GUARANTY TRUST HOLDING COMPANY PLC revenue for the last year amounted to 1.11 T NGN, the most of which — 720.56 B NGN — came from its highest performing source at the moment, Corporate Banking, the year earlier bringing 296.25 B NGN. The greatest contribution to the revenue figure was made by Nigeria — last year it brought GUARANTY TRUST HOLDING COMPANY PLC 936.13 B NGN, and the year before that — 401.95 B NGN.