ISHII IRON WORKS CO revenue for the last year amounted to 11.12 B JPY, the most of which — 9.32 B JPY — came from its highest performing source at the moment, Steel Structure, the year earlier bringing 9.25 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought ISHII IRON WORKS CO 7.88 B JPY, and the year before that — 9.03 B JPY.