Net Asset Value(s)

NET ASSET VALUE

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC

The unaudited net asset value for BlackRock Commodities Income Investment Trust
plc at close of business on 24 June 2011 was:

142.59p Capital only (undiluted)
144.49p Including current year income (undiluted)

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. The unaudited NAV above has been calculated based on 90,508,000 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).