Net Asset Value(s)

NET ASSET VALUE

BLACKROCK NORTH AMERICAN INCOME TRUST PLC

The unaudited net asset values for BlackRock North American Income Trust plc at
close of business on 25 October 2012 were:

98.17p Capital only
98.32p Including current year income

Notes:
1. Investments have been valued on a bid price basis.
2. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.
3. The unaudited NAV above has been calculated based on 65,000,000 ordinary
shares in issue.