1. Each of the Contracting States recognises the validity of an agreement whether relating to existing or future differences between parties subject respectively to the jurisdiction of different Contracting States by which the parties to a contract agree to submit to arbitration all or any differences that may arise in connection with such contract relating to commercial matters or to any other matter capable of settlement by arbitration, whether or not the arbitration is to take place in a country to whose jurisdiction none of the parties is subject.

Each Contracting State reserves the right to limit the obligation mentioned above to contracts which are considered as commercial under its national law. Any Contracting State which avails itself of this right will notify the Secretary-General of the League of Nations, in order that the other Contracting States may be so informed.

2. The arbitral procedure, including the constitution of the arbitral tribunal, shall be governed by the will of the parties and by the law of the country in whose territory the arbitration takes place.

The Contracting States agree to facilitate all steps in the procedure which require to be taken in their own territories, in accordance with the provisions of their law governing arbitral procedure applicable to existing differences.

3. Each Contracting State undertakes to ensure the execution by its authorities and in accordance with the provisions of its national laws of arbitral awards made in its own territory under the preceding articles.