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 30 June 2015 were:

138.40p   Capital Only: Debt at par
133.73p   Capital Only: Debt at Fair Value
140.77p   Including current year revenue: Debt at par XD
136.11p   Including current year revenue: Debt at Fair Value XD

Notes:

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

2. Following the buyback of 1,500,000 ordinary shares on 30 June 2015,
the Company has 282,337,282 ordinary shares in issue, excluding 8,775,000 
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
282,337,282 Ordinary Shares in issue.