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 10 August 2015 were:

143.43p  Capital only and including debt at par value
138.26p  Capital only and including debt at fair value
145.75p  Including current year income and debt at par value
140.57p  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 250,000 ordinary shares on 29 July 2015, the
Company has 274,687,282 ordinary shares in issue,
          excluding 16,425,000 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
274,687,282 Ordinary Shares in issue.