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 14 May 2015 were:

122.51p Capital only
124.31p Including current year income

Notes:

1. Investments have been valued on a bid price basis.

2. 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.

2. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.

3. Following the implementation of the Tender Offer on 4 February 2015,
20,072,261 Ordinary Shares tendered have been transferred into Treasury.
Following the implementation of the Tender Offer, the Company now has
100,361,305 Ordinary Shares in issue including 20,072,261 Ordinary Shares which
are held in Treasury. The number of Ordinary Shares in issue, less the number
of Ordinary Shares in Treasury, is 80,289,044.