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 17 October 2013 were:

109.21p Capital only
109.26p Including current year income XD

The unaudited net asset values for the C shares of BlackRock North American
Income Trust plc at close of business on 16 October 2013 were:

98.85p Capital only
98.85p 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. The number of ordinary shares in issue is 84,488,500 and the number of C
shares in issue is 15,500,000.