Net Asset Value(s)

NET ASSET VALUE

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC

Following developments in the US overnight and the closure of financial
exchanges due to Hurricane Sandy, the US equity exchanges were closed on 30
October 2012. Given that there are no official prices for many US traded
securities, today's NAV has been calculated using the closing bid market prices
of US listed securities on Friday, 26 October 2012.

The unaudited net asset values for BlackRock Commodities Income Investment
Trust plc at close of business on 30 October 2012 were:

119.07p Capital only
119.82p Including current year income

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 94,258,000 ordinary
shares in issue.
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).