Total Voting Rights

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC (the “Company”)
LEI - 54930040ALEAVPMMDC31

Voting Rights and Capital (Article 15 Transparency Directive, DTR 5.6)

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 23 May 2018 its issued capital comprised 118,331,000 ordinary shares of £0.01 each, including 635,000 shares held in treasury.

Shareholders should therefore use 118,331,000 (being the Companies issued share capital excluding shares held in treasury) 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:

S Beynsberger
Company Secretary

BlackRock Investment Management (UK) Limited
Tel: [phone]

23 May 2018