International commercial arbitration: sole proprietorships qualify when a party has a foreign nexus, triggering arbitration rules.
A sole proprietorship is equated with its proprietor and, when a party has a foreign nexus-foreign national status, habitual residence abroad, foreign incorporation, or foreign government involvement-the dispute qualifies as international commercial arbitration, even if that party operates through a local office; statutory procedures govern appointment of arbitrators and extraordinary discretionary relief cannot bypass those appointment mechanisms.