Green hydrogen “is as clean as you can get,” said Al Aufi, who was appointed minister by Sultan of Oman Haitham Bin Tarik in June 2022.

Source: https://www.al-monitor.com/originals/2023/01/oman-banking-hydrogen-renewables-diversified-energy-strategy

"I give special thanks to the Emir of Qatar, Sheikh Tamim bin Hamad, and to the Sultan of Oman, Haitham bin Tariq, both of whom helped facilitate this agreement over many months of difficult and principled American diplomacy," he said.

Source: https://abcnews.go.com/Politics/5-detained-americans-freed-iran-us-official-confirms/story?id=103159837

“I give special thanks to the Emir of Qatar, Sheikh Tamim bin Hamad, and to the Sultan of Oman, Haitham bin Tariq, both of whom helped facilitate this agreement over many months of difficult and principled American diplomacy,” he said.

Source: https://1310kfka.com/abc-news/world/09/five-americans-freed-from-iran-arrive-in-qatar/