Categories Ministerial Decision Council of Ministers: Announcement regarding the Extension of the Period of Exemption from the Application of Profit Tax on Commercial and Industrial Establishments Wholly Owned by Omani Nationals Post author By admin Post date May 26, 1991 Arabic Auto Translate Published in Official Gazette 456 issued on 1 June 1991. Tags Council of Ministers ← Office of Deputy Prime Minister for Finance and Economic Affairs: Ministerial Decision 14/91 regading the Subordination of the Tax Directorate → Ministry of Housing: Ministerial Decision 50/91 regarding the Regulation of the Housing Loans for Low-Income Individuals