Other relevant Information. Practice statement letter in connection with the Scheme

March 16, 2021

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

OTHER RELEVANT INFORMATION NOTICE

In connection with the communication of inside information dated 25 February 2021 (with number 768) by virtue of which the Company informed, among others, of the launch of the practice statement letter in connection with the Scheme (the “Practice Statement Letter”), the Company informs that it has been confirmed that the convening hearing in relation to the Scheme has now been fixed to take place on Thursday 18 March 2021 at 10:30 a.m. (London time) before Mr Justice Adam Johnson in the Rolls Building, Fetter Lane, London, EC4A 1NL. Attendance will be available via video conference in light of the COVID-19 pandemic.

The Convening Hearing is for an order granting the Company certain directions in relation to the Scheme including permission to convene a meeting of the Scheme Creditors for the purpose of considering and, if thought fit, approving to the Scheme.

Any interested party has the right to attend via Skype either themselves or through counsel and make representations at the Convening Hearing. In order to access the Convening Hearing, any interested party should provide their details via email to ohl@lucid-is.com for the attention of Paul Kamminga and Victor Parzyjagla by 9:00 a.m. (London time) on 17 March 2021, following which they will be provided a Skype link directly by the Court.

Capitalised terms used but not defined in this notice shall have the meaning given to them in the Practice Statement Letter.

Madrid 16 March 2021