Listing Rules 21.20

Henderson High Income Trust PLC
02 April 2004


HENDERSON HIGH INCOME TRUST PLC
HENDERSON GLOBAL INVESTORS
2 APRIL 2004



                        HENDERSON HIGH INCOME TRUST PLC

                                Listing Rule 21


In accordance with paragraph 21.20 (l) (ii) of the Listing Rules, Henderson High
Income Trust plc announces its ten largest investments, including all
investments with a value greater than 5% of its gross assets, as at 31 March
2004:

Company

HBOS Ords
Gallaher
BP
Aviva
Royal Bank of Scotland Group
HSBC
Shell Transport & Trading
HBOS 9.75% Non Cum Prf
Lloyds TSB
BT

This excludes group investments.



                                    - ENDS -


For further information, please call:

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

Stephen Westwood
Head of Investment Trusts
Henderson Global Investors
Telephone: [phone]

Stephen Phillips
Associate Director
Henderson Global Investors
Telephone: [phone]


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