TRW & Co · Trade, Regulation & ESG
Merger Control in Singapore
Merger control in Singapore is voluntary, but CCS can review any merger that may substantially lessen competition, including after completion. Revised procedure guidelines in force since 1 May 2026 shorten review timelines for simple deals. This guide covers the thresholds, the decision to notify, the Phase 1 and Phase 2 process, fees and the mistakes that delay closings.
Key pointThere is no duty to file, but CCS can investigate a completed merger and order it unwound, so the real decision is who bears that post-closing risk and whether a clearance condition is worth the time.
At a glance
Voluntary but enforceable
Section 54 of the Competition Act 2004 prohibits mergers that substantially lessen competition; filing is voluntary, but CCS can investigate non-notified deals.
Indicative share screens
CCS is unlikely to intervene below a 40 per cent share, or 20 to 40 per cent where the top three firms hold under 70 per cent.
Faster Phase 1
From 1 May 2026, simple mergers can use a 25 working day streamlined Phase 1, and Phase 2 targets 100 working days.
Fees scale with target
Application fees range from S$5,000 for SME mergers to S$100,000 where the target's turnover exceeds S$600 million.
Confidential advice route
For anticipated deals not yet public, CCS can give confidential advice, because formal notification involves publishing the deal and consulting third parties.
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What merger control in Singapore covers
Merger control in Singapore is the review of acquisitions, asset purchases and joint ventures under section 54 of the Competition Act 2004, which prohibits mergers that have resulted, or may be expected to result, in a substantial lessening of competition (SLC) in any market in Singapore. The regulator is the Competition and Consumer Commission of Singapore, known since September 2025 as CCS.
Singapore's regime is voluntary. There is no mandatory filing and no statutory bar on closing before clearance. That flexibility is attractive, but it is not the same as low risk. CCS monitors deal announcements, receives complaints from customers and rivals, and can investigate a merger that was never notified, including after completion, and direct that it be unwound or modified.
The legal question therefore arises at term-sheet stage, not at signing. A buyer needs to know whether the deal could raise an SLC concern, whether to notify, how filing affects the timetable and conditions precedent, and how to allocate the risk of a CCS review between the parties.
What counts as a merger
The Competition Act defines a merger broadly. It covers two or more previously independent undertakings merging, the acquisition of direct or indirect control of all or part of another undertaking, the acquisition of assets (including goodwill) that results in the acquirer replacing or substantially replacing the seller in the business, and the creation of a joint venture that performs, on a lasting basis, all the functions of an autonomous economic entity.
Control means the ability to exercise decisive influence. Commentary on the CCS guidelines explains that ownership of more than 50 per cent of the voting rights is treated as conferring decisive influence, that holdings between 30 and 50 per cent carry a rebuttable presumption of decisive influence, and that control can also arise below those levels through veto rights over budgets, business plans or senior appointments. Minority investors with strategic vetoes should therefore not assume they are outside the regime.
Exclusions
Some mergers fall outside section 54, notably certain transactions approved under sector-specific regimes administered by other regulators. CCS lists these on its exclusions and exemptions page. Ancillary restrictions that are directly related and necessary to a merger, such as reasonable non-competes on a seller, are excluded from the section 34 and section 47 prohibitions. A deal in a regulated sector may still require approvals from the sector regulator even where CCS has no role.
The indicative thresholds and the substantive test
Because notification is voluntary, there are no mandatory filing thresholds. Instead CCS publishes indicative thresholds to help parties self-assess. On its merger notification overview, CCS states that it is generally unlikely to intervene unless the merged entity will have a market share of 40 per cent or more, or a share of between 20 and 40 per cent where the post-merger combined share of the three largest firms (CR3) is 70 per cent or more.
CCS guidance also indicates that it is unlikely to investigate a merger involving only small companies, where in the preceding financial year each party's turnover in Singapore was below S$5 million and the parties' combined worldwide turnover was below S$50 million. These numbers are screening tools, not safe harbours: CCS can look at a merger below them if there is evidence of an SLC, and a merger above them is not necessarily prohibited.
| Screen | Indicator | What it means in practice |
|---|---|---|
| Market share (high) | Merged entity has 40% or more | Self-assess carefully; notification usually worth considering |
| Market share with concentration | Merged entity has 20% to 40% and CR3 is 70% or more | Concentrated market; risk of coordinated effects |
| Small merger | Each party below S$5m Singapore turnover and combined worldwide below S$50m | CCS unlikely to investigate, absent strong evidence of harm |
| Below all screens | None of the above | Generally low risk, but document the self-assessment |
The substantive question is whether the merger will substantially lessen competition. CCS considers market definition, market shares and concentration, barriers to entry and expansion, countervailing buyer power, efficiencies that benefit customers, and whether the target is a failing firm. Our article on competition merger review explores how these factors play out in particular sectors.
In a voluntary regime, the real choice is not whether CCS has jurisdiction but who carries the risk of a review after completion.
Deciding whether to notify
Most of the strategic work in merger control in Singapore happens here. The decision turns on the strength of the self-assessment, the parties' appetite for post-closing risk and the deal timetable. There are four broad routes, and the right one may change as the deal develops.
No notification
Appropriate where the merger falls clearly below the indicative thresholds and there is no overlap or vertical link of concern. Keep a written self-assessment on file in case CCS later asks questions.
Pre-notification discussion
A confidential meeting with CCS before filing to agree what a complete Form M1 requires. CCS may indicate whether concerns seem likely, but that indication is not binding.
Confidential advice
For anticipated mergers that are not yet public and raise a genuine competition issue, CCS can give confidential advice on whether the merger is likely to infringe section 54, without third-party consultation.
Formal notification
An application for a CCS decision on an anticipated or completed merger. A favourable decision gives legal certainty, which buyers, lenders and boards often value above speed.
Formal notification of an anticipated merger cannot be kept confidential, because CCS seeks views from customers, competitors and suppliers. Parties that are not ready to go public should consider confidential advice or delay filing until announcement. Where notification is likely, it is usual to make CCS clearance a condition precedent and to agree in the sale agreement who controls the filing, who bears the fee and how remedies will be negotiated. Our M&A support team drafts these provisions.
Sellers should think about this too. A buyer that will not accept a clearance condition is asking the seller to take no risk, but if CCS later unwinds the deal the commercial fallout lands on both sides. Conversely, a seller in an auction may prefer the bidder whose deal raises no Singapore overlap at all. Building the analysis of merger control in Singapore into bid evaluation helps sellers compare offers on deliverability as well as price.
The 2026 changes to merger procedure
CCS revised its Guidelines on Merger Procedures, with consequential changes to its Guidelines on Directions and Remedies, with effect from 1 May 2026, after a public consultation that ran from 27 October to 17 November 2025. The current CCS guidelines should be used for any filing made now. The main changes reported by practitioners are:
- a streamlined Phase 1 track of 25 working days for mergers that clearly do not raise competition concerns, compared with the standard 30 working days;
- a cap on Phase 1 extensions of up to 20 additional working days, where previously extensions were permitted only in exceptional circumstances without a stated cap;
- a Phase 2 target of 100 working days, reduced from 120;
- a Phase 1 Issues Letter that sets out CCS's key concerns where it has reasonable grounds to suspect an SLC, giving parties earlier notice that commitments may be needed;
- a shorter maximum extension of the commitments evaluation timeline;
- a revised Form M1 with lighter information requirements, a template for a pre-filing courtesy call summary, and submission of only a confidential version with confidential material in square brackets, with a non-confidential version produced only if CCS asks for one.
For deal teams, the practical effect on merger control in Singapore is a shorter and more predictable path to clearance for straightforward deals, and earlier warning in difficult ones. Long-stop dates in sale agreements drafted before May 2026 may be more generous than now needed.
The notification process step by step
- Self-assessment. Define the relevant markets, gather market share data and identify horizontal overlaps and vertical links. Check whether the deal is excluded.
- Pre-notification discussion. Send CCS a written request with evidence of good-faith intent to proceed (or, for completed deals, public information), background, key milestones and a short market description. Submit a draft Form M1 at least five working days before the meeting, according to CCS guidance on discussing a merger.
- Formal filing. Submit the final Form M1 with supporting documents and pay the application fee. CCS publishes a summary and invites third-party comments.
- Phase 1 review. CCS assesses whether the merger raises concerns, on a streamlined or standard timetable, with limited extensions. It may issue a Phase 1 Issues Letter.
- Phase 2 review. If concerns remain, CCS conducts a detailed review, aiming to complete within 100 working days, often with requests for internal documents, data and economic analysis.
- Commitments. Parties may offer structural or behavioural commitments to address concerns, which CCS evaluates and may market-test.
- Decision. CCS issues a favourable decision, with or without commitments, or a proposed infringement decision. Decisions and accepted commitments are published.
A favourable decision on an anticipated merger may carry a validity period, and protection applies only if the merger is carried into effect within it, as the CCS merger assessment page explains. Where CCS proposes an infringement decision, the parties may apply to the Minister for an exemption on public interest grounds.
Fees, documents and evidence
CCS charges an application fee for a merger decision, scaled by the size of the target. The published fee schedule sets S$5,000 where all merger parties are SMEs (or where the acquirer is an SME that is not itself being acquired), S$15,000 where the target's turnover is S$200 million or less, S$50,000 where it is between S$200 million and S$600 million, and S$100,000 above S$600 million. CCS defines an SME as an entity with annual turnover of not more than S$100 million or not more than 200 employees.
The quality of the filing drives the timetable. Assemble early:
- transaction documents, including the term sheet or sale agreement and any non-compete or transitional arrangements;
- group structure charts and turnover data for the parties and the target;
- market share estimates with sources and methodology, for each plausible market definition;
- lists of top customers, suppliers and competitors with contact details;
- internal strategy papers, board materials and deal rationale documents, which CCS may request and which must be consistent with the filing;
- evidence on barriers to entry, recent entry and switching, and any efficiencies claimed.
Internal documents are often the decisive evidence in a merger review. A board paper describing the deal as a way to "remove our main competitor" or "restore pricing discipline" can undo a carefully argued market definition. Brief deal teams early on careful drafting and ensure the narrative in the filing matches the documents. Our note on information exchange also explains why gun-jumping style sharing of pricing data before completion carries its own section 34 risk.
Risks and common mistakes
Treating "voluntary" as "optional in practice"
The voluntary regime means there is no automatic penalty for not filing, but CCS can investigate completed mergers on its own initiative or on complaint. If it finds an SLC, it can direct the merger to be unwound or modified and may impose a financial penalty where the infringement was intentional or negligent. Unwinding an integrated business is far more costly than a filing. For deals that sit near the indicative thresholds, the cost of notification should be weighed against that tail risk, not against zero.
Getting market definition wrong
Parties often define markets broadly to dilute their shares, for example "logistics" rather than "cold-chain warehousing in Singapore". CCS will test the definition against customer views and internal documents. A self-assessment built on an unrealistic market definition gives false comfort. Prepare shares under several plausible definitions and identify the narrowest one CCS might adopt. Where data is poor, explain the methodology rather than presenting estimates as precise.
Overlooking minority stakes and joint ventures
A 25 per cent stake with veto rights over the business plan, budget or senior management can confer control. A joint venture that operates on a lasting basis as an autonomous business is a merger, even if neither parent holds a majority. Investors and corporate venturing teams sometimes miss this. Review the shareholder agreement rights, not only the percentage. Our joint ventures practice and our article on joint ventures and competition cover the analysis.
Integrating before clearance
Even in a voluntary regime, parties that notify should not act as if the deal has closed. Sharing customer-level pricing, coordinating bids or directing the target's commercial strategy before completion can infringe section 34 independently of section 54. Use clean teams for sensitive data, limit pre-closing covenants to what is needed to protect value, and document the protocols. If CCS later finds problems, these steps show good faith.
Ignoring Singapore in multi-jurisdictional deals
Global deals are often planned around mandatory filings in the EU, the US, China and elsewhere, with Singapore treated as an afterthought. Where both parties are active in Singapore, CCS may take an interest, and a concern raised late can delay closing. Include Singapore in the filing analysis from the start, align the timetable and remedies across authorities, and ensure that commitments offered elsewhere also work for the Singapore market.
The cross-border angle
Merger control in Singapore applies to foreign-to-foreign transactions where the merger may affect competition in a Singapore market. Many CCS filings involve global parties with Singapore subsidiaries or significant sales into Singapore. Equally, Singapore holding companies acquiring businesses abroad will need to consider merger control in those jurisdictions, some of which are mandatory and suspensory.
TRW & Co's network is relevant here. Bangladeshi groups using Singapore as a regional holding base, UK and Swiss acquirers of Asian targets, UAE investors in regional logistics and infrastructure, and Chinese strategic buyers each bring different home-country filing obligations. We coordinate the filing analysis across those jurisdictions and work alongside Singapore-qualified counsel where Singapore representation is required. Deals involving foreign ownership of sensitive businesses may also raise investment screening questions, discussed on our foreign investment page.
How TRW & Co helps with merger control in Singapore
We advise buyers, sellers, investors and their boards on the competition dimension of transactions, from the first screening to completion.
Early screening
We run a rapid overlap and vertical-link analysis at term-sheet stage, recommend whether to notify and set out the risk position in a short memo the board can rely on.
Deal documentation
We draft conditions precedent, long-stop dates, cooperation covenants, remedy obligations and fee allocation, working with our private equity and corporate colleagues.
Filing management
We prepare pre-notification requests and Form M1, gather market data, manage third-party enquiries and coordinate economists where needed.
Remedies and post-closing
We design commitments, negotiate them with CCS and advise on compliance, and we respond to CCS enquiries about completed, non-notified deals.
For a wider view of our work, see our practices and our guide to competition law in Singapore, or contact us about a specific transaction. Founders selling a business can also read our note on startup acquisitions.
Checklist for decision-makers
- Have we identified every market in Singapore where the parties overlap or have a supplier-customer relationship?
- Do our market shares exceed 40 per cent, or 20 per cent in a market where the top three firms hold 70 per cent or more, under any plausible definition?
- Does the transaction confer control, including through veto rights, and is any joint venture full-function?
- Have we chosen between no filing, pre-notification discussion, confidential advice and formal notification, and recorded why?
- Do the sale agreement's conditions, long-stop date and remedy covenants reflect the 2026 timetable?
- Are internal documents consistent with the competitive story we will tell CCS?
- Are clean-team and pre-closing conduct protocols in place?
- Has merger control in Singapore been aligned with filings in every other relevant jurisdiction?
Clear answers to these questions make merger control in Singapore a predictable workstream rather than a source of late surprises.
Frequently asked questions
01Is merger notification mandatory in Singapore?
No. Merger control in Singapore is voluntary, and parties may complete a merger without CCS clearance. However, section 54 of the Competition Act prohibits mergers that substantially lessen competition, and CCS can investigate completed mergers that were never notified. If it finds an infringement, it can direct the merger to be unwound or modified and, where the infringement is intentional or negligent, impose a financial penalty. Parties near the indicative thresholds should weigh this risk before deciding not to notify.
02What are the merger thresholds in Singapore?
There are no mandatory filing thresholds. CCS publishes indicative thresholds: it is generally unlikely to intervene unless the merged entity will have a market share of 40 per cent or more, or 20 to 40 per cent where the three largest firms together hold 70 per cent or more. It is also unlikely to investigate mergers between small companies where each party's Singapore turnover is below S$5 million and combined worldwide turnover is below S$50 million. These are guides, not safe harbours.
03How long does a CCS merger review take?
Under the revised guidelines effective 1 May 2026, Phase 1 takes 30 working days on the standard track and 25 working days on a streamlined track for mergers that clearly raise no concerns, with extensions capped at 20 additional working days. If CCS opens Phase 2, it aims to complete it within 100 working days. Time spent on pre-notification discussion, information requests and commitments negotiations can add to the overall timetable, so build realistic long-stop dates.
04How much does it cost to notify a merger to CCS?
CCS charges an application fee based on the target's turnover: S$15,000 where it is S$200 million or less, S$50,000 between S$200 million and S$600 million, and S$100,000 above S$600 million. A reduced fee of S$5,000 applies where all merger parties are SMEs, or where the acquirer is an SME that is not itself being acquired. CCS treats an SME as an entity with turnover of not more than S$100 million or not more than 200 employees.
05Can we discuss a merger with CCS confidentially?
Yes, in two ways. A pre-notification discussion lets parties preparing a filing agree with CCS what information is needed; any view CCS expresses is not binding and must be kept confidential. Separately, for an anticipated merger that is not yet public and raises a genuine competition issue, parties can seek confidential advice on whether it is likely to infringe section 54. A formal notification cannot be confidential, because CCS consults third parties.
06Does merger control in Singapore apply to joint ventures and minority stakes?
It can. A joint venture that performs all the functions of an autonomous economic entity on a lasting basis is a merger. Acquiring a minority stake can also be a merger if it confers decisive influence, for example through vetoes over the budget, business plan or senior appointments. Holdings above 50 per cent are treated as conferring control, and holdings between 30 and 50 per cent carry a rebuttable presumption of control under CCS guidance.
Sources and official materials
- Competition Act 2004 — Section 54 merger prohibition and enforcement powers
- CCS: Notify a merger (overview) — Voluntary regime, indicative thresholds, confidential advice
- CCS: Merger application cost — Fee bands and SME definition
- CCS: Discuss a merger with CCS — Pre-notification discussion requirements
- CCS: Merger assessment process — Substantive test, decisions and commitments
- CCS: Competition Act and Guidelines — Guidelines on Merger Procedures (revised 1 May 2026)
General information only, current as at 20 October 2026. It is not legal advice and does not create a lawyer–client relationship. Singapore law and regulatory practice change; check current official sources and take advice on the facts of your matter.
