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 8 August 2013 were:

113.47p Capital only
114.58p 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. 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.