Article 17

1. Subject to an agreement by the parties, the arbitral tribunal shall, promptly after its appointment, determine the language or languages to be used in the proceedings. This determi-nation shall apply to the statement of claim, the statement of defense, and any further written statements and, if oral hearings take place, to the language or languages to be used in such hearings.

2. The arbitral tribunal may order that any documents annexed to the statement of claim or statement of defense, and any supplementary documents or exhibits submitted in the course of the proceedings, delivered in their original language, shall be accompanied by a translation into the language or languages agreed upon by the parties or determined by the arbitral tribunal.

Statement of Claim

Article 18

1. Unless the statement of claim was contained in the notice of arbitration, within a period of time to be determined by the arbitral tribunal, the claimant shall communicate his statement of claim in writing to the respondent and to each of the arbitrators. A copy of the contract, and of the arbitration agreement if not contained in the contract, shall be annexed thereto.