Net Asset Value(s)

BLACKROCK NORTH AMERICAN INCOME TRUST PLC

The unaudited net asset values for BlackRock North American Income Trust plc at
close of business on 30 August 2013 were:

109.31p Capital only
109.76p Including current year income XD

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. Following the issue of 200,000 shares on 30 July 2013, the Company now has
84,488,500 ordinary shares in issue. The unaudited NAV above has been
calculated on this basis.