BLACKROCK NORTH AMERICAN INCOME TRUST PLC: 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 11 December 2012 were:

98.74p Capital only 99.44p 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 unaudited NAV above has been calculated based on 67,250,000 ordinary shares in issue.

-0- Dec/12/2012 16:55 GMT