A party challenging an arbitral award for breach of natural justice must establish the rule of natural justice that was breached, how it was breached, whether there was a causal link between the breach and the making of the arbitral award, and how the breached prejudiced its rights: Soh Beng Tee & Co Pte Ltd v Fairmount Development Pte Ltd [2003] 3 SLR(R) 86 at [29], AKN v ALC [2015] 3 SLR 488 at [48] and ASG v ASH [2016] 5 SLR 54 at [53]. From its submissions, the plaintiff appeared to be relying on the Arbitrator’s failure to consider an issue pleaded by the plaintiff, ie, the defendant’s representations and its impact on the plaintiff’s obligations under the DSA. The threshold for setting aside an arbitral award for breach of natural justice on the ground that the arbitrator had failed to consider an important pleaded issue is high. Such a conclusion can usually only be reached by inference, and such an inference is only drawn if it is “clear and virtually inescapable”: see AKN v ALC at [46]. The plaintiff had to specifically show that the Arbitrator did not apply her mind at all to that particular submission; it would not be enough that she had rejected it, “whether implicitly or otherwise, whether rightly or wrongly, and whether or not as a result of its failure to comprehend the argument and so to appreciate its merits” (AKN v ALC at [47], followed in ASG v ASH at [62]).