Holding(s) in Company

RNS Number:4645O
Monterrico Metals PLC
07 August 2003

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1.         Name of company
           Monterrico Metals Plc

2.         Name of shareholder having a major interest
           Amvescap plc

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 interest.  Subsidiary companies of AMVESCAP have a large number of portfolio clients for whom
           they act as investment manager and investment advisor and by virtue of Section 203 of the Companies Act 1985
           AMVESCAP is deemed to have the same interest in the shares.

4.         Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them
           Chase Nominees Limited      895,666 shares*
           Vidacos Nominees Limited   581,000 shares**

           These holdings include the following:
           *   Invesco English and International Trust PLC - 895,666 (7.40%)
           ** Invesco Perpetual UK Smaller Companies Growth Fund - 551,000 (4.55%)

5.         Number of shares/amount of stock acquired
           30,000 shares

6.         Percentage of issued class
           2.5%

7.         Number of shares/amount of stock disposed
           N/a

8.         Percentage of issued class
           N/a

9.         Class of security
           Ordinary 10p Shares

10.        Date of transaction
           6th August 2003

11.        Date company informed
           7th August 2003

12.        Total holding following this notification
           1,476,666 shares

13.        Total percentage holding of issued class following this notification
           12.20%

14.        Any additional information


15.        Name of contact and telephone number for queries

           Christopher Eager,  020 7448 5088

16.        Name and signature of authorised company official responsible for making this notification.
           Christopher Eager, Managing Director







Date of notification: 7th August 2003


                      This information is provided by RNS
            The company news service from the London Stock Exchange
END

HOLUUUCARUPWGQM