Holding(s) in Company

Rurelec PLC
21 May 2007

                                  Rurelec PLC

                              Holdings in Company

               TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES


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


Rurelec PLC


2. Reason for the notification


An acquisition or disposal of voting rights


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


Royal Bank of Scotland Plc as Trustee of the Merryl Lynch UK Smaller Companies
Fund.


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

.................


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


15 May 2007


6. Date on which issuer notified:


16 May 2007


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


Gone above 4%


8. Notified details:

.................

A: Voting rights attached to shares

Class/type of shares if possible using    Situation previous to the Triggering
the ISIN CODE                                       transaction (vi)
                                        Number of      Number of voting Rights
                                        shares         (viii)

GB00B01XPW41                            n/a            n/a



Resulting situation after the triggering transaction (vii)

Class/type of shares if      Number of    Number of voting      % of voting
possible using the ISIN CODE shares       rights (ix)           rights

                             Direct       Direct (x)   Indirect Direct  Indirect
                                                       (xi)

GB00B01XPW41                  3,000,000    3,000,000   n/a       4.18%  n/a


B: Financial Instruments

Resulting situation after the triggering transaction (xii)

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







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

         3,000,000                                4.18%


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

.................


Proxy Voting:


10. Name of the proxy holder:

.................


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

.................


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

.................

13. Additional information:

.................


14. Contact name:

.................


15. Contact telephone number:

.................


Annex to Notification of Major Interests in Shares (xvi)


A: Identity of the person or legal entity subject to the notification obligation


Full name (including legal form for legal entities):


Royal Bank of Scotland plc as Trustee of the Merrill Lynch UK Smaller Companies
Fund


Contact address (registered office for legal entities):


33 King William Street, London EC4R 9AS


Phone number:


0207743 2098


Other useful information (at least legal representative for legal persons):


Thomas Hone


B: Identity of the notifier, if applicable (xvii)


Full name:


BlackRock Inc


Contact address:

33 King William Street, London EC4R 9AS


Phone number:


020 7743 2098


Other useful information (e.g. functional relationship with the person or legal
entity subject to the notification obligation):


Thomas Hone


C: Additional information :

.................







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