Conversion of Securities

 
TIDMBRCI TIDMBRCC 
 
Conversion of C Shares 
 
BlackRock Commodities Income Investment Trust plc 
 
19 October 2010 
 
BlackRock Commodities Income Investment Trust plc (the "Company") announces 
that the C Shares currently in issue will be converted into Ordinary Shares at 
the following rate calculated in accordance with the Company's prospectus dated 
1 September 2010 (the "Prospectus"): 
 
0.7454 Ordinary Shares for every C Share (the "Conversion Ratio") 
 
On the basis of the Conversion Ratio, a holder of 1,000 C Shares will receive 
745 Ordinary Shares in accordance with the following timetable: 
 
Admission of new Ordinary Shares to                           2 November 2010 
the Official List and to trading on 
the London Stock Exchange 
 
Crediting of CREST accounts with new                          2 November 2010 
Ordinary Shares 
 
Share certificates in respect of new          week commencing 8 November 2010 
Ordinary Shares expected to be 
despatched by 
 
 
The C Shares will be delisted on 2 November 2010 and an application will be 
made for 14,908,000 new Ordinary Shares to be admitted to the Official List and 
to trading on the London Stock Exchange from the same date. 
 
The new Ordinary Shares will not receive the Second Special Dividend but will 
rank pari passu with the existing Ordinary Shares in all other respects from 
2 November 2010. 
 
The C Shares will also convert, in aggregate, into 185,092,000 Deferred Shares. 
The Deferred Shares will be purchased by the Company on 2 November 2010 for an 
aggregate value of GBP0.01 per 1,000,000 Deferred Shares and automatically 
cancelled. 
 
Terms defined in the Prospectus shall have the same meaning in this 
announcement. 
 
 
For further information: 
 
Blackrock Commodities Income Investment Trust plc 
Jonathan Ruck Keene / Kerry Higgins 
[phone] 
 
J.P. Morgan Cazenove Limited 
William Simmonds 
Tel: [phone] 
 
 
 
END