Other Relevant Information. Results Presentation 1S2021

OBRASCON 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

DISCLOSURE OF OTHER RELEVANT INFORMATION

On Thursday 29 July 2021 after market closing, OHLA will release 1H 2021 results.

The management team of OHLA will hold a Conference call (conducted in English) for analysts & investors on Friday 30 July 2021 at 10:00 CET. The details of the conference will be available at: www.ohla-group.com

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

Madrid, 23 July 2021.