Holding(s) in Company

SCHEDULE 10                                  

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES                   

1) Name of company

BlackRock Commodities Income Investment Trust plc

2) Name of shareholder having a major interest

Nutraco Nominees Limited

3) Please state whether notification indicates that it is in respect of holding of the 
shareholder named in 2 above or in respect of a non-beneficial interest or in the case 
of an individual holder if it is a holding of that person's spouse or children under the age of 18

non-beneficial

4) Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them

Nutraco Nominees Limited

5) Number of shares/amount of stock acquired

Not notified

6) Percentage of issued class

Not notified

7) Number of shares/amount of stock disposed

Not notified

8) Percentage of issued class

Not notified

9) Class of security

Ordinary shares of 1p each

10) Date of transaction

n/a

11) Date company became aware of holding

n/a

12) Total holding following this notification

1,621,096

13) Total percentage holding of issued class following this notification

2.17%

14) Any additional information

These shares are held on behalf of participants in the BlackRock Investment
Trust savings products. BlackRock Investment Management (UK) Limited has a notifiable
interest in these shares because, in certain circumstances and subject to certain limitations
agreed with the Takeover Panel to ensure compliance with the Takeover Code, with effect
from 14 March 2007 BlackRock is entitled to exercise the voting rights attached to
these shares if the relevant plan participants do not do so.

15) Name of contact and telephone number for queries

Kerry V Higgins
Tel: [phone]

16) Name and signature of authorised company official responsible for making this notification

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

Date of notification:

2 September 2009