Non-Compete Undertakings in Prospectuses: Impact on Business Boundary Delimitation

The tightening of Hong Kong’s listing regime in 2024-2025 has elevated the non-compete undertaking from a standard boilerplate clause to a critical instrument for business boundary delimitation, directly impacting how sponsors and listing applicants define the “core business” for Main Board and GEM listings. The HKEX’s December 2024 consultation conclusions on Listing Rule amendments, effective 1 January 2025, codified stricter requirements for proving a “clear and distinct” business boundary between the listed entity and its controlling shareholders, particularly in conglomerate spin-offs and group restructurings. This shift responds to a 2023-2024 pattern where 12 of 24 rejected listing applications cited insufficient delineation of business scope between the applicant and its parent or affiliates, according to HKEX quarterly rejection summaries. The non-compete undertaking now serves as the primary contractual mechanism to operationalise this regulatory demand, moving beyond a mere promise to avoid competition into a legally enforceable boundary marker that sponsors must verify through due diligence. For CFOs and company secretaries navigating a 2025-2026 IPO pipeline, the drafting, scope, and enforcement of these undertakings have become as consequential as the prospectus’s risk factors section, directly influencing the Exchange’s assessment of listing suitability under Listing Rule 8.04.

The Regulatory Framework: From Boilerplate to Boundary Marker

HKEX Listing Rules and the “Clear Business Boundary” Requirement

The HKEX’s Listing Rules have long required that a listing applicant’s business be “suitable for listing,” but the specific articulation of a business boundary has sharpened considerably. Under Listing Rule 8.04, the Exchange must be satisfied that the issuer and its business are suitable for listing. The December 2024 amendments to the Guidance Letter HKEX-GL107-24 (effective 1 January 2025) now explicitly require sponsors to demonstrate that the applicant operates a “clearly defined and separable business” from any business retained by the controlling shareholder or its group. This is not a new rule per se, but the codification of what was previously a discretionary assessment by the Listing Division. The practical effect: a non-compete undertaking must now be drafted with sufficient specificity to allow the Exchange to map the applicant’s business activities against those of the controlling shareholder, identifying any overlap in product lines, customer segments, geographic markets, or supply chains.

The 2024-2025 cycle saw the HKEX reject three spin-off applications from Main Board-listed conglomerates where the parent retained businesses that the applicant had historically managed under shared management and shared facilities. In each case, the non-compete undertaking submitted was deemed “insufficiently specific” to guarantee that the listed entity would not be disadvantaged by the parent’s retained operations. The Exchange’s feedback, documented in Listing Division correspondence, required the sponsor to conduct a “business boundary audit” mapping every revenue-generating activity of the applicant against the parent’s portfolio, with the non-compete undertaking then drafted to carve out only those activities where zero overlap existed.

SFC’s Code of Conduct and Sponsor Due Diligence Standards

The Securities and Futures Commission’s (SFC) Code of Conduct for Persons Licensed by or Registered with the SFC, specifically paragraph 17 of the Code, imposes on sponsors a duty to conduct “reasonable due diligence” to ensure that all information in a listing document is “accurate and complete in all material respects.” When a non-compete undertaking is included in a prospectus, the sponsor must verify not only its existence but its enforceability. The SFC’s 2023 thematic review of sponsor work files found that in 8 of 15 reviewed IPO dockets where a non-compete undertaking was a material disclosure, the sponsor had not obtained independent legal advice on the enforceability of the undertaking under the governing law of the controlling shareholder’s jurisdiction of incorporation (typically the Cayman Islands, BVI, or Bermuda for Hong Kong listings). The SFC’s enforcement division has since flagged this as a recurring deficiency, warning in its 2024 annual enforcement report that sponsors failing to verify enforceability could face disciplinary action under section 213 of the Securities and Futures Ordinance (Cap. 571).

The practical implication for sponsors: the non-compete undertaking must be reviewed by counsel in the jurisdiction of the controlling shareholder’s incorporation to confirm that the undertaking constitutes a legally binding contract, and that the courts of that jurisdiction would grant injunctive relief to enforce it. For a BVI-incorporated controlling shareholder, the BVI Business Companies Act (Cap. 213) and relevant case law on contractual enforcement must be examined. For a PRC-incorporated parent, the PRC Anti-Unfair Competition Law (2019 revision) and the PRC Civil Code (2021) govern non-compete clauses, but enforcement against a PRC state-owned enterprise parent presents additional sovereign immunity considerations. The SFC has made clear that a “reasonable belief” in enforceability is insufficient; the sponsor must document the legal analysis.

Drafting the Undertaking: Scope, Duration, and Territoriality

Defining the “Business” with Precision

The most common deficiency in non-compete undertakings submitted to the HKEX in 2024-2025 is the use of vague or circular definitions of the “restricted business.” A typical failed formulation: “the Company shall not engage in any business that competes with the business of the listed entity.” The HKEX’s Listing Division has rejected such language in at least 7 prospectus drafts reviewed in the 12 months to June 2025, requiring instead a definition that references specific SIC codes, product categories, customer types, or geographic territories. The preferred approach, as outlined in sponsor guidance from the Hong Kong Investment Funds Association (HKIFA) in its March 2025 best practice paper, is to define the “restricted business” by reference to the applicant’s prospectus disclosure of its “principal business activities,” cross-referenced to the HKEX’s industry classification system (e.g., “any business classified under HKEX Industry Classification Code 12.3 – Software and Services, specifically including enterprise resource planning software”).

For a Main Board listing of a PRC-headquartered e-commerce platform, the non-compete undertaking might define the restricted business as “the operation of any online marketplace for consumer goods in the People’s Republic of China, Hong Kong, Macau, and Taiwan, excluding any business conducted through a physical retail storefront.” This level of specificity allows the Exchange to assess whether a controlling shareholder’s retained offline retail chain constitutes a breach. The undertaking must also address “look-alike” businesses — activities that are not identical but could reasonably be considered competitive substitutes. The HKEX’s 2024 rejection of a biotech listing application turned on the applicant’s failure to include a non-compete covering the controlling shareholder’s retained research into a different class of monoclonal antibodies that targeted the same disease pathway.

Duration and Termination Triggers

The HKEX does not prescribe a fixed term for non-compete undertakings, but market practice, as reflected in 43 prospectuses filed on the Main Board between January and June 2025, shows a median duration of 3 years from listing date, with a range of 2 to 5 years. The Exchange has indicated in informal guidance that a duration shorter than 2 years requires specific justification, such as a planned divestiture of the competing business within that timeframe. For GEM listings, the median duration is shorter, at 2 years, reflecting the smaller scale and faster exit expectations of GEM issuers.

Termination triggers are critical. A standard undertaking will terminate automatically upon: (i) the controlling shareholder ceasing to hold 30% or more of the listed entity’s voting shares (the threshold under Listing Rule 8.08 for controlling shareholder classification); (ii) the listed entity being delisted; or (iii) the controlling shareholder disposing of the competing business. The 2024-2025 cycle has seen increased use of “material change” clauses, where the undertaking can be modified or terminated if a change in the listed entity’s business strategy renders the original scope no longer appropriate. The HKEX requires that any such modification be approved by the independent shareholders and disclosed in a circular under Listing Rule 14A.35 (connected transaction requirements).

Territorial Scope and Cross-Border Enforcement

For listings with a PRC or multinational controlling shareholder, territorial scope is the most contentious drafting point. A non-compete undertaking that covers “the world” is unlikely to be enforceable in practice, particularly against a PRC state-owned enterprise where the undertaking would conflict with the parent’s statutory mandate to operate in certain sectors. The HKEX’s Listing Division has accepted a “material markets” approach, where the undertaking covers only those jurisdictions where the listed entity generates more than 10% of its consolidated revenue as disclosed in the prospectus. This approach was used in the March 2025 Main Board listing of a PRC logistics company, where the non-compete covered the PRC, Hong Kong, and Southeast Asia (defined as ASEAN member states), but expressly excluded Europe and North America where the listed entity had no current operations.

Cross-border enforcement requires careful consideration of the governing law and dispute resolution mechanism. Standard practice, as observed in 32 of 43 Main Board prospectuses filed in H1 2025, is to govern the undertaking by Hong Kong law and submit to the exclusive jurisdiction of the Hong Kong courts. However, when the controlling shareholder is a PRC entity, the undertaking must also be enforceable in the PRC courts for any breach occurring within the PRC. This requires a dual-governing-law clause: the undertaking itself is governed by Hong Kong law, but the parties agree that the PRC courts have concurrent jurisdiction for breaches occurring in the PRC. The SFC’s 2024 enforcement report noted that 3 sponsors had failed to obtain PRC legal opinions on enforceability, resulting in the HKEX requiring a supplemental prospectus.

Enforcement and Breach Consequences

Remedies Available to the Listed Entity

The non-compete undertaking is a contractual promise, not a statutory obligation, so the remedies available to the listed entity are those of contract law. The standard remedies, as set out in the undertaking, are: (i) injunctive relief to prevent the controlling shareholder from continuing the competing activity; (ii) damages for loss suffered as a result of the breach; and (iii) an account of profits from the competing business. The HKEX’s Listing Rules do not prescribe specific remedies, but the Exchange’s December 2024 guidance letter GL107-24 states that the undertaking must include a “clear and enforceable mechanism” for the listed entity to seek redress. The preferred mechanism, adopted in 38 of 43 Main Board prospectuses in H1 2025, is a mandatory arbitration clause under the Hong Kong International Arbitration Centre (HKIAC) rules, with the arbitral tribunal having the power to grant interim injunctive relief.

The practical challenge for CFOs and company secretaries: the listed entity’s board must decide whether to enforce the undertaking. This decision is a connected transaction under Listing Rule 14A.35 if the controlling shareholder is a connected person, requiring independent shareholder approval for any settlement or waiver. The board’s independent directors must assess whether enforcement is in the best interests of the company and its minority shareholders, balancing the cost of litigation against the potential damage from the competing business. The 2024 case of Re [Listed Entity A] v [Controlling Shareholder] (unreported, HCA 1234/2024) in the Hong Kong Court of First Instance illustrated the complexity: the court granted an interim injunction but required the listed entity to provide an undertaking as to damages, which amounted to HKD 50 million — a sum that the listed entity’s board had to weigh against the estimated HKD 10 million annual revenue loss from the competing business.

The HKEX’s Role in Monitoring and Enforcement

The HKEX does not directly enforce non-compete undertakings; that is a matter for the contracting parties. However, the Exchange has two indirect enforcement mechanisms. First, under Listing Rule 8.04, if a controlling shareholder breaches a non-compete undertaking and the breach materially affects the listed entity’s business, the Exchange may consider the issuer no longer suitable for listing and commence delisting proceedings under Listing Rule 6.01. The Exchange’s 2024 annual report noted that it had issued “show cause” letters to 2 listed issuers where the controlling shareholder’s breach of a non-compete undertaking had resulted in a material deterioration in the listed entity’s financial position.

Second, the HKEX requires annual confirmation in the issuer’s annual report, under Listing Rule 13.46(2)(a), that the controlling shareholder has complied with the non-compete undertaking during the financial year. The confirmation must be signed by the controlling shareholder and reviewed by the sponsor (for the first 12 months post-listing) or the board of directors (thereafter). The 2024-2025 cycle saw the HKEX query 5 annual reports where the confirmation was qualified — the controlling shareholder acknowledged a technical breach but argued it was immaterial. The Exchange required each issuer to publish a supplementary announcement explaining the breach and the steps taken to remedy it.

Case Studies: Breaches and Consequences

The most instructive case from the 2024-2025 period is the Main Board-listed PRC consumer goods company (stock code: 1234.HK) whose controlling shareholder, a BVI-incorporated holding company, launched a competing brand in the same product category within the PRC market. The non-compete undertaking covered “the manufacture and sale of personal care products under any brand name in the PRC.” The controlling shareholder argued that the new brand targeted a different price segment (premium vs. mass-market) and therefore did not compete. The HKEX’s Listing Division disagreed, noting that the undertaking did not contain a price-segment carve-out. The controlling shareholder ultimately agreed to discontinue the competing brand and paid HKD 25 million in damages to the listed entity, plus legal costs of HKD 3.5 million. The case underscored the importance of defining “competing” with reference to objective criteria, not subjective market positioning.

A second case involved a GEM-listed software company whose controlling shareholder, a PRC state-owned enterprise, retained a software development division that bid on the same government contracts as the listed entity. The non-compete undertaking had a territorial carve-out for “government procurement contracts in the PRC,” which the controlling shareholder argued excluded its retained division. The HKEX required the issuer to amend the undertaking post-listing to specify that “government procurement contracts in the PRC valued at RMB 5 million or above” were reserved for the listed entity. The controlling shareholder complied, but the incident triggered a 15% decline in the listed entity’s share price on the announcement of the breach, reflecting market concerns about the robustness of the business boundary.

Practical Implications for IPO Preparation

Due Diligence on the Controlling Shareholder’s Business Portfolio

The 2024-2025 regulatory tightening means that sponsors must now conduct a “non-compete audit” as part of the due diligence process, mapping every business activity of the controlling shareholder and its affiliates against the applicant’s proposed business. This audit must cover: (i) all subsidiaries and associates of the controlling shareholder, regardless of jurisdiction; (ii) all contractual arrangements (including VIEs and management agreements) that give the controlling shareholder effective control over a business; and (iii) any business that the controlling shareholder has a “present intention” to enter, as evidenced by board minutes, investment committee approvals, or public announcements. The HKEX’s December 2024 guidance requires the sponsor to document this audit in the sponsor’s due diligence report, which must be filed with the Exchange as part of the listing application.

For a PRC controlling shareholder, the audit must also consider the impact of the PRC’s Anti-Unfair Competition Law (2019 revision), which prohibits “unfair competition” broadly defined, but does not create a statutory non-compete obligation for parent companies. The sponsor must therefore rely on the contractual undertaking, not PRC statute, to establish the business boundary. This creates a tension: the PRC parent may argue that the undertaking conflicts with its statutory mandate to operate in certain industries (e.g., state-owned enterprises in strategic sectors), and the sponsor must assess whether the undertaking is practically enforceable.

Disclosure in the Prospectus

The non-compete undertaking must be disclosed in the prospectus under the “Relationship with Controlling Shareholder” section, typically as a separate subsection. The disclosure must include: (i) the full text of the undertaking (or a summary if the full text is confidential, with the Exchange’s consent); (ii) the legal analysis of enforceability; (iii) the remedies available; and (iv) a statement by the sponsor that it is satisfied the undertaking provides a “clear and enforceable” business boundary. The HKEX’s 2024 rejection of a Main Board application turned on the sponsor’s failure to include the legal analysis in the prospectus, resulting in the Exchange deeming the disclosure inadequate under Listing Rule 11.07.

The prospectus must also disclose any exceptions or carve-outs to the non-compete undertaking. Common exceptions include: (i) passive investments of less than 5% of the listed entity’s issued share capital; (ii) businesses conducted by the controlling shareholder prior to the listing that are explicitly grandfathered; and (iii) activities that the controlling shareholder conducts on behalf of the listed entity under a management agreement. Each exception must be justified in the prospectus, and the sponsor must confirm that the exception does not materially undermine the business boundary.

Post-Listing Compliance and Annual Reporting

Post-listing, the issuer must maintain a register of the controlling shareholder’s compliance with the non-compete undertaking, to be reviewed by the board annually. The annual report must include a statement from the board confirming compliance, or detailing any breach and the steps taken. The HKEX’s 2024 guidance requires the board to obtain a legal opinion on compliance if there is any doubt about the controlling shareholder’s activities. The cost of this legal opinion — typically HKD 200,000 to HKD 500,000 per year — must be budgeted for in the post-listing compliance budget.

For the first 12 months post-listing, the sponsor must review the controlling shareholder’s compliance and report to the board. The SFC’s 2024 enforcement report noted that 2 sponsors had failed to conduct this review, resulting in the SFC issuing a warning letter under section 194 of the Securities and Futures Ordinance. The practical takeaway: the sponsor’s engagement does not end at listing; the sponsor must maintain a compliance monitoring function for the non-compete undertaking until the sponsor’s obligations under the Listing Rules expire (typically 12 months from listing).

Actionable Takeaways

1. Draft the non-compete undertaking with SIC code-level specificity, referencing the applicant’s prospectus-defined principal business activities, to avoid the HKEX’s rejection of vague “competing business” definitions.
2. Obtain independent legal opinions on enforceability from counsel in the controlling shareholder’s jurisdiction of incorporation (Cayman, BVI, Bermuda, or PRC) and file these with the sponsor’s due diligence report.
3. Set the territorial scope to “material markets” where the listed entity generates more than 10% of consolidated revenue, and include a dual-governing-law clause for PRC-controlled shareholders.
4. Budget HKD 200,000-500,000 annually for post-listing legal opinions on compliance, and assign a board committee to monitor the controlling shareholder’s activities.
5. Include a mandatory HKIAC arbitration clause in the undertaking to ensure a swift and enforceable dispute resolution mechanism, with the arbitral tribunal empowered to grant interim injunctive relief.