Net Asset Value(s)

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC

The unaudited net asset values for BlackRock Commodities Income Investment
Trust plc at close of business on 6 July 2012 were:

115.34p Capital only
115.79p Including current year income XD

Notes:

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

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

3. Following the issue of 250,000 ordinary shares on 22 June 2012, the
unaudited NAV above has been calculated based on 93,508,000 ordinary shares in
issue, there are no shares held in treasury.

4. For the latest daily net asset value, previous month end performance
statistics, asset allocation and ten largest holdings of the BlackRock managed
Investment Trusts; see BLRKINDEX on Reuters or page 8800 on ICB (Topic 3).