Holding(s) in Company

RCM Technology Trust PLC
07 June 2007


TR-1:   NOTIFICATION OF MAJOR INTERESTS IN SHARES 


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

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

An acquisition or disposal of voting rights                                                      yes

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                      JPMorgan Chase & Co
obligation:

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

5. Date of the transaction and date on which the threshold is                  05/06/2007
crossed or reached:

6. Date on which issuer notified:                                              06/06/2007

7. Threshold(s) that is/are crossed or reached:                                    10%

8. Notified details:



A: Voting rights attached to shares
Class/type of     Situation previous to   Resulting situation after the triggering transaction
shares            the Triggering
                  transaction
if possible using Number of  Number of    Number of   Number of voting rights  % of voting rights
the ISIN CODE     Shares     Voting       shares
                             Rights       Direct      Direct      Indirect     Direct       Indirect
GB0003390720      1,400,000  1,400,000    2,575,000               2,575,000                  10.75%




B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial    Expiration date Exercise/ Conversion      Number of voting rights    % of voting
instrument                           Period/ Date              that may be acquired if    rights
                                                               the instrument is
                                                               exercised/ converted.
      N/A


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

  2,575,000                                         10.75%





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

Total disclosable holding for JPMorgan Chase & Co: 2,575,000 (10.75%)

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

JPMorgan Asset Management (UK) Limited: 2,575,000 (10.75%)


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:                  Please note the group has other holdings which are covered by
                                             exemptions.

14. Contact name:                                                      Kirsten Salt

15. Contact telephone number:                                         020 7065 1513




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