Sang Saz Renan Co. is the largest manufacturing and processing of natural Onyx, Marble & Travertine stones in Iran. Sang Saz Renan factory is established in the built manufacturing halls with a 6 gang saws and 2 block cutters and fully automatic Italian machines on 2009 in total surface area of 10,000 Sqm, by two production lines of slabs and tiles with a total annual production of 1,200,000 Sqm. Beside of supplying domestic demands, the products are exporting to other major markets across the world as well. Its own quarries are 6 quarries major in: white onyx, Black marble, Cream and blue marble and white and Beige travertine. Sang Saz Renan Co. has succeeded to be granted international certificates as ISO9001, ISO14001 and OHSAS18001.