Caledonia Investments plc

COMPLETION OF INVESTMENT IN BLUE DIAMOND

Further to its announcement on 17 June 2026, Caledonia Investments plc ("Caledonia") is pleased to confirm the completion of its investment in Blue Diamond Limited ("Blue Diamond"), the UK and Channel Islands' leading garden centre operator.

Caledonia has invested £60 million into Blue Diamond, comprising £40 million to support future growth initiatives and £20 million to facilitate shareholder liquidity. Caledonia holds a fully diluted minority shareholding of 16%.

As previously announced, Caledonia and Blue Diamond have also agreed a framework to make up to £40 million of additional follow-on capital available to Blue Diamond over the next five years, subject to agreed conditions. This additional capital is intended to support Blue Diamond's acquisition programme, investment in the existing garden centre estate and facilitate shareholder liquidity.

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3 July 2026

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Notes for editors:

Caledonia Investments plc

Caledonia is a FTSE 250 self-managed investment trust company with a long track record of delivering consistent returns and progressive annual dividend payments to shareholders.

Our aim is to generate long-term compounding real returns that outperform inflation by 3%-6% over the medium to long term, and the FTSE All-Share index over 10 years.

We are a long-term investor and hold investments in both listed and private markets across three pools: Public Companies, Private Capital and Funds. Each has a strategic allocation of capital, investment strategy and target return.

We buy to hold, investing in high quality companies with strong market positions and fundamentals, alongside investments in private equity funds with track records of success. The result is a well-balanced diversified portfolio of investments with a global reach.

In the Private Capital arena, Caledonia typically seeks to invest £50m to £150m in private companies, either on a majority or minority basis, where Caledonia provides enduring capital and support to investee company management teams over the longer term.  The Caledonia Private Capital portfolio includes AIR-serv Europe (a leading designer and manufacturer of air, vacuum and jet wash machines provided as turn-key solutions to fuel station forecourt operators), Cobehold (the holding company of Cobepa, a European unquoted investment house), Butcombe Group (an inns, restaurant and drinks business with a pub estate stretching from Southwest London to Bristol and the Channel Islands), and Direct Tyre Management (the UK's leading independent provider of outsourced tyre management services to fleet operators).

For additional information on Caledonia Private Capital, please visit www.caledoniaprivatecapital.com and for Caledonia please visit www.caledonia.com.