Interconexion Electrica S.A. E.S.P. - ISA (IESFY: OTCQX International Premier) | Ex-Dividend Wed, Jul 25, 2018 08:00 - Interconexion Electrica S.A. E.S.P. - ISA ( IESFY : OTCQX International Premier) - Ex-Dividend - As of Thu, Jul 26, 2018, Interconexion Electrica S.A. E.S.P. - ISA traded ex-dividend. Interconexion Electrica S.A. E.S.P. - ISA will disburse a Cash Dividend dividend of $2.35742 to shareholders of IESFY. You may find a complete list of dividends at otcmarkets.com .