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 17 July 2015 were:

142.58p   Capital Only: Debt at par
138.09p   Capital Only: Debt at Fair Value
145.31p   Including current year revenue: Debt at par
140.82p   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 7 July 2015,
the Company has 280,837,282 ordinary shares in issue,  excluding 10,275,000
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
280,837,282 Ordinary Shares in issue.