Net Asset Value(s)

Henderson High Income Trust PLC
07 July 2006

HENDERSON GLOBAL INVESTORS

7 July 2006


HENDERSON HIGH INCOME TRUST PLC

As at close of business on 6 July 2006, the unaudited net asset value per share
calculated in accordance with the AITC formula (excluding current financial year
revenue items) was 156.1p.

                                    - ENDS -

For further information, please call:

John Hilton, Investment Trust Accounting Department

BNP Paribas Fund Services UK Limited

Tel: [phone]



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