HENDERSON GLOBAL INVESTORS

HENDERSON HIGH INCOME TRUST PLC

 24 April 2012

HENDERSON HIGH INCOME TRUST PLC

ALLOTMENT OF SHARES

 The Company announces the allotment on 24 April 2012 of 300,000 ordinary shares of 5p each fully paid for cash at a price of 129p per share ("New Shares").

The New Shares rank pari passu with the existing ordinary shares. Application is now being made for the New Shares to be admitted to the premium segment of the Official List of the UK Listing Authority and to trading on the London Stock Exchange's main market for listed securities, and dealings are expected to commence on or around 30 April 2012.

The number of ordinary shares in issue is now 90,480,744.  Each share has one vote; therefore the total number of voting rights in the Company is 90,480,744. 

The above figure 90,480,744 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, Henderson High Income Trust plc under the FSA's Disclosure and Transparency Rules.

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For further information please contact:

Alex Crooke

Portfolio Manager, Henderson High Income Trust plc

Telephone: 020 7818 4447

James de Sausmarez

Director and Head of Investment Trusts,

Henderson Global Investors                                                  

Telephone: 020 7818 3349