- About BankMuscat Corporate Banking Investment Banking Retail Banking NRI Services Card Services Treasury Bank Muscat Bonds BankMuscat Convertibles Forex Rates Weekly Update Site Map Customer Feedback This week's Al- Mazyona Big Gift winner is Mohd bin Hamdan Al-Hajri As the largest bank in the Sultanate of Oman with assets in excess of RO 1.3Bn ( US$ 3.48Bn), and a commanding network of 90 ...www.bankmuscat.com