Elbit Systems Ltd. is an Israeli defense company engaged in the development and production of combat systems for the combat forces on land, in the air and at sea, in the fields of electronics, electro-optics, artillery, aviation, laser and more. IMI Systems Ltd. is an Israeli company, engaged in the development and production of weapons, ammunition, technologies and systems for the land, air, sea and cyber forces, and for the Homeland and Homeland Security (HLS). 'Zoref plant is an ammunition assembly plant. The workers are intended to work in the artillery department. The work will mainly be preparing projectiles for casting and Preparing 120 mm mortars for post heating.