(a) That the award has been annulled in the country in which it was made;
(b) That the party against whom it is sought to use the award was not given notice of the arbitration proceedings in sufficient time to enable him to present his case; or that, being under a legal incapacity, he was not properly represented;
(c) That the award does not deal with the differences contemplated by or falling within the terms of the submission to arbitration or that it contains decisions on matters beyond the scope of the submission to arbitration.
If the award has not covered all the questions submitted to the arbitral tribunal, the competent authority of the country where recognition or enforcement of the award is sought can, if it think fit, postpone such recognition or enforcement or grant it subject to such guarantee as that authority may decide.
Article 3
If the party against whom the award has been made proves that, under the law governing the arbitration procedure, there is a ground, other than the grounds referred to in Article 1 (a) and (c), and Article 2 (b) and (c), entitling him to contest the validity of the award in a Court of Law, the Court may, if it thinks fit, either refuse recognition or enforcement of the award or adjourn the consideration thereof, giving such party a reasonable time within which to have the award annulled by the competent tribunal.
Article 4
The party relying upon an award or claiming its enforcement must supply, in particular:
(1) The original award or a copy thereof duly authenticated, according to the requirements of the law of the country in which it was made;
(2) Documentary or other evidence to prove that the award has become final, in the sense defined in Article 1 (d), in the country in which it was made;
(3) When necessary, documentary or other evidence to prove that the conditions laid down in Article 1, paragraph 1 and paragraph 2 (a) and (c), have been fulfilled.
A translation of the award and of the other documents mentioned in the Article into the official language of the country where the award is sought to be relied upon may be demanded. Such translation must be certified correct by a diplomatic or consular agent of the country to which the party who seeks to rely upon the award belongs or by a sworn translator of the country where the award is sought to be relied upon.