Net Asset Value(s)

NET ASSET VALUE

BLACKROCK INCOME STRATEGIES TRUST PLC

The unaudited net asset values for BlackRock Income Strategies Trust plc at
close of business on 28 July 2015 were:

139.76p  Capital only and including debt at par value
134.72p  Capital only and including debt at fair value
142.69p  Including current year income and debt at par value
137.65p  Including current year income and debt at fair value

Notes:

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

2.    Following the buyback of 1,500,000 ordinary shares on 27 July 2015,
the Company has 274,937,282 ordinary shares in issue, excluding 16,175,000 which
are held in treasury.

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

4.    The unaudited NAV above has been calculated on the basis of
274,937,282 Ordinary Shares in issue.