RNS Number : 4313A

Obrascon Huarte Lain, S.A.

11 September 2018

OBRASCÓN HUARTE LAIN, S.A. ("OHL" or the "Company"), pursuant to article 228 of the consolidated text of the Spanish Securities Market Act approved by Royal Legislative Decree 4/2015, of 23 October, hereby notifies the Spanish National Securities Market Commission (Comisión Nacional del Mercado de Valores) ("CNMV") the following

SIGNIFICANT EVENT

OHL will release 1H2018 Results on Wednesday September 26 after market closing.

The management team of OHL will hold a Conference call (conducted in English) for analysts & investors on the same day at 18:30 CET/ 17:30 GMT.

The details of the conference will be available at www.ohl.es

The recording of the call will be available on the web during a week.

Madrid, September 11^th 2018

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