Holding(s) in Company

TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES

(1). Identity of the issuer or the underlying issuer of existing shares to
which voting rights are attached (ii):

BlackRock North American Income Trust plc

(2). Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights: (X)

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: ( )

An acquisition or disposal of instruments with similar economic effect to
qualifying financial instruments: ( )

An event changing the breakdown of voting rights: (X)

Other (please specify): ( )

(3). Full name of person(s) subject to the notification obligation (iii):

Brewin Dolphin Limited

(4). Full name of shareholder(s) (if different from 3.) (iv):


(5). Date of the transaction (and date on which the threshold is crossed or
reached if different) (v):

16 October 2013

(6). Date on which issuer notified:

17 October 2013

(7). Threshold(s) that is/are crossed or reached:

18%

(8). Notified details:

A: Voting rights attached to shares

Class/type of shares (if possible using the ISIN code): Ord/GB00B7W0XJ61

Situation previous to the triggering transaction (vi):
Number of Shares: 14,373,638
Number of Voting rights (viii): 14,373,638

Class/type of shares (if possible using the ISIN code): C-Shares GB00BD032B44

Situation previous to the triggering transaction (vi):
Number of Shares: Below 5%
Number of Voting rights (viii): Below 5%

Resulting situation after the triggering transaction (vii): Ord/GB00B7W0XJ61
Number of shares: n/a
DIRECT: n/a
Number of voting rights (ix):
Direct (x): n/a
Indirect (xi): 15,196,490
% of voting rights:
Direct: n/a
Indirect: 15.1982%

Resulting situation after the triggering transaction (vii): C-Shares
GB00BD032B44

Number of shares: n/a
DICECT: n/a
Number of voting rights (ix):
Direct (x): n/a
Indirect (xi): 3,907,497
% of voting rights:
Direct: n/a
Indirect: 3.9079%

B. Financial Instruments

Resulting situation after the triggering transaction (xii):

Type of financial instrument:

Expiration date (xiii):

Exercise/Conversion Period/Date (xiv):

Number of voting rights that may be acquired if the instrument is exercised/
converted:

% of voting rights:

C. Financial Instruments with similar economic effect to Qualifying Instruments
(xv), (xvi)

Resulting situation after the triggering transaction:

Type of financial instrument:

Exercise Price:

Expiration date (xvii):

Exercise/Conversion Period/Date (xviii):

Number of voting rights instrument refers to:

% of voting rights (xix) (xx):

Nominal:
Delta:

Total (A + B + C):

Number of voting rights: 19,103,987

% of voting rights: 19.1061%

(9). Chain of controlled undertakings through which the voting rights and/or
the financial instruments are effectively held, if applicable (xv):

Ordinary Shares

Indirect - Brewin Nominees (Channel Islands) Limited   140430      0.1405 %   
Indirect - Brewin Nominees Limited                    1767239      1.7674 %   
Indirect - Giltspur Nominees Limited                  7204106      7.2049 %   
Indirect - BDS Nominees Limited                       3917899      3.9183 %   
Indirect - Brewin Nominees Limited A/c Charity        1652640      1.6528 %   
Indirect - Brewin Nominees Limited A/c Offbond         514176      0.5143 %   

C-Shares

Indirect - Brewin Nominees (Channel Islands) Limited    37000      0.0370 %   
Indirect - Brewin Nominees Limited                     550487      0.5506 %   
Indirect - Giltspur Nominees Limited                  1986415      1.9866 %   
Indirect - BDS Nominees Limited                       1099860      1.1000 %     
Indirect - Brewin Nominees Limited A/c Charity         152095      0.1521 %   
Indirect - Brewin Nominees Limited A/c Offbond          81640      0.0816 %   

Proxy Voting:

(10). Name of the proxy holder:

N/A

(11). Number of voting rights proxy holder will cease to hold:

N/A

(12). Date on which proxy holder will cease to hold voting rights:

N/A

(13). Additional information:

Figures based on shares in issue of (C Class) 15,500,000 & (Ord Class) 84,488,500 total 
shares 99,988,500. The indirect voting rights under (9) relate to shares held in client 
portfolios, managed by those firms, under discretionary investment management agreements.   

(14). Contact name:

A B Powley
For BlackRock Investment Management (UK) Limited
Secretary

(15). Contact telephone number:

020 7743 5610


18 October 2013