Total Voting Rights

29 May 2015

               BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC               

                                (the "Company")                                

TOTAL VOTING RIGHTS

In conformity with the FCA's Disclosure and Transparency Rules ("the Rules"),
provision 5.6.1, the Company would like to notify the market that as at 29 May
2015 its issued capital comprised 108,658,000 ordinary shares of £0.01 each.
There were no shares held in treasury.

Shareholders should use 108,658,000 as the denominator for the calculations by
which they will determine if they are required to notify their interest in, or
a change to their interest in the Company under the Rules.

All enquiries:
Mrs A B Powley
Company Secretary
BlackRock Investment Management (UK) Limited
Tel: [phone]