Ad-hoc | 31 January 2005 11:32

Silicon Sensor Int. AG: Clear up:Hitech Premium take over more then 5%

Ad hoc update §15 WpHG Hitech Premium N.V. take over more then 5% of Silicon Sensor Int. AG Silicon Sensor Int. AG: Clear up:Hitech Premium take over more then 5% Ad hoc announcement transmitted by DGAP. The issuer is solely responsible for the content of this announcement. —————————————————————————— Clear up for the Ad hoc message § 15 WpHG from January 31, 2005 Hitech Premium N.V. take over more then 5% of Silicon Sensor International AG share capital January 31, 2005 Invision Asset Management AG, Zug, Switzerland, announced after § 21 (1) WpHG to the managing board of Silicon Sensor International AG the take over of more then 5 per cent of Silicon Sensor International AG share capital on January 21, 2005, by Hitech Premium N.V., De Ruyterkade 62 Willemstad, Curacao. Hitech Premium N.V. is a subsidiary company, owned to 100 per cent by Mach Hitech AG. Mach Hitech AG is listed on the switzerland stock exchange and managed by Invision AG. Hitech Premium N.V. possesses 5.06 per cent of Silicon Sensor International AG share capital. Mach Hitech take part in fast growing and innovative european technology companies. Mach Hitech is listed on the switzerland stock exchange. Invision Asset Management AG is a company of the Invision Group. Invision’s investment philosophy is to support portfolio companies in all entrepreneurial aspects and to actively create additional value. Therefore, companies do not only receive funding, but also benefit from the know-how and experience of its management team and its wide network of contacts. This support includes all aspects of the company’s business, from strategy and product development to financial consulting. The managing board of Silicon Sensor International AG welcomes the Hitech Premium N.V., managed by Invision AG, Zug, Switzerland, as a guarantor for further growth. For more information see the web sites: www.silicon-sensor.com, www.machhitech.ch and www.invision.ch or call +49-(0)30-63 99 23 – 99 Silicon Sensor International AG Board of Directors Silicon Sensor International AG Ostendstraße 1 12459 Berlin Deutschland ISIN: DE0007201907 WKN: 720190 Listed: Geregelter Markt in Frankfurt (Prime Standard); Freiverkehr in Berlin- Bremen, Düsseldorf, Hamburg, Hannover und Stuttgart End of ad hoc announcement (c)DGAP 31.01.2005 311132 Jän 05