Shipping and Air Transport
(1) Profits derived by an enterprise of a Contracting State from the operation of ships or aircraft in international traffic shall be taxable in that State.
(2) Notwithstanding the provisions of paragraph (1), income of an enterprise of one of the Contracting State derived from the other Contracting State, from the operation of ships in international traffic may be taxed in that other Contracting State, but the tax chargeable in that other Contracting State on such income shall be reduced by an amount equal to 50 percent of such tax.
(3) Profits derived by a transportation enterprise which is a resident of a Contracting State from the use, maintenance, or rental of containers (including trailers and other equipment for the transport of containers) used for the transport of goods or merchandise in international traffic which is supplementary or incidental to its international operations of ships or aircraft shall be taxable only in that Contracting State unless the containers are used solely within the other Contracting State.
(4) For the purposes of this Article interest on investments directly connected with the operation of ships or aircraft in international traffic shall be regarded as profits derived from the operation of such ships or aircraft if they are integral to the carrying on of such business, and the provisions of Article 11 shall not apply in relation to such interest.
(5) The provisions of paragraph (1) shall also apply to profits from the participation in a pool, a joint business or an international operating agency.