Contact Gas Transmission System Operator GAZ-SYSTEM S.A.ul. Mszczonowska 402-337 Warszawa +48 22 220 18 00 +48 22 220 16 06 kontakt@gaz-system.pl GAZ-SYSTEM RODO rodo@gaz-system.pl GAZ-SYSTEM Recruitment rekrutacja@gaz-system.pl GAZ-SYSTEM EPUAP: /GAZ-SYSTEM_SA/SkrytkaESP For Stakeholders For Customers For the Media For Suppliers Laboratories For landowners (to branches) Contact details Head Office and Management Board Divisons Brussels Office Branches CERT