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 4 December 2012 were:

97.11p Capital only 97.73p 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 65,500,000 ordinary shares in issue.

-0- Dec/05/2012 16:02 GMT