The study analyses the experience of posted TCN workers in selected case study countries – Poland, Portugal and Slovenia – and during their posting assignments to other EU Member States. It is an operational study commissioned by the European Labour Authority analysing the contracting chains by mapping public and private actors and labour market intermediaries involved in the posting supply chain with an objective to provide information that allows better targeting of operational activities for both ELA and the stakeholders. During the fieldwork in-depth interviews were conducted with posted TCN workers from Ukraine, Brazil and Portugal, and national enforcement authorities and social partner organisations in the case study countries. The study is published as ELA's Strategic Analysis and can be downloaded here.