European Union – Employment. In the course of proceedings between a Finnish trade union in the electricity sector and a company established in Poland, regarding pay claims arising out of employment relationships, the Court of Justice of the European Union made a preliminary ruling concerning, amongst other things, the interpretation of arts 56 and 57 of the Treaty on the Functioning of the European Union and art 3 of Directive (EC) 96/71 (concerning the posting of workers in the framework of the provision of services).