Rock Salt From Egypt With High Quality. SIWA Rock Salt, the Purest in the Nature. Our product Rock Salt from Egypt from Siwa Oasis, one of the highest qualities in the world. We always have 50,000mt ready to load stock. We can supply upto 70000mt per month, Siwa salt is perfect for many applications. Industrial, oil drilling, petrochemicals, Deicing Roads in Winter. For more Go ogle Ghadan Salt. We process the highest quality Rock Salt NaCl: >98% Moisture: