As part of legality and maintaining quality, the company has certified its quarry and asphalt products, which bear the CE mark. It fully implements all Legislative provisions and international standards such as the Construction Products Regulation and maintains Certificates of compliance of production control at the Quarry and at the bitumen production unit.

Also, since 2002 it has implemented the Quality Management System according to the EN ISO 9001:2000 standard and since 2010 according to the EN ISO 9001:2008 standard for all three its activities (Concrete – Aggregate Materials – Asphalt Mixtures). Subsequently, in 2017, it updates the Quality Management System according to the current Standard EN ISO 9001:2015.
The certification body and issuer of the certificates is the notified body TUV Hellas S.A.