The moving defendants sought leave to appeal to the Divisional Court from a certification order in a class proceeding alleging a price‑fixing conspiracy in the market for polyether polyol products.
The motion argued that the pleadings were deficient, that the motions judge failed to review evidence supporting the proposed common issues, and that the plaintiff’s economist lacked the required expertise.
The court held that certification judges are entitled to deference and that the certification stage requires only some basis in fact that certification criteria are met, not proof of the underlying conspiracy.
Reading the certification reasons contextually, the court concluded that the motions judge had considered the applicable principles and that there was no serious doubt as to the correctness of the order.
The moving defendants therefore failed to satisfy the leave test under Rule 62.02(4).