IS DONGSEO revenue for the last year amounted to 2.03 T KRW, the most of which — 1.28 T KRW — came from its highest performing source at the moment, Construction, the year earlier bringing 1.65 T KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought IS DONGSEO 2.01 T KRW, and the year before that — 2.26 T KRW.