Holding(s) in Company

STM Group PLC
06 July 2007


                                 STM Group plc

                            ('STM' or 'the Company')

                             Holding(s) in Company

Pursuant to Rule 17, Schedule Five of the AIM Rules, the Company has today been
notified that STM Fidecs Nominees Limited is interested in 6,558,702 ordinary
shares representing 18.42 per cent. of the Company's current issued share
capital.

Enquiries:

Timothy Revill, Chief Executive Officer
STM Group plc                                  Tel: + 350 51610

Lindsay Mair/Tessa Smith
Daniel Stewart & Company plc                   Tel: [phone]



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