Compliance with Market Abuse Regulation.

GCP Infrastructure Investments Limited

("GCP Infra" or the "Company")

LEI: 213800W64MWATSIV5Z47

Compliance with Market Abuse Regulation

12 May 2025

The Board of the Company announces that it is satisfied that any inside information which the Directors and the Company may have in the period leading up to the announcement of the Half-Year Report and Financial Statements for the period ended 31 March 2025 has been announced to the market. The Company is therefore not prohibited from repurchasing its own shares, during the period prior to the release of its Half-Year Report and Financial Statements. The Board anticipates that the Half-Year Report and Financial Statements will be announced to the market on or around Thursday, 12 June 2025.

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Notes to Editors

GCP Infra is a closed-ended investment company and FTSE-250 constituent whose shares are traded on the main market of the London Stock Exchange. Its objective is to provide shareholders with regular, sustained, long-term distributions and to preserve capital over the long term by generating exposure to UK infrastructure debt and related and/or similar assets.

The Company primarily targets investments in infrastructure projects with long term, public sector-backed, availability-based revenues. Where possible, investments are structured to benefit from partial inflation protection. GCP Infra is advised by Gravis Capital Management Limited.

GCP Infra has been awarded with the London Stock Exchange's Green Economy Mark in recognition of its contribution to positive environmental outcomes.