Maaden
It is produced from the electrolysis of brine, along with chlorine which is later used in the manufacture of ethylene dichloride (EDC). Ma'aden and Sahara Petrochemical Company agreed on March 2011 to produce caustic soda and dichloride ethylene through Sahara Ma'aden Petrochemical Company, which is owned by Sahara and Ma'aden with 50% each.
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