OBRASCON HUARTE LAIN, S.A. (“OHLA” or the “Company pursuant to article 226 of the consolidated text of the 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

INSIDE INFORMATION NOTICE

The company informs that has reached an agreement with John Laing Health Montreal Limited for the sale of the 25% equity-shares of the company Societé en comantite Santé Montreal Collectif, which holds the concession of the CENTRO HOSPITALARIO UNIVERSITARIO MONTREAL (CHUM), as well as the subordinated loan that OHLA Group holds against this concessionaire company.

The total price for the transaction has been set at 81,700,000 CAD$ (54,929,102.57€). The price is subject to adjustment based on the amount, whether paid to the OHLA Group, of both dividends and accrued interest on the subordinated loan at the time of the closing of the transaction.

The closing and settlement of the transaction are subject to the fulfillment of conditions that are common in this type of transaction. The closing of the transaction and the reception of the funds is expected to take place during the last quarter of the year.

This divestment of a non-core asset is part of the company’s deleveraging roadmap.

Madrid, 5 June 2024