上市方式 · 2026-01-29

Monetary Threshold Tests and Ratio Calculations for Notifiable Transactions Post-Listing

The 2024 amendments to the HKEX Listing Rules, effective 31 December 2024, have fundamentally restructured the monetary threshold tests for notifiable transactions under Chapter 14, introducing an inflation-adjusted scale and a new share-issuance test. This revision, the most significant since the 2017 codification of the 8%/25%/100% percentage ratios, directly impacts how listed issuers classify disposals, acquisitions, and connected transactions in a high-inflation environment. The HKEX’s 2024 consultation paper (HKEX, CP-2024-01) explicitly cited the erosion of nominal thresholds since their 2003 baseline, with the HKMA’s Composite Consumer Price Index rising by over 45% in that period. For CFOs and company secretaries, failing to recalibrate ratio calculations against these new limits — particularly the revised 5% de minimis for the asset test and the 25% threshold for a major transaction — exposes issuers to retrospective SFC enforcement under the Securities and Futures Ordinance (Cap. 571, SFO), Section 307C (disclosure of notifiable transactions). This article dissects the mechanics of the four percentage ratio tests (asset, profits, revenue, and consideration), the new share-issuance test under Rule 14.07(5), and the practical implications for cross-border deal structuring.

The Four Percentage Ratio Tests: Post-2024 Framework

The classification of a transaction as discloseable, major, or a very substantial disposal or acquisition hinges on the highest of four percentage ratios: the assets ratio, profits ratio, revenue ratio, and consideration ratio. Each is calculated against the issuer’s most recent published annual financial statements, with specific adjustments for interim periods.

Assets Ratio (Rule 14.07(1))

The assets ratio is the total assets the subject of the transaction divided by the issuer’s total assets. Under the 2024 amendments, the de minimis threshold was raised from 1% to 5% for the aggregate consideration test, meaning transactions with an assets ratio below 5% are now automatically exempt from the notification and shareholder approval requirements (provided no other ratio exceeds 25%). For a Hong Kong Main Board issuer with total assets of HKD 10 billion, this means an acquisition of assets worth up to HKD 500 million can proceed without a circular or shareholder vote, assuming the other ratios remain below 25%. The HKEX’s 2024 Guidance Letter HKEX-GL112-24 clarified that for asset acquisitions involving a target company, the “total assets” of the target must be taken from its audited accounts, not the purchase price allocation, unless the transaction is an asset purchase where only the specific assets are acquired.

Profits Ratio (Rule 14.07(2))

The profits ratio compares the profits attributable to the assets acquired or disposed of against the issuer’s profit before taxation and non-controlling interests. This ratio is notoriously volatile for cyclical industries. For example, a Hong Kong-listed airline acquiring a regional carrier in 2024 might show a profits ratio of 12% based on the target’s trailing twelve-month net profit of HKD 150 million against the issuer’s HKD 1.25 billion profit. However, if the issuer switches to an interim financial statement under Rule 14.10(2) — which allows use of the latest published six-month or quarterly accounts — the ratio could spike to 35% if the issuer’s profit fell to HKD 430 million in the first half. The HKEX’s 2024 revision introduced a mandatory “cap” on the profits ratio for transactions involving loss-making targets: if the target has a net loss, the profits ratio is deemed to be zero, preventing a transaction from being classified as a very substantial acquisition solely on a negative profits test (HKEX, Rule 14.08(2)).

Revenue Ratio (Rule 14.07(3))

The revenue ratio divides the revenue attributable to the transaction by the issuer’s revenue. This test is particularly relevant for revenue-generating businesses like retail chains or property investment trusts. A Hong Kong REIT acquiring a portfolio of commercial properties with annual rental income of HKD 200 million would calculate the revenue ratio against the REIT’s last full-year revenue of HKD 1.8 billion, yielding 11.1% — just above the 10% threshold for a discloseable transaction. The 2024 amendments did not change the 10%/25%/100% thresholds for the revenue ratio itself, but introduced a new “revenue consistency” requirement: if the target’s revenue is not representative of its ongoing business (e.g., one-off government subsidies), the issuer must adjust the figure or use the consideration ratio as a substitute (HKEX, Rule 14.08(4)).

Consideration Ratio (Rule 14.07(4))

The consideration ratio compares the total consideration payable (including deferred payments, earn-outs, and any liabilities assumed) to the issuer’s market capitalisation at the announcement date. This ratio is the most sensitive to market volatility. For a company with a market cap of HKD 5 billion, a HKD 1.5 billion acquisition yields a consideration ratio of 30%, pushing it into major transaction territory (25%-100%). The 2024 amendments introduced a “market capitalisation floor” for this test: if the issuer’s market cap has fallen by more than 50% in the six months preceding the announcement, the issuer must use the higher of the current market cap or the average closing price over the prior 20 trading days (HKEX, Rule 14.07(4)(b)). This prevents a distressed issuer from artificially lowering the ratio by using a depressed share price.

Rule 14.07(5), introduced in the 2024 revision, creates a fifth percentage ratio test specifically for transactions where consideration is satisfied wholly or partly by the issuance of new shares. The share-issuance test compares the number of new shares issued (or to be issued) to the issuer’s existing issued share capital at the announcement date.

If an issuer proposes to acquire a target for HKD 800 million, payable by issuing 200 million new shares at HKD 4.00 each, and the issuer has 1 billion shares in issue, the share-issuance ratio is 20% (200 million / 1 billion). This immediately classifies the transaction as a major transaction if the share-issuance ratio exceeds 25% — even if all four traditional ratios are below that threshold. The HKEX’s rationale, stated in the 2024 Consultation Conclusions (HKEX, CC-2024-03), is that significant share issuance dilutes existing shareholders and warrants the same protections as a major disposal. For connected transactions under Chapter 14A, the share-issuance test is mandatory: any issuance to a connected person (as defined under Rule 14A.07) triggers the connected transaction regime regardless of the other ratio tests.

Overlap with Chapter 14A Connected Transactions

The intersection of notifiable transaction thresholds and connected transaction rules is a common trap. Consider a Hong Kong-listed company acquiring a BVI-incorporated target from its controlling shareholder (a connected person under Rule 14A.07). If the assets ratio is 8% (below the 10% discloseable threshold) but the consideration ratio is 12% (above 10%), the transaction is a discloseable transaction under Chapter 14. However, because the counterparty is a connected person, the de minimis exemption under Rule 14A.76(2) applies only if all percentage ratios are below 5%. At 8% and 12%, the transaction requires both a circular and independent shareholder approval under Rule 14A.36. The 2024 amendments clarified that for connected transactions, the 5% de minimis threshold under Chapter 14A is absolute — no aggregation of multiple small connected transactions is permitted (HKEX, Rule 14A.81).

Practical Calculation Pitfalls and Cross-Border Considerations

The ratio calculations are not mechanical exercises; they require judgment on the “subject of the transaction” and the classification of consideration components. Cross-border structures add layers of complexity, particularly with PRC targets involving Variable Interest Entities (VIEs) or offshore SPVs in the Cayman Islands.

Aggregation of Transactions Under Rule 14.22

Rule 14.22 mandates aggregation of transactions completed within 12 months if they are “connected” by common counterparties, similar business lines, or a series of related steps. A Hong Kong issuer acquiring three separate PRC subsidiaries of a single parent company over 11 months — each with an assets ratio of 6% — would see the aggregated ratio reach 18%, triggering a discloseable transaction requirement. The 2024 amendments extended the aggregation period from 12 to 24 months for connected transactions under Chapter 14A, aligning with the SFC’s enforcement approach in SFC v. Hontex International Holdings Limited (2012) 15 HKCFAR 420, where the court held that serial small acquisitions constituted a single notifiable transaction.

Consideration in Kind and Earn-Out Structures

When consideration includes deferred payments or earn-outs, the calculation must include the maximum possible consideration under Rule 14.07(4)(c). If a HKD 500 million acquisition includes a HKD 200 million earn-out based on EBITDA targets, the consideration ratio uses HKD 700 million. For PRC targets with VIE structures, the HKEX’s 2023 Guidance Letter HKEX-GL107-23 requires the issuer to treat the VIE’s total assets and revenue as part of the target’s financials, not just the onshore WFOE. This can inflate the assets ratio significantly — a WFOE with HKD 100 million in assets might control a VIE with HKD 800 million in assets, yielding an assets ratio of 80% for a HKD 900 million issuer, pushing the transaction into a very substantial acquisition requiring shareholder approval.

Currency Conversion and Inflation Adjustments

The 2024 amendments introduced a mandatory inflation adjustment for transactions denominated in foreign currencies. If a Hong Kong issuer acquires a US target for USD 100 million, the consideration ratio must be converted at the HKMA’s fixing rate on the announcement date. However, for the assets and revenue ratios, the target’s financials must be translated at the average rate for the relevant financial year (HKEX, Rule 14.08(6)). A mismatch in translation rates can shift a transaction from a discloseable (8%) to a major transaction (26%) if the HKD weakened by 15% against the USD between the target’s year-end and the announcement date. The HKEX’s 2024 Staff Guidance Note HKEX-SGN-2024-02 recommends that issuers disclose both the spot and average rates in the announcement to avoid retrospective challenges.

Closing: Three Specific Actionable Takeaways for CFOs and Company Secretaries

Recalibrate your internal threshold monitoring system to the 2024 inflation-adjusted limits: the new 5% de minimis for the assets test (under Rule 14.07(1)(a)) and the mandatory share-issuance test under Rule 14.07(5) now require tracking issued share capital alongside asset and profit figures for every proposed transaction.
Audit all pending transactions for aggregation risk under the extended 24-month window for connected transactions (Rule 14A.81 as amended), particularly where multiple acquisitions from the same PRC parent group involve VIE structures — the combined assets ratio may exceed 25% even if each individual deal is below 10%.
Document your currency conversion methodology in the announcement using the HKMA’s fixing rate for consideration and the average annual rate for the target’s financials (HKEX, Rule 14.08(6)), and include a sensitivity analysis showing the impact of a 10% HKD depreciation on the percentage ratios to pre-empt SFC inquiries under SFO Section 307C.