YEREVAN, JANUARY 13, ARMENPRESS. The delegation headed by the Representative of the Republic of Armenia on International Legal Matters has participated in a procedural meeting at the Permanent Court of Arbitration in the Hague in the framework of the arbitration proceedings initiated by Azerbaijan on 27 February 2023 under the Energy Charter Treaty (ECT), the Office of the Representative of the Republic of Armenia on International Legal Matters said in a statement.