Dividend Declaration

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC

ANNOUNCEMENT OF QUARTERLY INTERIM DIVIDEND

21 June 2011

The Board of BlackRock Commodities Income Investment Trust plc is pleased to
announce that the second quarterly interim dividend in respect of the year to
30 November 2011 of 1.40 pence per ordinary share has been declared by the
Directors, payable on 22 July 2011 to holders of ordinary shares on the
register at the close of business on 1 July 2011 (ex dividend date is 29 June
2011).

Enquiries:

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

Telephone: [phone]