SUMISEKI HOLDINGS INC revenue for the last year amounted to 39.89 B JPY, the most of which — 39.21 B JPY — came from its highest performing source at the moment, Coal, the year earlier bringing 11.72 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought SUMISEKI HOLDINGS INC 39.89 B JPY, and the year before that — 12.40 B JPY.