Since 2000, Dionyssomarble Group has adapted the activities of its main companies to the requirements of the ISO 9001 standard for quality management.
In March 2001, Dionysos-Penteli Marble Quarries S.A. was certified for the first time.
Since then, the certificates are being renewed on a yearly basis, following relevant audits by the certification body.
The ISO 9001 certification and the applicable quality management system also contribute to the company's effort to minimise any deviations from the target quality level of products and services. QUARRIES S.A. has developed and implements a Quality Management System according to ISO 9001:2015 by the certification body BQC.
The company has also developed a control and production procedures system in the mill plant, through which it provides CE marking (according to harmonised EN standards) to the products. Furthermore, it provides declarations of conformity to its customers, depending on the use for which those materials are intended.