SOUTHERN COPPER CO revenue for the last year amounted to 8.33 B CHF, the most of which — 4.68 B CHF — came from its highest performing source at the moment, Mexican Open-pit, the year earlier bringing 5.19 B CHF. The greatest contribution to the revenue figure was made by Mexico — last year it brought SOUTHERN COPPER CO 2.25 B CHF, and the year before that — 2.12 B CHF.