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 22 May 2018 were:

89.61p  Capital only
90.76p  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 84,000 ordinary shares on 22 May 2018, the
Company now has 118,247,000 Ordinary Shares in issue (excluding 719,000
Ordinary Shares which are 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).