Cap. 7:15 ARBITRATION ACT Act 6/1996 ARTICLE 13 Challenge procedure (1) The parties are free to agree on a procedure for challenging an arbitrator, subject to the provisions of paragraph (3) of this article. (2) Failing such agreement, a party who intends to challenge an arbitrator shall, within fifteen days after becoming aware of the constitution of the arbitral tribunal or after becoming aware of any circumstance referred to in article 12 (2), send a written statement of the reasons for the challenge to the arbitral tribunal. Unless the challenged arbitrator withdraws from his office or the other party agrees to the challenge, the arbitral tribunal shall decide on the challenge. (3) If a challenge under any procedure agreed upon by the parties or under the procedure of paragraph (2) of this article is not successful, the challenging party may request, within thirty days after having received notice of the decision rejecting the challenge, the High Court to decide on the challenge, which decision shall be subject to no appeal; while such a request is pending, the arbitral tribunal, including the challenged arbitrator, may continue the arbitral proceedings and make an award. ARTICLE 14 Failure or impossibility to act (1) If an arbitrator becomes de jure or de facto unable to perform the functions of his office or for other reasons fails to act without undue delay, his mandate terminates if he withdraws from his office or if the parties agree on the termination. Otherwise, if a controversy remains concerning any of these grounds, any party may request the High Court to decide on the termination of the mandate, which decision shall be subject to no appeal. (2) If, under this article or article 13 (2), an arbitrator withdraws from his office or a party agrees to the termination of the mandate of an arbitrator, this does not imply acceptance of the validity of any ground referred to in this article or article 12 (2). ARTICLE 15 Appointment of substitute arbitrator (1) Where the mandate of an arbitrator terminates under article 13 or 14 or because of his withdrawal from office for any other reason or because of the revocation of his mandate by agreement of the parties or in any other case of termination of his mandate, a substitute arbitrator shall be appointed according to the rules that were applicable to the appointment of the arbitrator being replaced. (2) Unless otherwise agreed by the parties— (a) where the sole or the presiding arbitrator is replaced, any hearings previously held shall be repeated; and (b) where an arbitrator, other than a sole or a presiding arbitrator is replaced, any hearings previously held may be repeated at the discretion of the arbitral tribunal. (3) Unless otherwise agreed by the parties, an order or ruling of the arbitral tribunal made prior to the replacement of an arbitrator under this article is not invalid solely because there has been a change in the composition of the arbitral tribunal. -9-