The Abu Zaabal Engineering Industries Company or Military Factory 100 (مصنع 100 الحربي), is an Egyptian government joint-stock company, one of the companies of the National Authority for Military Production affiliated with the Ministry of Military Production.[2][3] It was established in 1974 and reopened in 1983 in the Abu Zaabal area of Qalyubia Governorate on an area of approximately 730 acres with the aim of securing the needs of the Egyptian Armed Forces for types of artillery (medium and heavy).[4][5][6][7][3]