Petards Group plc provided group earnings guidance for year ended December 31, 2017. The Group's profit before tax for the year ended 31 December 2017 is expected to be above market expectations due to the positive net effect of exceptional items arising in the year. The Group expects to report 2017 revenues to be up year on year to £15.6 million. However, some delays in programmes to develop additional software functionality for eyeTrain systems has resulted in approximately £1 million of revenues being deferred into 2018. These relate to scheduled deliveries of both software and equipment and accordingly profit before tax from trading operations will be lower than previously expected.