Holding(s) in Company

Flomerics Group PLC
30 April 2008


Flomerics Group plc

TR-1: Notifications of Major Interests in Shares

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

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    Mentor Graphics Corporation
obligation:

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

5. Date of transaction (and date on which the        28 April 2008
threshold is crossed or reached if different):
                                                     
6. Date on which issuer notified:                    29 April 2008
                                                     

7. Threshold(s) that is/are crossed or reached:      Passed the 25% threshold (29.98%)


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   6,541,715    6,541,715    6,821,715    6,821,715   0           29.98%       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

6,821,715                                            29.98%


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]








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