RIKEN CORUNDUM CO revenue for the last year amounted to 4.18 B JPY, the most of which — 3.47 B JPY — came from its highest performing source at the moment, Abrasive Cloth, Etc., the year earlier bringing 3.45 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought RIKEN CORUNDUM CO 3.84 B JPY, and the year before that — 3.64 B JPY.