ISC revenue for the last year amounted to 140.00 B KRW, the most of which — 119.28 B KRW — came from its highest performing source at the moment, Electrical and Electronic Materials and Components Manufactured Product, the year earlier bringing 138.36 B KRW. The greatest contribution to the revenue figure was made by United States — last year it brought ISC 48.82 B KRW, and the year before that — 68.25 B KRW.