Net Asset Value(s)

NET ASSET VALUE

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC
54930040ALEAVPMMDC31

The unaudited net asset values for BlackRock Commodities Income Investment
Trust plc at close of business on 9 March 2018 were:

75.74p  Capital only
77.12p  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.        Following the buyback of 52,000 shares on 12 January 2018, the
Company now has 118,716,000 ordinary shares in issue excluding 52,000 shares 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).