Net Asset Value(s)

NET ASSET VALUE

BLACKROCK NORTH AMERICAN INCOME TRUST PLC
549300WWOCXSC241W468

The unaudited net asset values for BlackRock North American Income Trust plc at
close of business on 13 June 2018 were:

171.67p Capital only
172.37p Including current year income XD

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 75,000 ordinary shares on 14 June 2017, the Company
has 68,874,044 ordinary shares in issue, excluding 31,487,261 which are held in
treasury.