Article 21 - Representation of and Assistance for Parties

Article 22 - Place of Arbitration

Article 23 - Procedure in General

Article 24 - Exchange of Memorials

Article 25 - Counterclaim

Article 26 - Hearing

Article 27 - Evidence in General

Article 28 - Production of Documents

Article 29 - Witnesses

Article 30 - Experts (Party-Appointed)

Article 31 - Experts (Tribunal-Appointed)

Article 32 - Site Inspection