Article 27 - Experts

1. The arbitral tribunal may appoint one or more experts to report to it, in writing, on specific issues to be determined by the tribunal. A copy of the expert's terms of reference, established by the arbitral tribunal, shall be communicated to the parties.

2. The parties shall give the expert any relevant information or produce for inspection any relevant documents or goods that he may require of them. Any dispute between a party and such expert as to the relevance of the required information or production shall be referred to the arbitral tribunal for decision.

3. Upon receipt of the expert's report, the tribunal shall communicate a copy of the report to the parties who shall be given the opportunity to express, in writing, their opinion of the report. A party shall be entitled to examine any document on which the expert has relied in his report.

4. At the request of either party the expert, after delivery of the report, may be heard at a hearing where the parties hall have the opportunity to be present and to interrogate the expert. At this hearing either party may present expert witnesses in order to testify on the points at issue. The provisions of article 25 shall be applicable to such proceedings.