(1) Unless otherwise agreed by the parties, the arbitral tribunal is to decide, in its arbitral award, on the share of the costs of the arbitral proceedings that each of the parties is to bear, including the costs incurred by the parties that were necessary to properly pursue their claim or defence. In this context, the arbitral tribunal will decide at its discretion while taking account of the circumstances of the individual case, in particular the outcome of the proceedings.
(2) Insofar as the costs of the arbitral proceedings are fixed, the arbitral tribunal is to also decide on the amount to be borne by each party. If the costs have not been determined, or should it be possible to determine them only after termination of the arbitral proceedings, the arbitral tribunal will rule on the matter by separate award.