Diam (Public Authority for Water): By Royal Decree No 42/2018, Public Authority for Electricity & Water is renamed as Public Authority for Water. Public Authority for Electricity & Water was established by the Law promulgated by Royal Degree 92/2007 with effect from 9th September 2007. Diam's Vision: To ensure the provision of high quality, sustainable and reliable potable water services to all people in the Sultanate of Oman Diam's Mission: Working towards establishing water transmissions and distribution networks and applying systems to manage them with high efficiency. Diam's Values: 1. Be a customer oriented organisation, 2. Achieve operational efficiency, 3. Be a world class utility provider, 4. Develop our Human Resources.