AlMaha · Standards ASTM C503

Standards & Certifications

Every shipment is tested, certified, and traceable, to Omani specifier, contractor, and ministerial-board requirements.


Oman Standards Authority

Tested and registered with the Oman Standards & Metrology Authority for natural-stone building products.


OPAZ Industrial Registry

Operating from the Al Rusail Industrial Area, OPAZ-registered industrial producer.


Royal Court approved

Approved materials supplier for Diwan of the Royal Court and ministerial projects.


Bureau Veritas

Independent international certification of material quality on every batch.


ASTM tested

American Society for Testing and Materials methods applied to every shipment.


CE EN 1469 marking

European conformity for cladding stone, accepted on Oman's international-tender projects.

Certifications & references
OMAN STANDARDS AUTHORITY OPAZ INDUSTRIAL REGISTRY ROYAL COURT APPROVED BUREAU VERITAS ASTM C503 CE EN 1469