Saudi Tunneling Company for Contracting, a subsidiary of Hassan Allam Construction KSA, is proud to announce that it has been ISO certified in three ISO standard Certifications, “ISO 9001”, “ISO 14001”, and “ISO 45001”, with zero non-conformity from Intertek in November 2022. 
 
We always aim to provide our clients with high-level services, superior quality, and unparalleled safety measures.