Court of Justice 1 February 2017, C-336/15 (Unionen v Almega Tjänsteförbunden and ISS Facility Services AB.)

OPINION OF ADVOCATE GENERAL TANCHEV delivered on 1 February 2017 ( 1 ) Case C‑336/15 Unionen v Almega Tjänsteförbunden ISS Facility Services AB (Request for a preliminary ruling from the Arbetsdomstolen (Labour Court, Sweden)) ‛Social policy — Directive 2001/23/EC — Safeguarding of employees rights in the event of transfers of undertakings, businesses or parts of undertakings or businesses —