OBRASCÓN HUARTE LAIN, S.A. (“OHLA” or the “Company”), pursuant to article 227 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

 OTHER RELEVANT INFORMATION

In the communication of other relevant information published by the Company on 31 October 2024 (with official registry number 31,153), the Company announced that its subsidiary, OHL Operaciones, S.A.U. (the “Issuer”) obtained the approval from holders of its Split Coupon Senior Secured Notes due 2026 (ISIN: XS2356570239) / (ISIN: XS2356571120) (the “Notes”) to the proposal set out in the consent solicitation memorandum published by the Issuer on 25 October 2024 (the “Proposal”).

In connection with the Proposal, the Company hereby announces that the calculation agent has received accessions to the Lock-Up Agreement from Noteholders holding at least 50 per cent. by value of the aggregate principal amount of outstanding Notes prior to 15 November 2024. As a consequence, pursuant to the Proposal the Issuer will now pay the coupon of the Notes due on 15 September 2024 on or prior to the earliest of (a) the Recapitalisation Effective Date or (b) 31 March 2025, unless the Lock-Up Agreement is terminated at any time.

Madrid 13 November 2024.