[40] Article 13 of the rules of arbitration of the International Chamber of Commerce, whose jurisdiction the appellant invoked, required the arbitrator to draw up terms of reference and required the arbitrator and the parties to sign the terms of reference. It contained no requirement that the terms of reference be formulated as an agreement between the parties. It is therefore possible to imagine a case where a party signs terms of reference not as indicating an agreement to anything, but simply in compliance with the rules and in furtherance of the arbitration. However that is not this case. Here, the terms of reference recorded, immediately above the signature of the appellant's solicitor, that they "were agreed and signed in Auckland, New Zealand on the 13th day of September 1996." Doubtless this was the reason for the appellant's concession in the course of argument that the terms constituted an agreement. By them, the parties agreed that the arbitrator was to resolve all issues of fact and law that should arise, including the particular issues listed in cl 15 of the terms. Those particular issues included, "What decision should be taken with regard to the costs of arbitration?" (cl 15.21 and cl 15.47).