Article 1
Taxes Covered
The taxes which are the subject of this Agreement are:
In the Sultanate of Oman: -
the Company Income Tax;
the Profit Tax on Commercial and Industrial establishments;
(hereinafter referred to as "Omani tax"),
In the Islamic Republic of Iran, income taxes subject to the Direct Taxes Law, ratified in the year 1366 (Iranian Calendar);
(hereinafter referred to as "Iranian Tax").
This Agreement shall also apply to any identical or substantially similar taxes which are imposed by either Contracting State after the date of signature of this Agreement in addition to, or in place of, the taxes referred to in paragraph (1) of this Article.
Each Contracting State shall immediately inform the other Contracting State of any substantial changes which have been made in its respective taxation laws which affect this Agreement.