Economic analysis of the Viaducto Bicentenario concession title prepared by EY

The Company, OBRASCON HUARTE LAIN, S.A. (OHL), in compliance with current
legislation, hereby reports the following Significant Event:

Significant Event

Please find attached English translation of EY’s Executive Summary as a follow up to
the Significant Event published this morning (RNS Number: 7702N).

Download the Economic analysis of the Viaducto Bicentenario