The arbitral tribunal shall decide whether to hold oral hearings for the presentation of evidence or for oral argument, or whether the proceedings shall be conducted on the basis of documents and other materials.

2.         Notwithstanding that the arbitral tribunal has decided to conduct the proceedings on the basis of documents and other materials, the arbitral tribunal shall hold oral hearings at an appropriate stage of the proceedings, if so requested by a party.

3.      The parties shall be given sufficient advance notice of

a. any meeting of the arbitral tribunal for the purpose of inspection of documents, goods or other property; and

b. any hearing of the arbitral tribunal.

4.             If a party is giving evidence through witnesses, the party shall, within a period of time the arbitral tribunal determines, communicate to the tribunal and to the other party

a. the names and addresses of the witnesses it intends to present; and

b. the subject upon which, and the language in which, those witnesses will give their testimony.