The SIAC Rules 2025 (7th Edition), effective 1 January 2025, introduce significant procedural changes. This article explains what’s new, how the key mechanisms work, and what practitioners need to know.
1. What’s New in the 7th Edition
The 7th Edition introduces five main changes:
- Streamlined Procedure (Rule 13) – A new fast-track procedure for lower-value disputes, with awards due within 3 months
- Preliminary Determination (Rule 46) – Formal mechanism to resolve threshold issues early
- Coordinated Proceedings (Rule 17) – Allows related arbitrations to be managed together without full consolidation
- Emergency Arbitrator enhancements (Schedule 1) – Faster appointment and broader relief
- Expedited Procedure updates (Rule 12) – Higher threshold and refined procedures
2. Streamlined Procedure (Rule 13)
The Streamlined Procedure is the most significant addition. It applies automatically to disputes where the aggregate amount does not exceed S$1 million, unless parties opt out or the Registrar determines it inappropriate.
Key features under Schedule 2:
- Sole arbitrator by default (three-member tribunal only in exceptional circumstances)
- Limited written submissions in length and number
- Restricted document production – only documents parties rely on, plus narrow categories shown to be material
- Documents-only default – hearings held only if the tribunal considers them necessary
- 3-month award deadline from tribunal constitution
The Streamlined Procedure shifts the default toward proportionality. Parties wanting more elaborate procedures must justify the need.
For a detailed analysis of this procedure, see our article on the SIAC Streamlined Procedure.
3. Preliminary Determination (Rule 46)
Rule 46 creates a formal mechanism for early resolution of discrete issues—whether jurisdictional, admissibility-related, or substantive. This can dispose of claims entirely or narrow the issues for full hearing.
To succeed, the applicant must show:
- The issue is suitable for early resolution
- Determination would materially advance the proceedings
The tribunal considers whether the issue is predominantly legal (rather than factual), whether it requires extensive evidence, and whether resolution would meaningfully affect the proceeding’s scope.
For a detailed comparison with early dismissal, see our article on SIAC Preliminary Determination vs Early Dismissal.
4. Coordinated Proceedings (Rule 17)
Rule 17 addresses situations where related disputes arise under multiple contracts or involve overlapping parties, but full consolidation isn’t possible or desirable.
Coordinated proceedings allow tribunals in separate arbitrations to:
- Hold concurrent hearings
- Share procedural timetables
- Issue consistent procedural orders
This is useful where arbitration agreements differ in material respects (different seats, different governing laws) or where confidentiality concerns prevent merging proceedings entirely. Rule 17 offers a middle path – efficiency gains while respecting the distinct nature of separate arbitration agreements.
For a detailed analysis, see our article on SIAC Coordinated Proceedings.
5. Emergency Arbitrator Enhancements (Schedule 1)
Schedule 1 refines the emergency arbitrator mechanism with two key changes:
- Faster appointment – reduced timeframe for appointing emergency arbitrators
- Broader relief – emergency arbitrators may now order any interim relief the tribunal could grant, expanding authority beyond previous versions
The emergency arbitrator must issue a decision within 14 days of appointment.
SIAC’s 2025 statistics show 95% of applications were accepted (18 of 19 in 2025; 191 of 192 since 2010).
6. Expedited Procedure Updates (Rule 12)
Rule 12 updates the expedited procedure:
- Higher threshold – automatic application for disputes up to S$6 million (or by application regardless of amount)
- Sole arbitrator – mandatory
- Compressed procedure – truncated submission timeframes, limited document production
- 6-month award deadline from tribunal constitution
In 2025, SIAC received 130 expedited procedure applications, with 55 accepted (42% acceptance rate).
Comparing the Procedures:
| Procedure | Threshold | Arbitrator(s) | Key Features | Award Deadline |
| Streamlined Procedure (Rule 13) | Up to S$1 million (automatic) | Sole arbitrator (default) | Limited submissions, restricted document production, documents-only default | 3 months from constitution |
| Expedited Procedure (Rule 12) | Up to S$6 million (automatic) or by application | Sole arbitrator (mandatory) | Accelerated timeline, compressed procedure | 6 months from constitution |
| Emergency Arbitrator (Schedule 1) | No threshold | Single emergency arbitrator | Pre-constitution relief | 14 days from appointment |
7. Typical SIAC Arbitration Sequence
A typical SIAC arbitration follows this sequence:
- Commencement – Claimant files Notice of Arbitration with SIAC, including registration fee. Under Rule 3, arbitration commences when SIAC receives a complete Notice.
- Response – Respondent files Response to Notice of Arbitration within 14 days, addressing claims and any counterclaims.
- Constitution – Tribunal appointed (sole arbitrator or three-member panel). Where parties cannot agree, SIAC’s President appoints from the institution’s panels.
- Preliminary conference – Tribunal establishes procedural timetable and issues Procedural Order No. 1.
- Written submissions – Exchange of Statement of Claim, Statement of Defence, Reply, Rejoinder, witness statements, expert reports, and documentary evidence.
- Document production – If applicable, requests, objections, and tribunal orders.
- Hearing – Oral testimony, cross-examination, and argument (if held).
- Post-hearing – Post-hearing briefs and cost submissions.
- Award – Tribunal deliberates and drafts award. SIAC’s Registrar scrutinises the draft before issuance (quality control for formal deficiencies).
| Stage | Key Documents/Events | Typical Timeline |
| Commencement | Notice of Arbitration, registration fee | Day 1 |
| Response | Response to Notice of Arbitration | 14 days from Notice |
| Constitution | Arbitrator appointment(s), acceptance, disclosure | 30-60 days |
| Preliminary conference | Procedural Order No. 1, terms of reference | Within 21 days of constitution |
| Written submissions | Statement of Claim, Statement of Defence, Reply, Rejoinder | Per procedural timetable |
| Document production | Requests, objections, tribunal orders | If applicable |
| Witness evidence | Witness statements, expert reports | Per procedural timetable |
| Hearing | Oral testimony, cross-examination, oral argument | Varies by complexity |
| Post-hearing | Post-hearing briefs, cost submissions | 21-45 days after hearing |
| Award | Scrutiny, issuance | Per procedural timetable |
8. Drafting SIAC Arbitration Clauses
SIAC provides a model clause that parties are encouraged to adopt:
“Any dispute arising out of or in connection with this contract, including any question regarding its existence, validity or termination, shall be referred to and finally resolved by arbitration seated in Singapore in accordance with the Arbitration Rules of the Singapore International Arbitration Centre for the time being in force, which rules are deemed to be incorporated by reference in this clause.”
Beyond the model clause, consider specifying:
- Number of arbitrators – avoids disputes at the constitution stage
- Seat of arbitration – establishes the legal framework and supervisory courts
- Language of proceedings – avoids translation costs
- Governing law – of the contract (separate from procedural law)
For multi-contract transactions, include provisions addressing consolidation to avoid difficulties from inconsistent arbitration agreements across related documents.
Drafters should be cautious when departing from standard formulations.
In Insigma Technology Co Ltd v Alstom Technology Ltd [2009] SGCA 24, the Court of Appeal salvaged a “pathological” clause that specified ICC Rules but SIAC administration, demonstrating Singapore’s pro-arbitration approach. But poorly drafted clauses still generate satellite disputes that increase costs for all parties.
9. Which Rules Version Applies
The transitional provisions in Article 1 are important:
- Disputes arising from arbitration agreements concluded on or after 1 January 2025 are governed by the SIAC Rules 7th Edition
- Disputes arising from agreements concluded before 1 January 2025 remain governed by the SIAC Rules 6th Edition, unless parties agree otherwise
In DMZ v DNA [2025] SGHC 31, the Singapore High Court addressed when arbitration “commences” under the SIAC Rules 2016 – the date SIAC receives a complete Notice of Arbitration. This affects limitation periods and which rules version applies. Practitioners should verify which version governs before filing.
Conclusion
The SIAC Rules 2025 introduce meaningful procedural options:
- Streamlined Procedure for proportionate resolution of lower-value disputes (3-month awards)
- Preliminary Determination for early resolution of threshold issues
- Coordinated Proceedings for managing related disputes without full consolidation
- Enhanced Emergency Arbitrator with broader relief and faster appointment
- Updated Expedited Procedure with higher thresholds