Notifiable Transaction Rules: Transaction Size Test Classification Criteria

The SFC and HKEX’s joint consultation paper published in September 2024, which proposed a comprehensive overhaul of the notifiable transaction regime under the Listing Rules, is now moving towards codification with an expected implementation window in H1 2026. This is the most significant restructuring of Chapter 14 and Chapter 14A since the 2014 amendments, and it directly impacts how every Main Board and GEM listed issuer classifies acquisitions, disposals, and connected transactions. For IBD analysts constructing deal models, company secretaries drafting announcement templates, and CFOs evaluating asset purchases, the transaction size test remains the single most consequential gatekeeper: it determines whether a deal requires shareholder approval, a circular, or merely an announcement. Misapplying the percentage ratios — asset, profit, revenue, consideration, and share capital — can lead to a transaction being inadvertently classified as a major transaction when it should be a discloseable transaction, triggering unnecessary regulatory delays and cost overruns. This article provides a rule-by-rule breakdown of each size test, referencing the current Listing Rules (as of December 2024), and maps the proposed changes that will take effect in 2026.

The Five Percentage Ratios: Definitions and Application Mechanics

The classification of a notifiable transaction under HKEX Listing Rules Chapter 14 hinges on five percentage ratios, each calculated by comparing a metric of the target against the corresponding metric of the listed issuer. The highest ratio among the five determines the transaction class: below 5% is exempt, 5% to 25% is a discloseable transaction, 25% to 100% is a major transaction (requiring shareholder approval), and 100% or above is a very substantial acquisition or reverse takeover. The five ratios are the assets test (Rule 14.07(1)), the profits test (Rule 14.07(2)), the revenue test (Rule 14.07(3)), the consideration test (Rule 14.07(4)), and the share capital test (Rule 14.07(5)). Each has specific calculation nuances that practitioners must verify against the issuer’s latest published financial statements — typically the most recent annual report, or if more than six months have elapsed since the year-end, the most recent interim report.

Assets Test (Rule 14.07(1))

The assets test compares the total assets of the target (including any goodwill and intangible assets recognised on acquisition) to the total assets of the listed issuer. The numerator is the book value of the target’s total assets as shown in its latest audited or management accounts, adjusted for any fair value uplift if the acquisition agreement stipulates a purchase price allocation. The denominator is the issuer’s total assets from its latest consolidated financial statements. For a disposal, the numerator is the gross assets being disposed of, which may be a subsidiary, a division, or a specific asset group. A common error arises when the target has significant off-balance-sheet liabilities or contingent consideration: these are not included in the assets test but can distort the profits test and the consideration test. The HKEX Staff Guidance Note on Notifiable Transactions (HKEX-GL45-12, updated March 2023) clarifies that if the target is a company with no material assets but significant revenue, the assets test may understate the transaction’s relative size, and the revenue test becomes the controlling ratio.

Profits Test (Rule 14.07(2))

The profits test compares the target’s net profit attributable to equity holders (before exceptional items and minority interests) to the issuer’s net profit. The numerator is the target’s profit before tax, as consistently reported in its financial statements, but the HKEX permits the use of profit before tax or profit after tax provided the same basis is applied consistently across all ratios in the same transaction. The denominator is the issuer’s profit attributable to equity holders from its latest annual or interim accounts. If the target has a loss, the ratio is calculated as a negative percentage, which the HKEX treats as zero for classification purposes — meaning a loss-making target will never trigger a classification upgrade via the profits test alone. This creates a structural bias: a highly profitable issuer acquiring a smaller, profitable target may see the profits ratio spike, while a loss-making issuer acquiring a profitable target may see the ratio exceed 100% if the issuer’s loss is small in absolute terms. Practitioners should stress-test the profits test using the issuer’s trailing twelve-month (TTM) profit if the latest interim period is not representative.

Revenue Test (Rule 14.07(3))

The revenue test compares the target’s revenue to the issuer’s revenue, using the same financial statement periods as the assets and profits tests. This ratio is particularly relevant for service-oriented or technology companies where the target may have minimal assets but substantial recurring revenue. Under the current rules, the revenue test is calculated on a gross revenue basis — meaning revenue before any cost of sales deduction. For a disposal, the numerator is the revenue attributable to the assets or business being sold. The HKEX has historically accepted that if the disposed entity is a subsidiary that contributed to the issuer’s consolidated revenue, the revenue test can be calculated by reference to that subsidiary’s revenue as a proportion of the group’s revenue. The proposed 2024 consultation changes would introduce a “revenue-to-revenue” alignment with IFRS 15 recognition principles, but as of December 2024, the existing rule remains in force.

Consideration Test (Rule 14.07(4))

The consideration test compares the transaction consideration to the issuer’s total assets. The numerator is the total consideration payable by the issuer, including any deferred consideration, earn-out payments, and contingent consideration measured at fair value at the transaction date. For share-for-share acquisitions, the consideration is the fair value of the shares issued. For disposals, the consideration is the gross proceeds received. The denominator is the issuer’s total assets, identical to the assets test denominator. This ratio is often the highest among the five because the consideration may be structured as a large upfront payment relative to the issuer’s asset base, even if the target’s assets are modest. The HKEX requires that if the consideration is payable in a currency other than the issuer’s reporting currency, the exchange rate at the date of the agreement should be used, and any subsequent currency fluctuation must be disclosed but does not retroactively change the classification.

Share Capital Test (Rule 14.07(5))

The share capital test compares the number of shares issued or to be issued as consideration to the number of shares already in issue. This ratio applies only when the consideration includes the issuer’s own shares. The numerator is the total number of shares issued or issuable under the transaction, including any shares to be issued upon conversion of convertible instruments or exercise of warrants that form part of the consideration. The denominator is the total number of issued shares of the issuer at the date of the transaction agreement. If the issuer has a share buyback programme in progress, the HKEX treats the denominator as the number of shares in issue immediately before the buyback, not the reduced number after the buyback. This test is critical for M&A transactions where the acquirer uses its own equity as currency, such as a Hong Kong-listed company acquiring a private target through a share swap. If the number of shares to be issued exceeds 100% of the existing issued shares, the transaction is automatically a very substantial acquisition, regardless of the other four ratios.

Classification Thresholds and Their Practical Consequences

The percentage ratio thresholds are not merely arithmetic boundaries; they impose distinct procedural obligations that directly affect deal timelines and costs. The four classification tiers — exempt, discloseable, major, and very substantial acquisition (VSA) — each trigger a different set of Listing Rules requirements.

Exempt Transactions (Below 5%)

Any transaction where all five percentage ratios are below 5% is exempt from the notification, announcement, and shareholder approval requirements under Chapter 14. However, the exemption does not apply if the transaction is with a connected person, in which case the Chapter 14A connected transaction rules apply separately. For a purely notifiable transaction, the issuer must still maintain internal records and may need to disclose the transaction in the annual report if it is material to the business. The HKEX’s view, as expressed in HKEX-GL45-12, is that even exempt transactions should be conducted on normal commercial terms, and the board should document the rationale. In practice, most listed issuers voluntarily announce exempt transactions if they are strategic in nature, to manage market expectations.

Discloseable Transactions (5% to 25%)

A discloseable transaction requires the issuer to publish an announcement on the HKEX’s e-disclosure system as soon as possible after the terms are agreed. The announcement must contain the information specified in Rule 14.58, including a description of the target, the consideration, the basis for determining the consideration, the expected benefits, and the financial effects on the group. No circular or shareholder approval is required. The timeline is relatively short: the announcement must be filed within 24 hours of the agreement date for price-sensitive information, or within 48 hours for non-price-sensitive transactions. For IBD analysts, this means the announcement drafting process must begin simultaneously with term sheet negotiation, not after signing.

Major Transactions (25% to 100%)

A major transaction requires both an announcement and a circular to shareholders, plus shareholder approval by an ordinary resolution (50% plus one vote). The circular must contain the information specified in Rule 14.69, which includes a full financial analysis of the transaction, a pro forma financial impact statement, a valuation report if the transaction involves property or mineral assets, and an independent board committee recommendation. The timeline from announcement to shareholder meeting is typically 21 to 28 days, but can extend to 45 days if the HKEX requires additional information. The cost of preparing a circular — including legal, accounting, and valuation fees — can range from HKD 500,000 to HKD 2 million for a standard transaction, depending on complexity. Any connected person with a material interest in the transaction must abstain from voting, which can affect the likelihood of approval if the connected party holds a significant stake.

Very Substantial Acquisitions (100% or Above)

A VSA triggers the most onerous requirements: an announcement, a circular, shareholder approval by ordinary resolution, and the appointment of an independent financial adviser to opine on the fairness and reasonableness of the transaction. Additionally, the HKEX may treat a VSA as a reverse takeover if the acquisition results in a change of control or if the target is substantially larger than the issuer, which would require the issuer to be treated as a new listing applicant under Rule 14.54. This effectively means the issuer must submit a new listing application, including a full prospectus, financial statements for the target, and compliance with all Main Board or GEM listing eligibility criteria. Reverse takeover rules are governed by Rule 14.06B and the associated guidance in HKEX-GL104-19. For a family office or private equity firm considering a backdoor listing through a Hong Kong-listed shell, the VSA threshold is the critical trigger: any acquisition where the target’s assets, profit, revenue, consideration, or share capital exceed 100% of the issuer’s corresponding metric will force a de facto IPO process.

The 2024 Consultation Proposals: What Changes in 2026

The September 2024 joint consultation paper “Proposed Amendments to the Listing Rules Relating to Notifiable Transactions and Connected Transactions” proposes several changes that will materially alter how the size tests are applied. The consultation closed in November 2024, and the HKEX has indicated that the final rules will be published in mid-2025, with a six-month transition period before mandatory compliance.

Introduction of a New “Revenue-to-Revenue” Alignment

The consultation proposes replacing the current revenue test with a “revenue-to-revenue” calculation that aligns with the issuer’s revenue recognition policy under IFRS 15. Currently, the revenue test uses gross revenue, which can inflate the ratio for trading companies with high turnover but low margins. Under the proposed rule, the revenue test would use net revenue (revenue after deducting cost of sales) for issuers that report on a net basis. This change would reduce the classification for many distribution and trading companies, potentially moving transactions from major to discloseable or from discloseable to exempt.

Aggregation of Connected Transactions

The consultation proposes mandatory aggregation of all connected transactions with the same connected person within a 12-month rolling period, regardless of whether they are independently below the 5% de minimis threshold. Currently, aggregation applies only if the transactions are “in a series” or “in connection with the same project.” The new rule would require issuers to aggregate all connected transactions with the same counterparty, including those that were previously exempt. This will increase the compliance burden for issuers that have multiple ongoing connected transactions, such as recurring service agreements or rental arrangements with a controlling shareholder.

Enhanced Disclosure for Profit Forecasts

For major transactions and VSAs, the consultation proposes mandatory disclosure of profit forecasts and sensitivity analyses in the circular. Currently, profit forecasts are required only if the issuer chooses to include them. The new rule would require a statement of the assumptions underlying the forecast, a comparison with historical financial performance, and a sensitivity analysis showing the impact of a 10% deviation in key assumptions. This aligns with the SFC’s Code on Takeovers and Mergers (Rule 10) but extends the requirement to all notifiable transactions above the 25% threshold.

Actionable Takeaways

1. Run all five percentage ratios simultaneously at term sheet stage — the highest ratio determines the classification, and a single ratio misapplied can shift a discloseable transaction into a major transaction, adding 21 to 28 days to the timeline and HKD 500,000 to HKD 2 million in circular costs.

2. Use the issuer’s most recent annual or interim financial statements as the denominator, but if the transaction is announced more than six months after the year-end, the HKEX may require an updated interim report to be used as the denominator under Rule 14.20.

3. For share consideration transactions, the share capital test (Rule 14.07(5)) is the most volatile ratio — a 10% increase in the number of shares issued can push the ratio from 90% to 99%, still within major transaction territory, but a 15% increase to 115% triggers VSA classification and potential reverse takeover treatment.

4. Monitor the 2024 consultation proposals closely — the new revenue-to-revenue alignment and mandatory 12-month aggregation for connected transactions will require issuers to redesign their internal compliance checklists and transaction monitoring systems before the H1 2026 effective date.

5. Document the basis for each percentage ratio calculation in the board minutes — the HKEX’s enforcement division has, in recent cases (including the 2023 disciplinary action against a GEM-listed issuer), imposed fines for failing to properly disclose the calculation methodology, even when the final classification was correct.