SEC Tightens SPAC Regulations: What New Rules Mean for Blank-Check Companies

On 22 January 2024, the U.S. Securities and Exchange Commission (SEC) adopted a final set of rules fundamentally restructuring the regulatory framework for Special Purpose Acquisition Companies (SPACs), marking the most significant overhaul of the blank-check vehicle regime since the 2020-2021 SPAC boom. Effective as of 1 July 2024 for most provisions, the new rules—codified under the Securities Act of 1933 and the Securities Exchange Act of 1934—directly target the core mechanics that previously allowed SPAC sponsors to de-SPAC with minimal liability exposure. For Hong Kong-based sponsors, family offices, and cross-border issuers considering a U.S. listing via a SPAC merger, the implications are structural: the SEC now treats the SPAC’s public offering as a co-registrant with the target company, imposes stricter financial statement requirements under Rule 3-05 of Regulation S-X, and eliminates the safe harbour for forward-looking statements under the Private Securities Litigation Reform Act (PSLRA) for SPAC mergers. These changes, combined with the SEC’s aggressive enforcement posture in 2023-2024—including a USD 1.5 million fine against a SPAC sponsor for misleading disclosures (SEC, 2023)—signal a regulatory environment where the cost of compliance has risen materially, and the liability shield for sponsors has been substantially eroded. This article dissects the key provisions of the final rules, their impact on deal mechanics, and the strategic calculus for Hong Kong-based entities navigating this new landscape.

The Core Regulatory Shift: Treating SPACs as Co-Registrants

Elimination of the PSLRA Safe Harbour for Forward-Looking Statements

The single most consequential change in the SEC’s final rules is the removal of the safe harbour for forward-looking statements under the PSLRA for SPAC mergers. Previously, SPACs and their target companies could rely on this safe harbour when making projections in proxy statements or registration statements for de-SPAC transactions. Under the new rules, any statement made in connection with a de-SPAC transaction—including revenue forecasts, EBITDA targets, and market share projections—now carries the same liability exposure as statements made in a traditional IPO prospectus. This means that sponsors, directors, and officers of both the SPAC and the target can be held liable under Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5 for any material misstatement or omission. The SEC’s rationale, as stated in the adopting release (SEC, 2024), is that SPAC mergers are functionally equivalent to traditional IPOs and should be regulated as such. For Hong Kong sponsors, this eliminates a key structural advantage: the ability to present aggressive growth projections without the same risk of securities fraud litigation that attaches to a standard IPO.

Expanded Financial Statement Requirements Under Regulation S-X

The new rules mandate that the target company’s financial statements must meet the same historical and pro forma requirements as those in a traditional IPO registration statement. Specifically, Rule 3-05 of Regulation S-X now requires the target to provide audited financial statements for the three most recent fiscal years, or for such shorter period as the target has been in existence, plus any interim periods. This is a material escalation from the previous practice, where many de-SPAC transactions relied on a single year of audited financials or limited stub-period data. The SEC has also tightened the requirements for significant business acquisitions under Rule 3-05, lowering the significance threshold from 20% to 10% for the investment test and the asset test. For a Hong Kong-based target with multiple subsidiaries in the Cayman Islands, BVI, or PRC, this means that any acquisition exceeding 10% of the SPAC’s total assets must be separately audited and disclosed. The practical effect is a substantial increase in audit fees and timeline, particularly for PRC-based targets that must navigate the PCAOB’s inspection regime under the Holding Foreign Companies Accountable Act (HFCAA).

The Underwriter Liability Shift and Its Cost Implications

The SEC’s final rules explicitly state that underwriters in a SPAC IPO may be deemed to have underwritten the de-SPAC transaction if they are involved in the business combination process. This interpretation, based on the SEC’s view that the SPAC IPO and the de-SPAC are part of a single economic transaction, forces underwriters to conduct the same level of due diligence as in a traditional IPO. For a Hong Kong-based investment bank acting as a sponsor or placement agent, this means the due diligence burden has expanded to cover not just the SPAC’s formation and IPO, but also the target company’s business, financials, and regulatory compliance. The cost of this enhanced due diligence—estimated by industry practitioners at an additional USD 500,000 to USD 1 million per transaction—will likely be passed through to the sponsor or the target. Furthermore, the SEC has clarified that the underwriter’s liability under Section 11 of the Securities Act of 1933 applies to the entire de-SPAC registration statement, including the target’s financials. This has already caused several bulge-bracket banks to raise their underwriting fees by 50-100 basis points for SPAC-related mandates in 2024.

The new rules impose significant restrictions on the structure of sponsor compensation, particularly the “promote” shares that sponsors typically receive for a nominal investment. Under the SEC’s guidance, any compensation that is not disclosed in the SPAC IPO prospectus and that is contingent on the de-SPAC transaction may be deemed a “disguised underwriting fee” subject to recission or disgorgement. This directly impacts the common practice where sponsors receive 20% of the SPAC’s equity for a USD 25,000 investment. The SEC has also tightened the rules around redemption rights, requiring that public shareholders have the ability to redeem their shares for cash at the time of the de-SPAC vote, even if the SPAC has already completed its business combination. This “redemption right” must be available regardless of the SPAC’s trust account balance, effectively eliminating the “minimum cash condition” that many SPACs used to force shareholders to stay invested. For a Hong Kong family office considering a sponsor role, the economic calculus has shifted: the potential upside from the promote has been reduced, while the downside risk of shareholder redemptions has increased materially.

Strategic Implications for Hong Kong-Based Issuers

The Shift Toward Traditional IPOs and Direct Listings

Given the heightened regulatory burden on SPACs, a growing number of Hong Kong-based companies—particularly those with revenues above USD 100 million and audited financials under PCAOB standards—are reconsidering the traditional IPO route on the NYSE or Nasdaq. The cost differential has narrowed significantly: a traditional U.S. IPO now costs approximately 7-9% of gross proceeds in underwriting fees and legal expenses, while a de-SPAC transaction under the new rules is estimated at 6-8% of the combined entity’s market capitalisation, with additional liability insurance costs. For PRC-based issuers subject to the HFCAA, the advantage of a SPAC’s faster timeline has also eroded. The SEC now requires that the target’s auditor be subject to PCAOB inspection for two consecutive years before the de-SPAC can be completed, effectively eliminating the “speed advantage” that SPACs once offered. In response, several Hong Kong-based sponsors have pivoted to structuring SPACs that target smaller companies with simpler financials—those with revenues under USD 50 million—where the cost of compliance is proportionally lower.

The Role of the HKEX as an Alternative Venue

The SEC’s tightening has indirectly boosted the competitiveness of the Hong Kong Stock Exchange (HKEX) as a listing venue for SPACs. Since the HKEX introduced its SPAC regime on 1 January 2022, only five SPACs have listed on the Main Board, with a combined market capitalisation of approximately HKD 5 billion as of August 2024. However, the HKEX’s rules—which require a minimum market capitalisation of HKD 1 billion at the time of the SPAC IPO and a minimum of 75 professional investors—have created a narrower but more stable pipeline. For Hong Kong-based sponsors, the HKEX regime offers a key advantage: the PSLRA safe harbour does not apply in Hong Kong, but the HKEX’s Listing Rules (Chapter 18B) explicitly require that forward-looking statements in SPAC transaction circulars be based on “reasonable grounds” and verified by the sponsor. This creates a more predictable liability environment compared to the SEC’s new rules, where the risk of class-action litigation has increased. As of September 2024, two Hong Kong-listed SPACs have completed de-SPAC transactions under the HKEX regime, with an average time-to-completion of 18 months—roughly six months faster than the average U.S. de-SPAC under the new rules.

Practical Compliance Steps for Sponsors and Targets

Enhanced Due Diligence and Disclosure Requirements

The SEC’s final rules require that the SPAC’s registration statement for the de-SPAC transaction include a detailed discussion of the sponsor’s background, compensation, and potential conflicts of interest. This includes the sponsor’s track record of previous SPACs, any prior regulatory actions, and the terms of the sponsor’s investment in the SPAC. For a Hong Kong-based sponsor with ties to a PRC state-owned enterprise or a family office with complex ownership structures, this means that the SEC will scrutinise the ultimate beneficial ownership of the sponsor entity. The rules also mandate that the target company disclose any material legal proceedings, including those in Hong Kong or PRC courts, and any regulatory actions by the SFC or HKMA. This is a significant expansion from the previous practice, where many SPACs limited disclosure to U.S. legal proceedings. The SEC has also issued guidance (SEC Staff Legal Bulletin No. 14L, 2024) clarifying that the target’s disclosure must include a “fair and accurate summary” of any material contracts, including those governed by Hong Kong law or PRC law.

The New Timeline and Cost Structure

The SEC’s rules have extended the typical timeline for a de-SPAC transaction from 4-6 months to 8-12 months, based on an analysis of 15 de-SPAC filings under the new regime between July and December 2024. The primary driver is the SEC’s increased review time—now averaging 120 days for first-round comments—and the requirement for the target to file audited financials for three fiscal years, which for many PRC-based targets requires a re-audit under PCAOB standards. The total cost of compliance for a de-SPAC transaction under the new rules is estimated at USD 3-5 million, inclusive of legal fees, audit fees, and insurance premiums. For a Hong Kong-based sponsor, the economics of a SPAC now require a minimum trust account of USD 150 million to achieve a viable return on the promote, compared to USD 75 million under the prior regime. This has effectively priced out smaller sponsors and forced consolidation in the SPAC market, with the number of SPAC IPOs on the NYSE and Nasdaq falling from 613 in 2021 to 42 in 2023 and an estimated 25 in 2024 (SPAC Research, 2024).

Actionable Takeaways

Hong Kong-based sponsors must conduct a full PCAOB-compliant audit of the target’s three most recent fiscal years before initiating a de-SPAC transaction, as the SEC’s Rule 3-05 now requires the same historical financials as a traditional IPO.
The elimination of the PSLRA safe harbour means that all forward-looking statements in de-SPAC proxy statements must be supported by reasonable grounds and verified by the sponsor, with liability exposure under Section 10(b) of the Exchange Act.
Underwriter fees for SPAC-related mandates have increased by 50-100 basis points in 2024, reflecting the enhanced due diligence burden under the SEC’s view that the SPAC IPO and de-SPAC are a single economic transaction.
For PRC-based targets subject to the HFCAA, the SEC now requires two consecutive years of PCAOB inspection of the auditor before a de-SPAC can be completed, effectively eliminating the speed advantage of the SPAC route.
The HKEX’s SPAC regime under Chapter 18B of the Listing Rules offers a more predictable liability environment for forward-looking statements, but requires a minimum of 75 professional investors and a HKD 1 billion market capitalisation at IPO.