KEIWA INCORPORATED revenue for the last year amounted to 17.57 B JPY, the most of which — 13.44 B JPY — came from its highest performing source at the moment, Optical Sheet, the year earlier bringing 17.46 B JPY. The greatest contribution to the revenue figure was made by China — last year it brought KEIWA INCORPORATED 7.17 B JPY, and the year before that — 8.99 B JPY.