Holding(s) in Company

RNS Number:4043R
Firestone Diamonds PLC
16 February 2007

TR-1(i): notification of major interests in shares

1. Identity of the issuer or the underlying issuer of existing Firestone Diamonds plc
shares to which voting rights are attached(ii):

2. Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

An acquisition or disposal of financial instruments which may result in the acquisition of
shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify): Notification of holding at 20 January 2007 X

3. Full name of person(s) subject to the notification obligation JP Morgan Chase & Co.
(iii):

4. Full name of shareholder(s) (if different from 3.)(iv): JP Morgan Asset Management (UK)
Limited

5. Date of the transaction and date on which the threshold is N/A
crossed or reached(v):

6. Date on which issuer notified: 14/02/2007

7. Threshold(s) that is/are crossed or reached: 5% threshold

8. Notified details:

A: Voting rights attached to shares

Class/type of Situation previous to Resulting situation after the triggering transaction(vii)
shares the Triggering
transaction (vi)
if possible Number of Number of Number of Number of voting rights % of voting rights
using the ISIN Shares Voting shares ix
CODE Rights
viii Direct Direct x Indirect xi Direct Indirect

Firestone N/A N/A 0 0 3,065,536 0 5.50
Diamonds plc
(ISIN
GB0003915336)

B: Financial Instruments

Resulting situation after the triggering transaction xii

Type of financial Expiration date Exercise/ Conversion Number of voting rights % of voting
instrument xiii Period/ Date xiv that may be acquired if rights
the instrument is
exercised/ converted.

N/A

Total (A+B)

Number of voting rights % of voting rights

3,065,536 5.50

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively
held, if applicable xv:

Total disclosable holding for JP Morgan Chase & Co. : 3,065,536 Voting rights (5.50%)

Holdings by controlled undertakings of JP Morgan Chase & Co. are as follows:

JP Morgan Asset Management (UK) Limited : 3,065,536 Voting rights (5.50%)

Proxy Voting:

10. Name of the proxy holder: N/A

11. Number of voting rights proxy holder will cease to hold: N/A

12. Date on which proxy holder will cease to hold voting rights: N/A