Zaklad Ubezpieczen Spolecznych I Oddzial w Warszawie (Social security for migrant workers - Worker who has been employed in two Member States - Judgment)

(Reference for a preliminary ruling – Social security for migrant workers – Regulation (EC) No 883/2004 – Article 52(1)(b) – Worker who has been employed in two Member States – Minimum period required by national law for acquisition of entitlement to a retirement pension – Account taken of the contribution period completed under the legislation of another Member State – Aggregation – Calculation of the amount of the retirement benefit to be paid)

REQUEST for a preliminary ruling under Article 267 TFEU from the Sąd Najwyższy (Supreme Court, Poland), made by decision of 19 September 2019, received at the Court on 27 November 2019, in the proceedings

composed of A. Prechal, President of the Second Chamber, acting as President of the Third Chamber, J. Passer, F. Biltgen (Rapporteur), L.S. Rossi and N. Wahl, Judges,

– the Zakład Ubezpieczeń Społecznych I Oddział w Warszawie, by J. Piotrowski and S. Żółkiewski, radcowie prawni,

– the Czech Government, by M. Smolek, J. Pavliš and J. Vláčil, acting as Agents,