Prince Miteb bin Abdulaziz, the Minister of Municipal and Rural Affairs, will open tomorrow in Bahra the factory of prefabricated concrete. He will also open the first phase of the project of linking King Khalid Road in Mina with Makkah-Taif Highway. Meanwhile, Prince Miteb will lay the foundation stone for the project of developing the Jamarat Zone in Mina. The project will be implemented after this year's Hajj season. Dr Habib bin Musta Zeinal-Abdeen, the undersecretary of the ministry of municipal and rural affairs, said the project of developing the jamarat zone will be implemented by a national company at a total cost of more than SR 4 billion.