JFTC merger control process
ConfidenceLikelyUpdated2026-07-29Review by2027-01-29Sources6Machine-translatedOriginal (JA)
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Overview
JFTC (Japan Fair Trade Commission) merger control is the antitrust review route that may sit in parallel with the FIEA tender offer route. Prior notification is required only when an enumerated transaction form, the applicable domestic-sales thresholds, the voting-right or transferred-business test, and the absence of an exemption all point to filing. A transaction that is not notifiable can still be reviewed under the Antimonopoly Act (AMA). It belongs in finance because competition review may affect cross-border M&A in Japan and acquisition-financed deals.
Read this page with MBO and squeeze-out process, activist playbook, Japan LBO economics, securities license stack, and the wider FinWiki index for routing.
Notification thresholds (post-2010 amendment)
Source: the table summarizes the JFTC’s current one-page Threshold for Notification. The diagram, AMA, implementing rules, group definitions, domestic-sales calculation, transaction form, and intra-group or other exemptions must be tested for the actual filing date.
| Transaction form | Main notification threshold fields |
|---|---|
| Share acquisition | Acquirer group domestic sales exceed JPY 20 billion; target group domestic sales exceed JPY 5 billion; and the acquisition newly takes the acquirer group’s voting-right ratio above 20% or 50%. |
| Merger | One participating company group has domestic sales exceeding JPY 20 billion and another has domestic sales exceeding JPY 5 billion. |
| Joint share transfer | One participating company group has domestic sales exceeding JPY 20 billion and another has domestic sales exceeding JPY 5 billion. |
| Company split | The applicable whole-business or substantial-business test is combined with the JPY 20 billion / JPY 5 billion or transferred-business sales threshold shown for that split form in the JFTC diagram. |
| Business or asset acquisition | The acquiring group domestic-sales test and the acquired whole or substantial business / fixed-asset sales test shown in the JFTC diagram apply; the commonly relevant acquired-business line is JPY 3 billion. |
Foreign-to-foreign transactions can be notifiable when the Japanese domestic-sales and transaction-form tests are met. Do not infer Japan filing status from another jurisdiction’s filing test.
Phase I / Phase II review
Source: the table follows the JFTC’s Policies Concerning Procedures of Review of Business Combination, review guidelines, and current mergers hub; voluntary consultation and information-response timing make actual duration case-specific.
| Stage | Statutory clock | What happens |
|---|---|---|
| Pre-notification consultation | Informal; no statutory completion clock | Voluntary meetings on filing scope, market definition, and evidence. |
| Notification filing | Day 0 | The notifying party files the form and supporting information; filing does not by itself imply a public case notice. |
| Phase I waiting period | 30 days | The parties may not complete the notified transaction during the statutory period. JFTC may shorten the period; a request for reports or information moves the review onto the extended-review timetable rather than simply extending Phase I. |
| Phase II request for reports | Triggered by a request during review | JFTC’s decision deadline is the later of 120 days from receipt of notification or 90 days from receipt of all requested reports. |
| Remedy discussion | If competition concerns arise | Parties may propose structural or behavioural measures; describe the actual commitment or JFTC decision rather than using the US term “consent decree.” |
| Review outcome | Case-specific | JFTC may finish review without a cease-and-desist order, or may proceed toward an order if concerns are not resolved. Read the issued notice or case summary for the exact outcome. |
Gun-jumping prohibitions
For a notifiable transaction, the relevant AMA provision bars completion during the statutory waiting period. Separate from that standstill, pre-closing coordination or information exchange can create ordinary cartel or unfair-trade-practice risk. Diligence should distinguish:
- completion of the notified share acquisition, merger, split, share transfer, or business acquisition before the waiting period ends;
- pricing, customer, supplier, output, or bid coordination between parties that remain independent competitors;
- access to competitively sensitive information beyond what is necessary for diligence and planning;
- operational steps that transfer control or integrate competing activities before closing.
Clean teams, outside-counsel filters, information barriers, and hold-separate covenants are possible risk controls, not universal JFTC requirements. Their design must match the transaction and also be kept analytically separate from FIEA insider-information controls.
Public case-file route
Source: the JFTC’s current mergers hub links annual notification statistics and selected case summaries. Publication is selective and is not proof that every notification has a public case page.
| Public record | Reading rule |
|---|---|
| Annual notification statistics | Use for the stated fiscal year and definitions; do not infer an individual deal outcome. |
| Selected case summary | Use the parties, markets, competitive analysis, and measures exactly as published for that case. |
| Third-party information request | Treat as an information-gathering step, not a final outcome. |
What to extract from a JFTC file
- Acquirer-group / target-group definition — full ultimate-parent capture under AMA Article 10 of the Act
- Domestic turnover figures — last-fiscal-year revenue, Japan-allocated
- Affected product markets — JFTC market-definition methodology (SSNIP-adjacent)
- HHI and HHI-delta — apply the horizontal, vertical, or conglomerate safe-harbor ranges exactly as stated in the current JFTC review guidelines; do not use one shorthand threshold for every theory of harm
- Remedies offered — structural vs behavioral, monitoring trustee design
- Cross-jurisdiction parallel filings — US HSR, EU EUMR, China SAMR, KFTC
Research checklist
- Identify any transaction-level adviser only from a named transaction filing or other dated deal document; an IB league table does not prove the adviser on a specific transaction.
- Pull the pre-notification consultation summary if published.
- Map notification dates against the TOB timeline and record a JFTC condition precedent only when the filed offer documents contain one.
- Read JFTC annual report for the year’s enforcement priorities and Phase II-rate.
- Check whether the deal also requires sector-license approval (banking, telecom, energy).
Related
- INDEX
- cross-border-m-a-japan
- japan-tender-offer-process
- japan-mbo-and-squeeze-out-process
- japan-acquisition-finance
- japan-leveraged-buyout-economics
- japan-activist-investor-playbook
- japan-fair-disclosure-and-insider-trading-controls
- securities-license-stack
- FinWiki index
Sources
- JFTC: Antimonopoly Act guidelines and notification rules (English).
- JFTC: M&A review enforcement page and annual press releases.
- JFTC: current threshold diagram, review guidelines, procedure policies, annual statistics, and selected case summaries.
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