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 28 July 2015 were:

121.33p  Capital only
122.85p  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 buyback of 250,000 ordinary shares on 8 May 2015, the
Company has 80,039,044 ordinary shares in issue, excluding 20,322,261 which
are held in treasury.