MADRID (Reuters) - Spanish infrastructure group Abertis (>> Abertis Infraestructuras S.A.) said on Monday Caixabank chairman Isidro Faine had resigned from its board.

The company said in a statement to the Spanish stock exchange regulator Faine had given up his board seat, representing shareholder Caixabank due to a conflict of interest under a 2014 law regulating banks.

The law does not allow a bank director to hold more than four non-executive roles in other companies.

As well as Abertis, Faine is on the boards of Telefonica (>> Telefonica SA), oil major Repsol (>> Repsol SA) and Suez Environnement (>> SUEZ ENVIRONNEMENT) and last week joined Gas Natural (>> Gas Natural SDG SA).

(Reporting By Carlos Ruano; writing by Sarah Morris, editing by David Evans)