First day of dealings on AIM

Calyx Group PLC 17 March 2005 FOR IMMEDIATE RELEASE 17 March 2005 Calyx Group plc ('Calyx', the 'Group' or the 'Company') First day of Dealings on AIM Calyx, one of the largest single-source providers of information and communication technology ('ICT') network solutions throughout Ireland, is pleased to announce the commencement of trading in its shares on AIM under the ticker symbol: CLX.L. The Group has a broad client base to which it offers ICT network design, sales, installation, training and support through two business divisions, voice communications and data communications, which are sustained by customer support and contact centre services. Calyx also provides these services to businesses and enterprises in Northern Ireland. The Group operates from headquarters in Dublin and regional offices in Cork and Limerick. At the issue price of 55 pence per share, the Company raised £7.25 million (€10.5 million) before expenses through an institutional placing of 13,181,818 ordinary shares. On Admission and at the issue price the market capitalisation will be approximately £21 million (€31 million). Evolution Securities Limited is the Company's Nominated Adviser and Nominated Broker. Placing statistics Placing Price 55p Gross proceeds of the Placing £7.25 million Estimated proceeds of the Placing to be received by the Company after expenses £6.31 million Number of Ordinary Shares being issued pursuant to the Placing 13,181,818 Number of Ordinary Shares in issue following the Placing 38,181,813 Placing shares as a percentage of the Enlarged Issued Ordinary Share capital on Admission 34.52 per cent. Market capitalisation of the Company following the Placing at the Placing Price £21 million Expected timetable for admission Admission effective and dealings in the Ordinary Shares expected to commence on AIM 17 March 2005 CREST accounts to be credited with Ordinary Shares 17 March 2005 Despatch of definitive share certificates (where applicable) 24 March 2005 For further details please contact: Calyx Group plc Maurice Healy, Chief Executive Tel: +353 1 886 7444 Evolution Securities Limited Tom Price / Tim Redfern / Simon Leathers Tel: 020 7071 4300 Buchanan Communications Tim Thompson / James Strong Tel: 020 7466 5000 This information is provided by RNS The company news service from the London Stock Exchange