This research report prepared by Katarina Hollan and Sonila Danaj in the frame of the POOSH Project provides first insights on the OSH vulnerabilities of temporary migrant workers in Slovakia, particularly posted workers and third country national workers. The authors explain the multiple vulnerabilities temporary migrant workers face in the country, spanning from employment and contractual conditions, wages and working conditions, social and health insurance, to accommodation, language barriers and social isolation. The national OSH structures, mechanisms and procedures as well as cross-border institutional exchange on the OSH of posted workers are also discussed. The report finds that in view of Slovakia’s fast becoming a host country, there is a low awareness of issues related to temporary migrant workers, in particular their OSH situation.