Directorate Change

BlackRock Commodities Income Investment Trust plc ("the Company")

Appointment of Additional Director

The Board is pleased to announce the appointment of Michael Merton as an
additional non-executive director of the Company with effect from 13 July 2010.
Mr Merton will also serve as a member of the Company's Audit and Management
Engagement Committee.

Until 2009 Mr Merton was a non-executive director of Quadrem International and
Chairman of the Rio Tinto Pension Fund, of which he remains a trustee Michael
was also Head of Global Business Services and a member of Rio Tinto's Executive
Committee. He has considerable experience in the commodities sector and will be
a valuable contributor to boardroom discussions.

Mr Merton had no interest in any of the ordinary shares of the Company at the
date of his appointment.

There are no further details or disclosures required under Section 9.6.13R (1 -
6) of the Financial Services Authority Listing Rules.

13 July 2010
Kerry V Higgins - Company Secretary
Tel: [phone]