6. In instances stipulated by Paragraphs 1 through 4 of this Article the diminution of the arbitration fee shall be reflected in the award or in the ruling terminating the proceedings. Where the proceedings are terminated before the formation of the arbitral tribunal the decision to diminish the arbitration fee shall be made by the Chairman of the Arbitration court.
7. The provisions of Paragraphs 1 through 4 of this Article concerning diminution of the arbitration fee shall not apply to the registration fee (Article 2 of the present Rules).
Article 5.ARBITRATION FEE IN RESPECT OF COUNTERCLAIM OR CLAIM FOR SET-OFF
The rules as to the arbitration fee relating to the principal claim shall also apply to a counterclaim and a claim for set-off.
Article 6. APPORTIONMENT OF ARBITRATION FEE AMONG THE PARTIES
1. Unless otherwise agreed by the parties, the arbitration fee shall be borne by the losing party.
2. Where the claim is satisfied partially, the arbitration fee shall be borne by the respondent in proportion to the satisfied amount of the claim and by the claimant in proportion to the dismissed part of the claim.
Article 7. COVERING ADDITIONAL COSTS
1. The Arbitration court may demand from the parties or either of them that an advance sum be deposited to cover additional costs of the Arbitration court in connection with the conduct of the arbitral proceedings.
2. An advance sum to cover additional costs may, in particular, be demanded by the Arbitration court from the party requesting that an act that may cause additional costs should be carried in the conduct of the proceedings if the request is considered justified. The Arbitration court may gear the doing of such acts to payment by that party of the advance sum to cover additional costs within the specified period.