Investment Restriction Clarification

BLACKROCK NORTH AMERICAN INCOME TRUST PLC

Investment Restriction Clarification

As set out in the prospectus published by BlackRock North American Income Trust
plc (the "Company") on 14 September 2012, the Company's investment restrictions
therein include the following restriction with regard to investments in other
listed closed-ended investment companies.

"The Company will at all times invest and manage its assets with the objective
of spreading risk and in accordance with its published investment policy as set
out in Part 1 of this document. In order to comply with the current Listing
Rules:

 i. the Company will not conduct any trading activity which is significant in
    the context of its group as a whole; and
   
ii. the Company will not invest more than 10 per cent. of its Gross Assets in
    other listed closed-ended investment funds, whether managed by the Manager
    or not, except that this restriction shall not apply to investments in
    listed closed-ended investment funds which themselves have stated
    investment policies to invest no more than 15 per cent. of their gross
    assets in other listed closed-ended investment funds."
   
Further to shareholder feedback the Board wish to clarify that in addition to
the above restrictions, the Company will not invest more than 15 per cent. of
its Gross Assets in other listed closed-ended investment funds, notwithstanding
whether or not such funds have stated policies to invest no more than 15 per
cent. of this gross assets in other closed-ended investment funds.

22 November 2012

All enquires:
Barbara Powley
Company Secretary
BlackRock Investment Management (UK) Limited
Tel: [phone]

Sapna Shah
Cenkos Securities
Tel: [phone]