1. For the purposes of this Convention, the term "permanent establishment" means a fixed place of business through which the business of an enterprise is wholly or partly carried on.
2. The term "permanent establishment" includes especially:
- a place of management;
- a branch;
- an office;
- a factory;
- a workshop, and
- a mine, an oil or gas well, a quarry or any other place of extraction of natural resources.
3. A building site or construction or installation project constitutes a permanent establishment only if it lasts more than twelve months.
4. Notwithstanding the preceding provisions of this Article, the term "permanent establishment" shall be deemed not to include:
- the use of facilities solely for the purpose of storage, display or delivery of goods or merchandise belonging to the enterprise;
- the maintenance of a stock of goods or merchandise belonging to the enterprise solely for the purpose of storage, display or delivery;
- the maintenance of a stock of goods or merchandise belonging to the enterprise solely for the purpose of processing by another enterprise;
- the maintenance of a fixed place of business solely for the purpose of purchasing goods or merchandise or of collecting information, for the enterprise;
- the maintenance of a fixed place of business solely for the purpose of carrying on, for the enterprise, any other activity of a preparatory or auxiliary character;
- the maintenance of a fixed place of business solely for any combination of activities mentioned in sub-paragraphs a) to e), provided that the overall activity of the fixed place of business resulting from this combination is of a preparatory or auxiliary character.
5. Notwithstanding the provisions of paragraphs 1 and 2, where a person — other than an agent of an independent status to whom paragraph 6 applies — is acting on behalf of an enterprise and has, and habili- tually exercises, in a Contracting State an authority to conclude contracts in the name of the enterprise, that enterprise shall be deemed to have a permanent establishment in that State in respect of any activities which that person undertakes for the enterprise, unless the activities of such person are limited to those mentioned in paragraph 4 which, if exercised through a fixed place of business, would not make this fixed place of business a permanent establishment under the provisions of that paragraph.
6. An enterprise shall not be deemed to have a permanent establishment in a Contracting State merely because it carries on business in that State through a broker, general commission agent or any other agent of an independent status, provided that such persons are acting in the ordinary course of their business.
7. The fact that a company which is a resident of a Contracting State controls or is controlled by a company which is a resident of the other Contracting State, or which carries on business in that other State (whether through a permanent establishment or otherwise), shall not of itself constitute either company a permanent establishment of the other.
IV. Ad Articles 5, 6, 7, 13 and 24
It is understood that exploration and exploitation rights of natural resources shall be regarded as immovable property situated in the Contracting State the sea bed and sub-soil of which they are related to, and that these rights shall be deemed to pertain to the property of a permanent establishment in that State. Furthermore, it is understood that the aforementioned rights include rights to interests in, or to the benefits of, assets to be produced by such exploration or exploitation.