IS DONGSEO revenue for the last year amounted to 1.55 T KRW, the most of which — 825.54 B KRW — came from its highest performing source at the moment, Construction, the year earlier bringing 1.28 T KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought IS DONGSEO 1.41 T KRW, and the year before that — 2.01 T KRW.