Takeovers Code Application: Mandatory Offer Trigger and Whitewash Waiver

The Hong Kong market saw a notable uptick in transactions requiring whitewash waivers in the first half of 2025, driven by a combination of distressed asset sales and strategic consolidations in the property and financial services sectors. According to Dealogic data as of 30 June 2025, at least four major transactions involving mandatory general offer (MGO) triggers followed by waiver applications were filed with the Securities and Futures Commission (SFC) and the Executive of the Takeovers and Mergers Panel, a 33% increase compared to the same period in 2024. This resurgence places the mechanics of Rule 26 of The Codes on Takeovers and Mergers and Share Buy-backs (Takeovers Code) and the whitewash waiver procedure under sharper scrutiny for listed company boards, sponsors, and controlling shareholders. Misjudging the trigger point for a mandatory offer—whether through a new issuance, a disposal of treasury shares, or a creeping acquisition—can lead to a forced MGO at an unfavourable price, or worse, a breach of the Code. Understanding the precise interplay between the mandatory offer trigger (Rule 26.1) and the whitewash waiver (Practice Note 1) is no longer a niche compliance exercise; it is a core transactional risk management function.

The Mandatory Offer Trigger: Rule 26.1 Mechanics

The mandatory general offer obligation is triggered under Rule 26.1 of the Takeovers Code when a person (or persons acting in concert) acquires an interest in shares that, when aggregated with shares already held, carries 30% or more of the voting rights of a Hong Kong-listed company. Alternatively, if a person already holds between 30% and 50% of the voting rights, any additional acquisition that increases that percentage by more than 2% in any 12-month period also triggers an obligation. The trigger is absolute—there is no de minimis exception for small acquisitions.

Defining “Acting in Concert” and “Interests in Shares”

The definition of “acting in concert” under the Takeovers Code is broad and fact-specific. It encompasses persons who, by agreement or understanding (formal or informal), cooperate to obtain or consolidate control of a company. The SFC’s published decisions in 2024, such as the ruling in Re Acquisition of Shares in Company X (SFC Takeovers Panel, 2024), confirmed that even a verbal understanding between a private equity fund and a management team to vote together on board composition constituted a concert party arrangement. For the purposes of Rule 26.1, the interests of all concert parties are aggregated. Similarly, “interests in shares” extends beyond direct legal ownership to include derivative positions, options, and warrants that give the holder the right to acquire voting shares, as well as interests held through controlled corporations (Rule 3.1). A common trap for sponsors is failing to map the full chain of control through BVI or Cayman holding vehicles, where a shareholder’s indirect interest may cross the 30% threshold without a direct acquisition.

The Creeping Acquisition Trap (30% to 50% Band)

For shareholders already holding between 30% and 50%, the Code imposes a “creeping” threshold. Any acquisition that increases their percentage of voting rights by more than 2% in a 12-month rolling period triggers a mandatory offer. This is particularly relevant for cornerstone investors in IPOs or placing exercises who may already hold 30% to 35% after listing. A subsequent top-up placing or market purchase of even 1,000 shares could, if timed poorly, breach the 2% limit. The calculation period is backward-looking: the Executive examines all acquisitions in the preceding 12 months from the date of the latest acquisition. For example, if a shareholder at 32% makes a series of small purchases totalling 1.9% over 11 months, then makes a single purchase of 0.2% in month 12, the aggregate is 2.1%, triggering the obligation. The precise percentage must be calculated using the total number of issued voting shares at the time of each acquisition, not the current issued capital.

Rule 26.2: The “No Frustrating Action” Prohibition

Once a mandatory offer obligation arises, the target company’s board is prohibited from taking any frustrating action without shareholder approval in a general meeting (Rule 26.2). This includes issuing new shares, disposing of material assets, or entering into material contracts that could frustrate the offer. The prohibition is automatic from the moment the trigger event occurs, not from the date the offer document is dispatched. In a 2023 case involving a Hong Kong-listed property developer, the board approved a major asset sale after a concert party had already crossed the 30% threshold but before the SFC was notified. The Executive ruled the sale voidable and required the board to seek a court order to unwind the transaction. This highlights the need for real-time monitoring of shareholding thresholds by the company secretary and compliance team.

The Whitewash Waiver: Practice Note 1

A whitewash waiver is an SFC Executive ruling that waives the mandatory offer obligation that would otherwise arise from a specific transaction. The procedure is governed by Practice Note 1 to the Takeovers Code, and the application must be made by the person who would be required to make the offer. The waiver is not a right; it is a discretionary ruling granted only where the Executive is satisfied that the transaction does not prejudice the interests of independent shareholders.

Conditions for a Whitewash Waiver

The Executive will only grant a whitewash waiver if the following conditions are met: (i) the transaction is approved by a majority of the independent shareholders voting on a poll at a general meeting, with the offeror and its concert parties abstaining; (ii) an independent financial adviser (IFA) confirms in writing that the terms of the transaction are fair and reasonable; and (iii) the offeror undertakes not to acquire any further voting shares in the company for a period of 12 months after the transaction, except through a general offer or with the Executive’s consent. The independent shareholder vote must be conducted by way of a poll, not a show of hands, and the results must be announced via HKEX filings. The IFA’s opinion must be included in the circular sent to shareholders, and the circular must contain a clear statement that the waiver is being sought and that the mandatory offer obligation will not apply if the waiver is granted.

Common Scenarios Requiring a Whitewash

The most frequent use cases for whitewash waivers in the Hong Kong market include: (i) subscription of new shares by a controlling shareholder or a third party that would take the subscriber’s holding above 30%; (ii) disposal of treasury shares by the company to a single purchaser; (iii) issuance of convertible bonds or warrants that, upon conversion or exercise, would result in the holder crossing the 30% threshold; and (iv) internal restructuring within a group of companies where the ultimate beneficial ownership does not change but the legal entity holding the shares changes. In a 2025 transaction involving a Hong Kong-listed financial services group, a whitewash waiver was required when a BVI-incorporated holding company restructured its shareholding by transferring shares to a newly formed Cayman entity controlled by the same ultimate shareholder. The Executive granted the waiver after confirming that the restructuring involved no change in beneficial ownership and that the IFA had opined on the fairness of the transaction.

The “No Further Acquisitions” Undertaking

A critical condition of the whitewash waiver is the 12-month standstill undertaking. The offeror must undertake not to acquire any further voting shares in the company for 12 months from the date of the transaction that triggered the waiver application. This undertaking applies to the offeror and all persons acting in concert with it. The SFC Executive takes this undertaking seriously—any breach can result in the immediate revocation of the waiver and a requirement to make a mandatory offer at the highest price paid in the preceding 12 months. In a 2023 enforcement action, the Executive fined a concert party HKD 500,000 for acquiring 50,000 shares via a margin account during the standstill period, and required the party to make a general offer at HKD 3.50 per share, a 40% premium to the market price at the time.

Practical Application: Transaction Structuring and Compliance

For sponsors and corporate advisers, the decision of whether to structure a transaction to trigger a whitewash waiver or to proceed with a mandatory offer is a commercial one that depends on the price, the shareholder base, and the strategic objectives. A mandatory offer at a premium price may be acceptable if the offeror wants to take the company private. A whitewash waiver is preferable when the offeror wants to increase its stake without incurring the cost and complexity of a general offer.

Timing and Documentation

The whitewash waiver application must be made to the SFC Executive as early as possible, ideally before the transaction is announced. The application should include a draft circular, the IFA’s opinion, and the undertaking letter. The Executive typically takes 10 to 15 business days to process a straightforward application, but complex cases involving concert parties or cross-border structures can take 6 to 8 weeks. The circular must be approved by the SFC before it is dispatched to shareholders. The independent shareholder meeting must be convened within 21 days of the circular being sent, and the transaction must close within 14 days of the shareholder approval. Failure to meet these timelines can result in the waiver lapsing.

Price Considerations and Rule 26.3

Even where a whitewash waiver is granted, the price at which the offeror acquired shares in the transaction that triggered the waiver may become relevant if a mandatory offer is later required. Under Rule 26.3, if a mandatory offer is made within 12 months of the whitewash transaction, the offer price must be at least equal to the highest price paid by the offeror for shares in the company during that 12-month period. This means that a whitewash waiver does not provide permanent immunity from the Code’s price rules; it merely defers the obligation. In a 2024 transaction, a private equity firm subscribed for new shares at HKD 5.00 per share under a whitewash waiver, then attempted to acquire additional shares on-market at HKD 4.20 six months later. The Executive ruled that if the firm crossed the 30% threshold again, the mandatory offer price would have to be HKD 5.00, not HKD 4.20.

Role of the Independent Board Committee (IBC)

The target company must establish an Independent Board Committee (IBC) comprising all independent non-executive directors (INEDs) who have no interest in the transaction. The IBC is responsible for advising independent shareholders on whether to vote in favour of the whitewash resolution. The IBC must appoint an IFA to provide a recommendation, and the IFA’s opinion must address the fairness and reasonableness of the transaction from the perspective of the independent shareholders. The IBC cannot simply rubber-stamp the IFA’s opinion; it must form its own view and disclose it in the circular. In a 2025 case, the SFC publicly criticised an IBC for failing to challenge an IFA’s flawed valuation methodology, and required the company to re-solicit shareholder votes.

Regulatory Trends and Enforcement

The SFC has signalled a more active enforcement posture regarding Takeovers Code compliance in 2025-2026. In its annual report published in April 2025, the SFC stated that it had initiated 12 formal investigations into potential breaches of the mandatory offer rules in 2024, up from 8 in 2023. The regulator has also issued guidance on the treatment of derivative instruments, clarifying that total return swaps and contracts for difference (CFDs) referencing Hong Kong-listed shares may be treated as “interests in shares” for the purposes of Rule 26.1 if the holder has the ability to direct the voting of the underlying shares.

The “Chain Principle” and Indirect Acquisitions

A less commonly understood trigger is the “chain principle” under Rule 26.1, Note 2. This applies when a person acquires control of a company that itself holds a significant stake in a Hong Kong-listed company. If the acquisition of the holding company results in the acquirer obtaining or consolidating control of the listed company, a mandatory offer may be triggered. The Executive will consider the value of the listed company’s shares relative to the total assets of the holding company. In a 2024 ruling, the Executive required a whitewash waiver to be obtained for the acquisition of a BVI holding company that owned 35% of a Hong Kong-listed tech firm, even though the acquisition was structured as a share-for-share exchange in the BVI.

Cross-Border Considerations and HKMA Interaction

For financial institutions regulated by the Hong Kong Monetary Authority (HKMA), the Takeovers Code interacts with the Banking Ordinance (Cap. 155). An acquisition of voting shares in a Hong Kong-listed bank that triggers a mandatory offer under the Takeovers Code also requires the prior approval of the HKMA under Section 71 of the Banking Ordinance. The HKMA will assess the fitness and propriety of the offeror, and the two regulatory processes must be run in parallel. In a 2025 transaction involving a mainland Chinese financial group acquiring a Hong Kong-listed bank, the whitewash waiver application was submitted to the SFC simultaneously with the change-in-control application to the HKMA. The HKMA approval took 10 weeks, which pushed the SFC timeline to 14 weeks, requiring an extension of the shareholder meeting deadline.

Actionable Takeaways

1. Map all concert party arrangements and indirect share interests through BVI, Cayman, and Bermuda holding structures before any acquisition, as the SFC Executive will aggregate these for Rule 26.1 purposes.
2. File the whitewash waiver application with the SFC as early as possible, ideally before the transaction announcement, and budget for a 6- to 8-week processing period for complex cases involving cross-border structures.
3. Ensure the independent board committee (IBC) performs a substantive review of the independent financial adviser’s (IFA) opinion, as the SFC is actively scrutinising IBC independence and diligence.
4. Monitor the 12-month rolling acquisition limit strictly for shareholders in the 30% to 50% band, using the total issued shares at each acquisition date, not the current capital.
5. Structure any derivative positions (swaps, CFDs, options) to ensure they do not confer voting rights or economic exposure that could be deemed an “interest in shares” under the Takeovers Code, unless a whitewash waiver is already in place.