OBRASCÓN HUARTE LAIN, S.A. (the “Company”), pursuant to article 227 of Law 6/2023, of 17 March, on the Securities Markets and of the Investment Services, hereby notifies the Spanish National Securities Market Commission (Comisión Nacional del Mercado de Valores) the following

OTHER RELEVANT INFORMATION

The Company refers to the communications of inside information and other relevant information dated 4 November 2024, 2 December 2024 and 6 January 2025 (with registration numbers 2,448, 31,590 and 32,001, respectively) in relation to the recapitalisation of the Company and its subsidiaries (the “Group”), which includes amendments to the terms and conditions of OHL Operaciones, S.A.U.’s EUR 487,266,804 Split Coupon Senior Secured Notes due 2026 (of which EUR 440,405,980.55 in principal amount remained outstanding) (ISIN: XS2356570239 / XS2356571120) (the “Notes”), a partial redemption of the Notes and the renegotiation of the guarantee/bonding lines and certain financing agreements of the Group (the “Recapitalisation”).

Having completed the capital increase with preferential subscription rights for an aggregate effective amount of EUR 80,000,000, the Company hereby informs that it continues to progress with the implementation of the Recapitalisation and signed yesterday with the relevant groups of creditors the recapitalisation documents, which set the Recapitalisation Effective Date as 13 February 2025.

On such date, all transactions necessary to implement the Recapitalisation are expected to be completed and, as a result, the Recapitalisation will become fully effective. The Company will inform of the occurrence of the Recapitalisation Effective Date by publishing the corresponding announcement.

Madrid, 12 February 2025