Issue of Equity

To: RNS

Date: 17 November 2025

From: CT UK High Income Trust PLC

LEI: 213800B7D5D7RVZZPV45

SALE OF ORDINARY SHARES FROM TREASURY

The Board of CT UK High Income Trust PLC announces that on 17 November 2025 the Company sold from treasury 100,000 Ordinary shares at a price of 109.82p per Ordinary share.

Following this transaction the Company's issued share capital consists of 102,067,144 Ordinary shares and 32,076,703 B shares, of which 16,394,491 Ordinary shares and 1,742,953 B shares are held in treasury. Therefore the total number of shares with voting rights in CT UK High Income Trust PLC is 85,672,653 Ordinary shares and 30,333,750 B shares.

The above figures (85,672,653 Ordinary shares and 30,333,750 B shares) may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, CT UK High Income Trust PLC under the FCA's Disclosure Guidance and Transparency Rules.

For further information please contact:

David Moss,

Columbia Threadneedle Investment Business Limited, Manager 0131 573 8300