The implementation of the Management Systems of MICHAEL M. TSONTOS S.A. is carried out according to the standards ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certified by TÜV HELLAS (TÜV NORD).
The implementation of the Management Systems of MICHAEL M. TSONTOS S.A. is carried out according to the standards ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certified by TÜV HELLAS (TÜV NORD).
