591. Refusal of recognition or enforcement of New York Convention awards.

Recognition or enforcement of a New York Convention award1 must not be refused except2:

(1)     if the person against whom it is invoked proves3:

(a)     that a party to the arbitration agreement4 was, under the law applicable to him, under some incapacity5;

(b)     that the arbitration agreement was not valid under the law to which the parties subjected it or, failing any indication thereon, under the law of the country where the award was made6;

(c)     that he was not given proper notice of the appointment of the arbitrator or of the arbitration proceedings or was otherwise unable to present his case7;

(d)     that