusual profile that most Korean-as-a-foreign-language curricula were not built for. Beginner classes designed for the migrant learner in Korea are a poor fit for a twenty-two-year-old in São Paulo who can follow a variety show and cannot construct a polite request. Attrition after the introductory level is the predictable result, and it is where the network’s own data would be most valuable and is least published.
As soft-power infrastructure the network is cheap and unusually well targeted. Cultural exports create the interest; the institutes convert some of it into a durable relationship with the country, and the people who complete the courses become the translators, the tour operators, the local staff of Korean firms and the next generation’s teachers. That conversion is the part that requires money rather than momentum. The interest is arriving on its own. The teaching capacity to receive it is what a budget can actually buy, and the gap between the two is the network’s central problem, not its popularity.