Holding(s) in Company

STM Group PLC
06 September 2007


                                 STM Group plc

                            ('STM' or the Company')

                             Holding(s) in Company



The Company was informed on 6 September 2007 that Silvina Holdings Limited is
now the beneficial owner of 2,432,773 Ordinary Shares in STM Group plc
representing 6.48 per cent. of the total issued share capital.


For further information:


STM Group plc Tel: [phone]
Tim Revill, Chief Executive Officer

Daniel Stewart & Company plc Tel: [phone]
Lindsay Mair
Stewart Dick






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