Dividend Declaration

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC

ANNOUNCEMENT OF QUARTERLY INTERIM DIVIDEND

15 March 2011

The Board of BlackRock Commodities Income Investment Trust plc is pleased to
announce that the first quarterly interim dividend in respect of the year to 30
November 2011 of 1.400p per ordinary share has been declared by the Directors,
payable on 21 April 2011 to holders of ordinary shares on the register at the
close of business on 25 March 2011 (ex dividend date is 23 March 2011).

Enquiries:

Kerry V Higgins
BlackRock Investment Management (UK) Limited, Secretary

Telephone: [phone]