Holding(s) in Company

Flomerics Group PLC
10 April 2008

Flomerics Group plc

Holding in Company




TR-1: Notifications of Major Interests in Shares



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

2. Reason for notification (yes/no)
                                                                                        
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 notification
obligation:                                          Mentor Graphics Corporation


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

5. Date of transaction (and date on which the
threshold is crossed or reached if different):       8 April 2008
                                                     

6. Date on which issuer notified:                    10 April 2008
                                                     

7. Threshold(s) that is/are crossed or reached:      Passed the 28% threshold (28.77%)


8: Notified Details
A: Voting rights attached to shares


Class/type of       Situation previous to the Resulting situation after the triggering transaction
shares              triggering transaction
                    Number of    Number of    Number of    Number of voting rights Percentage of voting
If possible use     shares       voting       shares                               rights
ISIN code                        rights

                                                           Direct       Indirect   Direct     Indirect
Ordinary Shares     5,859,715    5,859,715    6,541,715    6,541,715    0          28.77%     0

ISIN GB0003436192


B: Financial Instruments


Resulting situation after the triggering transaction


Type of financial    Expiration date      Exercise/ conversion No. of voting rights  Percentage of voting
instrument                                period/date          that may be acquired  rights
                                                               (if the instrument
                                                               exercised/converted)
N/A                  N/A                  N/A                  N/A                   N/A






Total (A+B)


Number of voting rights                              Percentage of voting rights
6,541,715                                            28.77%


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



Proxy Voting:


10. Name of 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:                                      Dean Freed

                                                      Vice President & General Counsel

                                                      Mentor Graphics Corporation
15. Contact telephone name:                           [phone]






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