Sinaiyah al-Jadidah, officially Second Industrial City, is an industrial district in eastern-southernmost Riyadh, Saudi Arabia, located east of al-Misfat and south of Iskan along the al-Kharj Road in the sub-municipality of al-Sulay. It was established in 1976 during the reign of King Khalid bin Abdulaziz as part of the second national five-year development plan of 1975–1980. It assumed its current name around 1984 and covers an area of 4700 acres. It is overseen by the Saudi Authority for Industrial Cities and Technology Zones (MODON).