Holding(s) in Company

RNS Number:3543Z
International Nuclear Solutions PLC
29 June 2007

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:

INTERNATIONAL NUCLEAR SOLUTIONS PLC

2. Reason for the notification (please place an X inside the appropriate bracket
/s):

An acquisition or disposal of voting rights: (X)

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) : ( )

3. Full name of person(s) subject to the notification obligation:

The Goldman Sachs Group, Inc.

4. Full name of shareholder(s) (if different from 3.) :

Goldman, Sachs & Co.

5. Date of the transaction (and date on which the threshold is crossed or
reached if different):

26 JUNE 2007

6. Date on which issuer notified:

28 JUNE 2007

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

Below 3%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares if possible Situation previous to the Triggering transaction
using the ISIN CODE
GB00B12QZ964 3,190,080 5.12%

Resulting situation after the triggering transaction

Class/type of shares if Number of shares Number of voting rights % of voting rights
possible using the ISIN CODE
Direct Direct Indirect Direct Indirect

B: Financial Instruments

Resulting situation after the triggering transaction

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

Total (A+B)
Number of voting rights % of voting rights

Below 3%

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

We hereby notify you that as at close of business on 26 June 2007, The Goldman
Sachs Group, Inc., of 85 Broad Street, New York, NY 10004, USA, no longer has a
notifiable interest in shares.

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

13. Additional information:

14. Contact name:

Geoff Mellor

15. Contact telephone number:

0161 222 5500