ALFA S.A.B. DE C.V. A revenue for the last year amounted to 8.63 B EUR, the most of which — 8.05 B EUR — came from its highest performing source at the moment, Sigma, the year earlier bringing 7.15 B EUR. The greatest contribution to the revenue figure was made by Mexico — last year it brought ALFA S.A.B. DE C.V. A 6.85 B EUR, and the year before that — 4.71 B EUR.