In matters of international arbitration, the judge supporting the arbitral proceedings shall, unless otherwise provided, be the president of the Paris judicial court where:
1° The arbitration takes place in France; or
2° The parties have agreed to submit the arbitration to French procedural law; or
3° The parties have expressly given jurisdiction to the French state courts to hear disputes relating to the arbitral proceedings; or
4° One of the parties is exposed to a risk of denial of justice.