Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz will patronize on Tuesday the launching ceremony of a number of development and industrial projects in the city of Industrial Jubail. The launching ceremony will be held by the Royal Commission of Jubail and Yanbu, SABIC company and other private sector companies, Prince Saud bin Abdullah bin Thunayan Al Saud, head of the commission told Saudi Press Agency. He added that the total value of the projects' investments exceeds SR54 billion.