Ad Hoc Publicity And Reporting Requirements: SWX Swiss Exchange Initiates Investigation Of Zwahlen & Mayr SA

The SWX Swiss Exchange has instituted an investigation of Zwahlen & Mayr SA regarding a possible violation of Art. 72 of the Listing Rules and the Directive on Ad hoc Publicity and the relevant Reporting requirements. The preliminary investigation conducted by the SWX has revealed that, in connection with the resignation of Mr. Eric Decroux, CFO and member of senior management, the aforementioned rules may have been violated. The duration of these investigative proceedings has not been determined. The SWX will provide information on the outcome of its investigation. No information will be made public with regard to the ongoing investigation. SWX will announce the ultimate results, but will not provide any further information on the current proceedings. Should