The New Iberdrola in Mexico

IBERDROLA Executive Summary • • Agreement to sell 8,539 MW in Mexico for ~6 Bn USD Transaction Overview Iberdrola Mexico has signed an agreement with Mexico Infrastructure Partners (MIP), being the transaction financed by Mexican public institutions (FONADIN and Development Banks) The portfolio includes 12 CCGTS with a total 8,436 MW installed capacity and 1 windfarm of 103 MW 7,400 MW (87% of the total) contracted with CFE (PIE), under Government concession renewal Iberdrola keeps presence in Mexico with 1,059 MW in renewables, 1,166 MW CCGTs, 202 MW Cogen and a 6 GW renewable pipeline to secure energy to our private customers Transaction calendar: upon execution of final agreements and obtaining regulatory approvals, the transaction is expected to be closed before year end Strategic fit ☑ Growth based on Networks and Renewables • Recycling capital towards Renewables, maintaining service to private customers Maintaining commitment to Mexico, growing in the private sector by providing energy and renewable solutions ✓ Full commitment to financial strength • . Improvement of financial ratios Asset rotation & Partnerships targets almost complete ESG as the foundation of our model Acceleration of 2040 Net Zero ambitions Strengthening relationship with the Mexican authorities Transaction meets both parties' strategic objectives 2

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