Ghargabad Saveh region is considered as one of the oldest, largest and highest quality gypsum extraction areas in Iran. Sepid Gatch Saveh factory has been built due to the existence of these rich mines in this region and has been supplied from these mines located 10 to 20 km away from the factory, such as Palangabad, Qarluq and Visman. In order to maintain the quality of the products and due to the complete ownership of the mines in operation, before the extraction of gypsum, the mines are examined in terms of quantity and quality and samples are sent to the factory laboratory for complete physical and chemical testing. If approved by the expert of the quality control unit, an extraction order will be issued to the mine. At the same time, daily quality control to ensure the quality of products is on the agenda.