EIKEN CHEMICAL CO revenue for the last year amounted to 40.05 B JPY, the most of which — 21.71 B JPY — came from its highest performing source at the moment, Immuno-serological Test Reagents, the year earlier bringing 20.72 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought EIKEN CHEMICAL CO 29.94 B JPY, and the year before that — 34.47 B JPY.