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 7 August 2015 were:

121.74p  Capital only
123.41p  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.