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

1,173,285

13) Total percentage holding of issued class following this notification

1.66%

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 Higgins

Tel: [phone]

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

this notification

Kerry Higgins

Company Secretary

BlackRock Investment Management (UK) Limited

Date of notification:

1 July 2008