Listing Rule 15.4.11(2)

Henderson High Income Trust PLC
03 January 2007



HENDERSON HIGH INCOME TRUST PLC

HENDERSON GLOBAL INVESTORS

3 JANUARY 2007





                        HENDERSON HIGH INCOME TRUST PLC

                            Listing Rule 15.4.11 (2)


In accordance with paragraph 15.4.11 (2) of the Listing Rules, Henderson High
Income Trust plc announces its ten largest investments as at 31 December 2006.
There are no holdings with a value greater than 5% of gross assets.


Company
BT
HSBC
BP
Galliford Try
Scottish & Southern Energy
Royal Bank of Scotland
Old Mutual
Prodesse Investment Trust
Land Securities
Imperial Tobacco



This excludes group investments.


                                    - ENDS -


For further information, please call:



Alex Crooke
Henderson High Income Trust plc
Telephone: [phone]



James de Sausmarez
Head of Investment Trusts
Henderson Global Investors
Telephone: [phone]



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