(1) The profits of an enterprise of a Contracting State shall be taxable only in that Contracting State unless the enterprise carries on business in the other Contracting State through a permanent establishment situated therein. If the enterprise carries on business as aforesaid, the profits of the enterprise may be taxed in the other Contracting State but only so much of them as is attributable to that permanent establishment.
(2) Subject to the provisions of paragraph 3, where an enterprise of a Contracting State carries on business in the other Contracting State through a permanent establishment situated therein, there shall in each Contracting State be attributed to that permanent establishment the profits which it might be expected to make if it were a distinct and separate enterprise engaged in the same or similar activities under the same or similar conditions and dealing wholly independently with the enterprise of which it is a permanent establishment.
(3) In determining the profits of a permanent establishment, there shall be allowed as deductions expenses which are incurred for the purposes of the permanent establishment, including executive and general administrative expenses so incurred, whether in the Contracting State in which the permanent establishment is situated or elsewhere.
(4) If the information available to the competent authority is inadequate to determine the profits to be attributed to the permanent establishment of an enterprise, nothing in this Article shall affect the application of any law of that Contracting State relating to the determination of the tax liability of a person by the making of an estimate by the competent authority, provided that the law shall be applied, so far as the information available to the competent authority permits, in accordance with the principles of this Article.
(5) Insofar as it has been customary in a Contracting State to determine the profits to be attributed to a permanent establishment on the basis of an apportionment of the total profits of the enterprise to its various parts, nothing in paragraph 2 shall preclude that Contracting State from determining the profits to be taxed by such an apportionment as may be customary. The method of apportionment adopted shall, however, be such that the result shall be in accordance with the principles contained in this Article.
(6) No profits shall be attributed to a permanent establishment by reason of the mere purchase by that permanent establishment of goods or merchandise for the enterprise.
(7) For the purposes of the preceding paragraphs, the profits to be attributed to the permanent establishment shall be determined by the same method year by year unless there is good and sufficient reason to the contrary.
(8) Where profits include items of income which are dealt with separately in other Articles of this Agreement, then the provisions of those Articles shall not be affected by the provisions of this Article.