Jurisdiction(s):
United Kingdom

Singapore CA: arbitral institution procedural determinations not reviewable under Model Law Article 5 (SIAC Registrar’s commencement date) — DMZ v DNA

Published on: 18 December 2025

Published by a LexisNexis Arbitration expert

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Article summary

DMZ v DNA [2025] SGCA 52

What are the practical implications of this case?

This judgment clarifies what “matters” means in Article 5 of the Model Law, which is incorporated into Singapore law by section 3 of the International Arbitration Act 1994 (IAA). Article 5 provides: “In matters governed by the Model Law, no court shall intervene except where so provided in the Model Law.” The effect is that Singapore courts lack authority, under Article 5, to intrude upon procedural decisions of an arbitral institution that do not impede the progress or conduct of an arbitration. Although a registrar (or equivalent position) of an arbitral institution is not a member of the tribunal tasked with resolving the parties’ substantive dispute, that point concerns only the consequence of the procedural step. Where parties have adopted institutional rules in their arbitration agreement, and those rules allocate specified decisions to a designated decision-maker, that allocation is part of the parties’ bargain about the conduct of the arbitration and forms a stage of the process that lies outside judicial interference. Accordingly, judicial involvement arises only where the Model Law expressly so provides. Courts cannot supervise such procedural steps.

What was the background?...

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