SUMISEKI HOLDINGS INC revenue for the last year amounted to 22.60 B JPY, the most of which — 21.80 B JPY — came from its highest performing source at the moment, Coal, the year earlier bringing 39.21 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought SUMISEKI HOLDINGS INC 22.60 B JPY, and the year before that — 39.89 B JPY.