The High Court of Hong Kong has ruled that a party seeking a stay of proceedings in favour of arbitration must demonstrate at least a prima facie case that an arbitration agreement exists. This was in the case of Haller v Vestey International and CMC (overturned on other grounds on appeal), where the Plaintiff had argued that the tripartite agreement was a forgery. If a party cannot demonstrate this, the court may refuse to grant a stay and resolve the issue itself.
