Total Voting Rights

Caledonia Investments plc

Total voting rights and capital

In accordance with Rule 5.6.1 of the Financial Conduct Authority's Disclosure Guidance and Transparency Rules (the "DTRs"), Caledonia Investments plc ("Caledonia") notifies the market that, as at 31 May 2026, Caledonia's issued share capital included 514,914,166 ordinary shares of 0.5p each with voting rights. No ordinary shares were held in treasury.

The above figure of 514,914,166 ordinary shares may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interests in, or changes to their interests in, Caledonia under the DTRs.

For further information, please contact:

Verity Cox

Deputy Company Secretary

Caledonia Investments plc

Telephone +44 20 7802 8080

1 June 2026

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