Yamama Granite & Marble Co. (YGM) is considered as one of the pioneer companies in the field of producing granite. The company owns many quarries spread all over the Kingdom of Saudi Arabia, producing a wide range of distinctive colors. YGM Factory is located in Muzahmia and considered as one of the largest and advanced factories in the Middle East, Established on 1999 It is equipped with the most advanced machineries operated by highly qualified workmanship with monthly production of 120.000 meter square .