(3) No tax shall be levied on or in respect of fees or expense allowances received by persons acting as conciliators, or arbitrators, or members of a Committee appointed pursuant to paragraph (3) of Article 52, in proceedings under this Convention, if the sole jurisdictional basis for such tax is the location of the Centre or the place where such proceedings are conducted or the place where such fees or allowances are paid.
CHAPTER II
Jurisdiction of the Centre
Article 25
(1) The jurisdiction of the Centre shall extend to any legal dispute arising directly out of an investment, between a Contracting State (or any constituent subdivision or agency of a Contracting State designated to the Centre by that State) and a national of another Contracting State, which the parties to the dispute consent in writing to submit to the Centre. When the parties have given their consent, no party may withdraw its consent unilaterally.
(2) "National of another Contracting State" means:
(a) any natural person who had the nationality of a Contracting State other than the State party to the dispute on the date on which the parties consented to submit such dispute to conciliation or arbitration as well as on the date on which the request was registered pursuant to paragraph (3) Article 28 or paragraph (3) of Article 36, but does not include any person who on either date also had the nationality of the Contracting State party to the dispute; and
(b) any juridical person which had the nationality of a Contracting State other than the State party to the dispute on the date on which the parties consented to submit such dispute to conciliation or arbitration and any juridical person which had the nationality of the Contracting State party to the dispute on that date and which, because of foreign control, the parties have agreed should be treated as a national of another Contracting State for the purposes of this Convention.
(3) Consent by a constituent subdivision or agency of a Contracting State shall require the approval of that State unless that State notifies the Centre that no such approval is required.