Net Asset Value(s)

NET ASSET VALUE

BLACKROCK INCOME STRATEGIES TRUST PLC

The unaudited net asset values for the ordinary shares of BlackRock Income
Strategies Trust plc at close of business on 21 July 2015 were:

142.36p   Capital Only: Debt at par
137.88p   Capital Only: Debt at Fair Value
145.18p   Including current year revenue: Debt at par
140.70p   Including current year revenue: 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 21 July 2015,
the Company has 277,837,282 ordinary shares in issue,
           excluding 13,275,000 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
277,837,282 Ordinary Shares in issue.