New Format of Annual Reports SEF or the European Single Electronic Format is a new requirement concerning the form in which the annual financial reports of companies listed on stock markets in Europe must be prepared. The requirement applies to all Issuers from the European Union whose securities have been admitted for trading on a regulated market within the EU. In Poland, for example, this applies to companies listed on the Warsaw Stock Exchange.  The Comarch ESEF application is a tool for generating financial reports which comply with the latest requirements Sign up for a demo Price List