Harbour Energy PLC has received a notification of major holdings from Control Empresarial de Capitales, S.A. de C.V. The notification states that Control Empresarial acquired voting rights in Harbour Energy PLC on October 20, 2023. The total number of voting rights held by Control Empresarial is 30,818,925, representing 4.000600% of the voting rights in the company. This is an increase from their previous position of 3.000200% of voting rights.

Control Empresarial is a sociedad anónima de capital variable organized under the laws of Mexico. All outstanding voting securities of Control Empresarial are owned by Trust No. F/0125, which is a trust organized under the laws of Mexico. The trustee of the Control Trust is Banco Inbursa S.A., Institucion de Banca Multiple, Grupo Financiero Inbursa, Division Fiduciaria. The Control Trust has a technical committee that makes investment decisions, and it is composed of representatives of Carlos Slim Domit, Marco Antonio Slim Domit, Patrick Slim Domit, Maria Soumaya Slim Domit, Vanessa Paola Slim Domit, and Johanna Monique Slim Domit.

Based on these arrangements, it is stated that the Control Trust is not considered to be controlled by any person for the purposes of this notification. The notification was completed on November 21, 2023.