METI’s mixed message: New takeover guidance in Japan

Three years ago, in August 2023, the Ministry of Economy, Trade and Industry (METI) in Japan published a new set of best-practice guidelines on corporate takeovers. Since then the number of transactions reached record highs in 2024 and 2025, and their value hit a new peak last year. Despite these successes, METI recently produced new guidance to clarify what it says are misinterpretations of the spirit and intent of the original guidelines. While its ostensible aim is to foster a more mature M&A environment in Japan, the changes give boards several new reasons to oppose acquisitions. There is a risk that this mixed message could undermine the momentum behind M&A in Japan.

Equally concerning is the speed with which this new guidance has been produced, and its timing. After reconvening its “Fair Acquisition Study Group” in February 2026, METI held just three meetings to finalise its proposals by early June. It quickly published a consultation document in mid-June and has allowed just four weeks for public responses (deadline July 17). The tight timeline implies a lack of coordination by financial regulators and a missed opportunity for deeper dialogue with market participants who have only recently completed submissions on an extensive rewrite of the Corporate Governance Code in mid-May and major proposed amendments to the Companies Act in late May. Not to mention that late June is peak AGM season.

“Misperceptions”

METI’s core argument is that the 2023 “Guidelines for Corporate Takeovers” have been insufficiently understood by companies and other stakeholders in certain fundamental ways. These include a belief on the part of directors that they must accept the highest price bid in a takeover offer or could be sued for breach of duty of care; that they cannot favour an internal plan to enhance corporate value over an outside offer; and that they cannot take the concerns of employees and business partners into account when deciding on M&A proposals.

Most of these worries lack a firm basis. While the Guidelines are pro-shareholder in many ways, they also offer flexibility to boards in deciding how to respond to takeover bids and makes clear that long-term “corporate value” is equally, if not more, important. Boards need to do their best to secure a fair deal for shareholders in a takeover, but shareholders are not the only stakeholder whose interests should be considered.

What corporate critics want is a series of cut and dried statements from METI allowing them to oppose takeovers they do not like, backed by a broader set of grounds for doing so. This would offer boards protection from being sued by shareholder activists if they turn away from high, or higher, priced acquisition offers. The fact that lawsuits against directors for breaching duty of care are extremely rare in Japan doesn’t seem to matter. Fears about rising shareholder activism have created a backlash among politicians, officials and old-school industrial giants, driving policymakers to go with the political flow.

Yet in catering to its core corporate constituency, METI risks alienating investors. In response to reports that METI was “seeking to correct what it views as an overemphasis on price in acquisition decisions”, the American Chamber of Commerce in Japan (ACCJ) urged the ministry in March 2026 to “refrain from weakening the Guidelines”, which have been “hugely successful in encouraging Japanese listed companies to take all concrete acquisition pro­posals seriously, including unsolicited proposals”.

The consultation

Treading a fine line, METI has tried hard to reassure the market that it is not revising the Guidelines themselves. Rather it is clarifying their true meaning. Hence, the full text of the guidelines remains intact and two new documents have been produced: a “Key Points” summary of the original guidelines; and a set of “Q&A” elaborating on different scenarios that boards might face.

While the Key Points and Q&A documents largely summarise the original Guidelines on best practices that boards should follow in assessing takeover proposals, including such things as “sincere consideration of bona-fide offers” and establishment of special committees, investors will be particularly interested in METI’s new framing of the issues of price and stakeholders.

On price, boards should understand that a “desirable acquisition” is not necessarily one that offers a high, or the highest, acquisition price. According to METI, this is because a high price alone will not necessarily ensure that corporate value is enhanced over the medium to long-term. Such acquisition proposals may contain negatives like a heavy future debt burden (for example in a leveraged buyout) or plans to break up the company, sack staff, and change business partners—all of which may undermine the company’s ability to grow in future.

On stakeholders, boards should give greater weight to “qualitative value” when assessing corporate value. While corporate value is largely a “quantitative concept”, defined as the sum of the present values of discounted cash flows (DCF) generated by a company, various non-financial factors can have a tangible impact on future cash flows or the discount rate used. METI lists these as including: the contributions of employees, counterparties, and other stakeholders; the establishment of governance structures and sustainable business activities involving stakeholders such as local communities and the global environment; and how the company manages economic security issues, principally supply chains and technical information.

During the drafting of the Key Points and Q&A, METI also conducted hearings with 22 selected parties to seek their views on the Guidelines. Although not named, respondents included six target companies, six acquirers, six investors, two financial advisors and two legal advisors. A further 15 written submissions were received.

The price issue

Were the 2023 Guidelines so unclear on price as to need clarifying? We do not think so.

The original guidelines frame this discussion by laying out what it calls the “Three Principles”. They are “corporate value and shareholders’ common interests”, “shareholders’ intent”, and “transparency”.

A “desirable acquisition” is one that should secure both corporate value and shareholder interests (underlining added). Companies should rely on the “rational intent” of shareholders in matters involving the corporate control of the company (ie, allow them to decide whether to tender their shares; or vote on takeover defences if the board believes that is in the company’s best interests). And both the acquiring party and the target company should provide information “appropriately and proactively” to allow shareholders to judge a tender offer on its merits.

Despite a clear emphasis on shareholder interests, the Guidelines do not bind a board to opt for the highest price bidder. What it does say is that the “purchase price and other transactions terms must be seriously considered”. And: “If an increase in corporate value can be reasonably expected from the acquisition proposal, as suggested by a purchase price that is considerably higher than the historical stock price level, each director and the board of directors should give the proposal due consideration.” Due consideration does not mean directors have no decision-making latitude however.

Moreover, the Guidelines envisage that boards might not support a takeover bid at a price higher than the market price: “Often, the proposed purchase price can be higher than the immediately preceding stock price… If the board of directors decides not to support such acquisition proposal, one approach is, prior to making such decision, to compare the alternatives on the assumption that a post-decision explanation may be required in this regard.” Footnote 27 underscores that directors have a duty to explain publicly their decisions on acquisitions.

In general terms, therefore, the Guidelines already offer boards and directors flexibility on whether to support or oppose acquisition offers whatever the price. It is hard to see how it could be otherwise given the fact that Japanese law does not contain a US-style “Revlon Rule”, which obligates directors to secure the highest possible price for shareholders when a public company is being sold or broken up. Revlon’s absence in Japan is not mentioned in the Guidelines, though is highlighted in both the Key Points and Q&A documents.

Yet none of the above means price considerations can be easily dismissed by a board.

One scenario where price is paramount is a 100% acquisition of a company. If the ultimate aim of a tender offer is to squeeze-out all shareholders, then what incentive do the latter have to accept anything less than the highest bid? As the Guidelines state succinctly, in all-cash, full acquisitions the “transaction terms in terms of price will be particularly important to shareholders” because it is their “last opportunity” to gain benefit from their investment.

The Guidelines then turn to partial acquisitions, where shareholders may not be able to tender all their shares whatever the price and will be left as minorities in a company that has undergone a change of control. It says that if the problems caused by such an acquisition are significant, then one possible solution is to negotiate with the acquirer for a full acquisition—and by implication, the highest possible price. If not, then the board needs to explain to shareholders how the transaction will improve corporate value over the longer term.

The Guidelines go on to say that boards also have a duty to negotiate “diligently” with acquirers to improve the terms of a deal, so that the “acquisition is conducted on the best available transaction terms for the shareholders”.

In sum, there are certainly aspects of the Guidelines that are not clear (see below) but price is not one of them. By emphasizing the right of companies to reject high-priced acquisitions, METI risks creating a new misunderstanding that directors do not need to seek the best possible terms for shareholders.

Qualitative value

Things look set to get even more complicated on stakeholders.

Although the Guidelines defined corporate value in conventional DCF terms, it acknowledged that qualitative factors such as employees, counterparties and other stakeholders could influence a company’s future cash flows and therefore its value. Moreover, in recent years, investors have increasingly used non-financial information relating to social and environmental factors to value companies.

Having made this high-level point, the document reiterates that corporate value is a quantitative concept and warns companies that emphasizing “qualitative value”, which is “difficult to measure”, could make the concept of corporate value “unclear”. It also warns companies against using corporate value to protect themselves against a takeover, including management “referring to the retention of employees as an excuse to defend themselves”.

In contrast, the tone and emphasis in METI’s new interpretation is notably more positive on employees. The Q&A asks how the board of a target company that receives a takeover offer from an acquirer with a reputation for dismissing people post-acquisition should “confirm the voices” of its employees.

METI says that harm to the interests of stakeholders generally, business partners as well as employees, can be taken into account. Boards should also be sceptical of any acquirer who has “significant compliance or ethical issues or lacks a sustainability perspective”. And they should guard against any possibility that the “supply chain will become vulnerable due to changes in procurement sources or that technical information may leak after the acquisition”.

This new guidance is therefore more than a mere clarification of the existing Guidelines. It is a substantive extension of their scope.

While sensible companies will likely apply this new interpretation in a balanced way—indeed we would expect any competent board to take a broad range of issues into account in forming a view on any acquisition proposal—the danger is that METI is handing companies many more grounds on which to reject offers that shareholders favour and could be good for corporate value.

As the minutes of the Fair Acquisition Study Group show, some members expressed concerns about METI’s new approach to qualitative value. One noted that innovation is a particularly important issue in Japan right now, including the rise of AI. Acquisitions involving innovative strategies typically entail significant changes to a business and the use of existing assets to create new businesses. This in turn may lead to opposition from stakeholders such as business partners and employees whose interests are adversely affected. Yet it would be problematic if their approval became a “condition precedent” for a sale.

It is also worth noting that the survey conducted by METI reported concerns from investors about instances where management had tried to block acquisitions by “coercing employees into expressing opposing views in order to protect their own positions”.

National security

A further factor likely to complicate board decision-making involves national economic security issues. As noted, one of the new elements in the Key Points document is a note expanding the list of qualitative factors to include the strengthening of supply chains and preventing the leakage of technical information—both of which were not in the Guidelines. The implication is that corporate activities often overlap with national security concerns and boards should take this into account when considering takeover offers.

Yet this responsibility is necessarily limited. As the Guidelines alluded to, and discussion in the Study Group made clear, any serious acquisitions affecting national security would have to pass through the Foreign Exchange and Foreign Trade Act (FEFTA) process overseen by the Ministry of Finance and in which METI is closely involved. FEFTA underwent significant amendments in 2019 that raised scrutiny of foreign direct investments (FDI) in sensitive sectors. An even more important amendment was passed by the Diet in May 2026 to create a cross-ministerial, inter-agency body to review FDI similar to the CFIUS process in the US. It would have been helpful if METI’s new takeover guidance had clarified the evolving links between FEFTA and M&A best practice.

Magnifying flaws

Inadvertently, one consequence of this exercise has been to highlight several flaws in the Guidelines themselves as well as the Key Points and Q&A.

The first is the narrow definition of “corporate value”. By basing it on only the DCF model, the implication is that all listed companies in Japan are mature entities with regular and predictable cash flows. While this may be true of larger and more established firms, it does not make sense for start-ups, growth companies, and underperforming issuers who may be subject to a takeover. There are multiple different ways to value a company, subjectivity clouds the process, and the exercise is as much art as science. Investor dissatisfaction with the valuation models initially used in the privatisation of Toyota Industries in mid-2025 exposed a gap between companies and shareholders on this front in Japan. For background, see Toyota tests the system, fall short.

In this context, the expansion of the qualitative value concept in the Key Points and Q&A will likely make the task of boards harder and create more points of tension with shareholders. METI recognises that social, environmental and human resource issues are “difficult to measure”, a statement echoed by one investor member of the Study Group who said his firm had significantly improved its methodology for incorporating non-financial information into corporate value, but that it was a work in progress. Yet there is little new guidance from METI on how to do this effectively. As to what firms should do, it gives the “what” not the “how”. This feels like a missed opportunity and an argument for taking a more measured approach to revising the Guidelines themselves.

Nor is there much new advice on how boards should assess future corporate value in takeovers when the information provided by acquirers is inadequate. METI’s own survey contains an enlightening list of comments from target company interviewees on this topic:

·      “We asked questions regarding synergies, but received almost no response.”

·      “I asked about concerns regarding dis-synergies and alternative measures, but received only theoretical, unsubstantiated responses.”

·      “The acquirer states that it will not impair corporate value, but the issue is how it will guarantee this.”

As for acquirers, there was one response: “We responded sincerely to the questions from the target company, though some answers were unavoidably abstract.”

While the Guidelines outline the range of information an acquirer is expected to provide when launching a bid, they do not say much about what should happen if the quality or quantity of information is insufficient. The Key Points and Q&A add nothing new on this point.

Reality check

A careful reading of the Guidelines suggests that METI did not need to reinterpret the document on the issue of price. Boards already have sufficient latitude to oppose acquisitions offering a high price if they have good reasons for doing so. The key point is that they must explain their rationale in detail to shareholders. If an acquirer still goes ahead with a tender offer, shareholders retain the right to sell or hold onto their shares.

Introducing a more expansive definition of qualitative value on one hand appears pragmatic: boards should take a wide range of financial and non-financial factors into account when considering business strategy and growing value, and we believe competent ones already do. It is also widely accepted that many companies today face greater geopolitical and economic security challenges, hence reviewing supply chain and IP issues in the context of M&A is critical. Yet METI’s new guidance runs the risk of being seen as favouring the status quo and being anti-innovation. The longer list of qualitative factors is almost an invitation to less competent and more defensive boards to look for reasons to oppose high-priced bids.

Returning to trends and patterns in the broader M&A environment in Japan, it is not just the past two years that have been impressive but much of the past two decades. Data METI presented to the first meeting of its Study Group shows that transaction numbers ranged from around 2,500 to 4,000 in most years between 2001 and 2025. The mean average was 3,850 (rounded), increasing to 5,266 over the past eight years (Firefly calculations). Absolute annual numbers then reached records highs of 5,689 and 6,259, respectively, in 2024 and 2025. In other words, METI’s guidelines have broadly been doing their job and most boards appear to understand their spirit and intent. Investors are right to worry that this new interpretation could backfire.