29 January 2026

3i Infrastructure plc - Appointment of Joint Corporate Broker

3i Infrastructure plc ('3iN' or the 'Company') is pleased to announce that it has appointed Deutsche Bank AG, London Branch (trading for these purposes as Deutsche Numis) as Joint Corporate Broker to join RBC Capital Markets, with effect from 28 January 2026.

For further information, please contact:

Thomas Fodor                                                          Tel: +44 (0)20 7975 3469

Investor enquiries                                                        Email: thomas.fodor@3i.com

Kathryn van der Kroft                                              Tel: +44 (0)20 7975 3021

Media enquiries                                                           Email: kathryn.vanderkroft@3i.com

Deutsche Numis (Joint Corporate Broker)
Hugh Jonathan

George Shiel

Tel: +44 (0)20 7260 1000

RBC Capital Markets (Joint Corporate Broker)
Matthew Coakes

Elizabeth Evans

Kathryn Deegan
Tel: +44 (0)20 7653 4000

-ENDS-

About 3i Infrastructure plc

3i Infrastructure plc is a Jersey-incorporated, closed-ended investment company, an approved UK Investment Trust, listed on the London Stock Exchange and regulated by the Jersey Financial Services Commission. The Company's purpose is to invest responsibly in infrastructure, delivering

long-term sustainable returns to shareholders and having a positive influence on its portfolio companies and their stakeholders.

3i Investments plc, a wholly owned subsidiary of 3i Group plc, is authorised and regulated in the UK by the Financial Conduct Authority and is the investment manager of 3i Infrastructure plc.