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 9 July 2013 were:

116.88p Capital only
117.76p 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 350,000 shares on 8 July 2013, the Company now has
81,038,500 ordinary shares in issue. The unaudited NAV above has been
calculated on this basis.