Proposed Share Issue

Henderson High Income Trust PLC
22 March 2007

HENDERSON HIGH INCOME TRUST PLC

HENDERSON GLOBAL INVESTORS

22 March 2007


                HENDERSON HIGH INCOME TRUST PLC (the "Company")


                     Proposed Issue of New Ordinary Shares


The Board is today recommending proposals, announced in outline on 21 December
2006, for an issue of New Ordinary Shares in connection with the reconstruction
of Martin Currie Income & Growth Trust plc and the convening of an Extraordinary
General Meeting of the Company.



A circular setting out the details of the Proposals and the Board's
recommendation that Shareholders vote in favour of the resolution required to
implement them, together with a prospectus relating to the issue, will be
despatched to Shareholders.



Expected timetable

Latest time and date for receipt of Forms of Proxy      11.00 a.m. 17 April 2007

Extraordinary General Meeting                           11.00 a.m. 19 April 2007

Dealings in New Ordinary Shares issued under the        8.00 a.m. 1 May 2007
Proposals

New Ordinary Shares issued under the Proposals          by 4 May 2007
in certificated form.



Terms used in this announcement shall, unless the context requires otherwise,
bear the same meaning given to them in the Company's circular to Shareholders
dated 22 March 2007.



Copies of the circular and the prospectus have been submitted to the UK Listing
Authority and will be available shortly for inspection at the UK Listing
Authority's Document Viewing Facility which is situated at:



Financial Services Authority
25 The North Colonnade
Canary Wharf
London E14 5HS


Enquiries:


Henderson Global Investors                                  PricewaterhouseCoopers LLP
James de Sausmarez                020 7818 3349             Melville Trimble        020 7213 8898
Peter Ames                        020 7818 6756




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