JLS

JLS provides private tutoring and supplementary education services to school-age children and teenagers in South Korea.

Its customers are primarily elementary and middle-school students, along with their families, who pay for out-of-school academic instruction. The company is listed on KOSDAQ, South Korea's tech and small-cap exchange. Its filing notes that English is the single highest-spending subject among elementary students, while mathematics commands the largest share of spending at the secondary level.