((2))The arbitral tribunal shall issue an order for the termination of the arbitral proceedings when:
(a)the claimant withdraws his claim, unless the respondent objects thereto and the arbitral tribunal recognises a legitimate interest on his part in obtaining a final settlement of the dispute;
(b)the parties agree on the termination of the proceedings;
(c)the arbitral tribunal finds that the continuation of the proceedings has for any other reason become unnecessary or impossible.