SPAC Merger vs Form F-1 IPO: Vietnam US Listing Guide

For a Vietnamese company with US ambitions, the choice usually narrows to two routes: a SPAC merger or a traditional Form F-1 IPO. Each route reaches Nasdaq or the NYSE, but they differ sharply in speed, price certainty, disclosure burden and dilution. A SPAC merger offers a negotiated valuation and a faster path, yet it exposes the company to redemptions, sponsor economics and heightened SEC scrutiny.

An IPO offers a cleaner cap table but depends on market windows. This article compares both routes and the Vietnamese approvals that sit underneath either one.

Table of Contents

Table of Contents

How a SPAC Merger Works for a Vietnamese Target

A special purpose acquisition company is a listed shell that raises cash in its own IPO, holds the proceeds in a trust account and then has a fixed period, typically 18 to 36 months, to complete a business combination. The operating company becomes public by combining with that shell. Market practitioners call this the de-SPAC step, and a SPAC merger is simply the legal mechanism that delivers it.

Anatomy of a SPAC merger

For a Vietnamese target, the SPAC is usually a Cayman Islands exempted company, and the target group sits below an offshore holding company. A typical SPAC merger follows this sequence:

The sponsor and the target sign a letter of intent, then a business combination agreement that fixes the pre-money equity value, earn-out terms and closing conditions.
A merger subsidiary of the SPAC merges with the target holding company, or the SPAC merges into a new holding company, so that the target’s shareholders receive listed shares.
Because the SPAC is typically a foreign private issuer, the combined company files a registration statement on Form F-4 containing the proxy statement and prospectus, which the SEC reviews.
SPAC shareholders vote and decide whether to redeem their shares for a pro rata share of the trust account.
Closing occurs once the exchange confirms listing eligibility and minimum cash or other conditions are met.

The publicly known VinFast transaction in 2023, which combined a Vietnamese automaker’s offshore parent with a Nasdaq-listed SPAC, is the best-known reference for Vietnamese issuers. We refer to it only at that general level; each SPAC merger carries its own terms and risks.

Timeline and where it can fail

The attraction of a SPAC merger is speed and negotiated pricing. Once an agreement is signed, the SEC review of the Form F-4 and the shareholder meeting generally dominate the timetable, and many transactions have closed within roughly four to eight months of signing.

The weak points of a SPAC merger are equally clear: the target must obtain audited financial statements acceptable to the SEC, the SPAC must clear its own deadline, and the final cash raised is unknown until redemption deadlines pass. A SPAC merger can therefore be fast on paper and still fail late if redemptions drain the trust.

Form F-1 IPO Mechanics

A Form F-1 IPO is the registration route for a non-US company that qualifies as a foreign private issuer and sells its own shares, usually through American Depositary Shares, to the public. Unlike a SPAC merger, the price is set at the end of the process by underwriters and investor demand rather than by negotiation with a single sponsor.

SEC review and exchange listing

The issuer typically submits a draft registration statement confidentially, responds to SEC comment letters, then files publicly at least 15 days before the roadshow. The registration statement must include audited financial statements prepared under US GAAP or under IFRS as issued by the IASB. Vietnamese Accounting Standards are not accepted, so most Vietnamese groups need a full IFRS or US GAAP conversion audited to PCAOB standards.

In parallel, the company applies to Nasdaq or the NYSE and, if issuing ADSs, files a Form F-6 with a depositary bank. Emerging growth companies, defined by an annual revenue ceiling that the SEC adjusts for inflation, benefit from scaled financial statement disclosure.

Underwriting and book-building

Underwriters conduct due diligence, test investor appetite through meetings, build a book and price the offering. The legal opinions and comfort letters that accompany this process are demanding. In return, the company receives primary proceeds at closing, typically with a greenshoe option, and a conventional shareholder base without trust-account redemptions. The principal risk is market timing: a Form F-1 IPO can be postponed or repriced late if volatility rises.

SEC 2024 SPAC Rules: What Changed

In January 2024 the SEC adopted final rules titled “Special Purpose Acquisition Companies, Shell Companies, and Projections,” which became effective on 1 July 2024 (see the SEC announcement and the final rule release). They were designed to narrow the regulatory gap between a SPAC merger and a conventional IPO, and they apply to Vietnamese targets that choose the SPAC route.

Enhanced disclosure and projections

The rules require fuller disclosure about sponsor compensation, the securities issued to sponsors and affiliates, and the dilution that arises from the sponsor promote, warrants and redemptions. They also require disclosure on whether the SPAC reasonably believes the transaction and related financing are fair to unaffiliated shareholders, and on any outside report obtained.

On projections, the SEC updated its guidance in Regulation S-K and clarified that projections must have a reasonable basis, be presented with clear assumptions and not be given undue prominence. The rules also state that the statutory safe harbor for forward-looking statements, created by the Private Securities Litigation Reform Act, is unavailable for blank check company transactions.

A Vietnamese target in a SPAC merger that previously presented aggressive growth forecasts to SPAC investors should expect hard questions from both the SEC and plaintiffs.

Sponsor conflicts and target co-registrant liability

The rules also require detailed disclosure of conflicts of interest, including sponsor and director incentives that may diverge from those of public shareholders. The target company must now be a co-registrant on the registration statement for a de-SPAC transaction, and its directors and officers sign it, so they carry liability under Section 11 of the Securities Act, as in an IPO.

Finally, the SEC issued guidance on the Investment Company Act status of SPACs that hold trust assets for extended periods. In practice, a SPAC merger now demands diligence and disclosure discipline close to that of an IPO.

Redemptions, PIPEs and Dilution

The most underestimated feature of a SPAC merger is that the cash in the trust is not committed capital. Public shareholders can vote for a SPAC merger and still redeem. Redemption levels in many 2022 and 2023 transactions were very high, in numerous cases above 80 percent of the trust, which is why sponsors lined up supplementary funding.

How SPAC redemption reshapes the deal

SPAC redemption leaves the company with less cash and a smaller free float, while the sponsor’s founder shares and any warrants remain outstanding. The percentage of the combined company owned by the target’s holders can therefore stay stable while the cash per share actually delivered falls. Minimum cash conditions protect the target but give redeeming holders leverage, and non-redemption agreements or sponsor concessions are sometimes offered to bridge shortfalls.

Vietnamese founders considering a SPAC merger should model their ownership at 0 percent, 50 percent and 90 percent redemption rather than at the headline trust value.

PIPE financing and layered dilution

PIPE financing, a private placement of shares to institutions or strategic investors that closes alongside the merger, is the usual fix for redemptions. It is useful but costly: PIPE investors often demand discounted prices, warrants or convertible features, and each of these adds dilution. In a SPAC merger, sponsor promote, public warrants, earn-out shares and PIPE securities can together reduce the effective value received by the legacy shareholders to well below the headline equity value.

A responsible comparison with a Form F-1 IPO needs a fully diluted bridge, not only the pre-money figure in the term sheet.

Vietnamese Approvals for the Offshore Holdco

Whichever route is chosen, a US listing almost always requires an offshore parent above the Vietnamese operating companies. Creating that parent and moving Vietnamese equity to it raises Vietnamese investment, foreign exchange and tax questions that should be resolved before the US process begins.

Outbound investment, SBV and Ministry approvals

Under the Law on Investment 2020 and its implementing decree, a Vietnamese investor that sets up an offshore entity or injects capital abroad generally needs an overseas investment registration certificate. For projects above statutory capital thresholds, or in sensitive sectors such as banking, insurance, securities and media, an investment policy approval from the Government or the National Assembly may be required first.

Following the 2025 governmental restructuring, the functions of the former Ministry of Planning and Investment now sit with the Ministry of Finance, so applicants should confirm the competent authority and current forms. Once the certificate is issued, capital transfers must run through a designated account at an authorised Vietnamese bank, and the State Bank of Vietnam’s foreign exchange rules, including its circular on outbound investment, govern remittances and profit repatriation.

Where individuals hold the Vietnamese operating company, the transfer of their shares to the holdco also raises residency, tax and capital gain questions, and indirect transfer rules may apply. Verify current thresholds and procedures at the time of filing.

Cayman and BVI Structuring Without a VIE

A Cayman holdco is the dominant structure for both routes. A British Virgin Islands company is a common alternative, particularly for intermediate or founder holding vehicles.

Why Cayman and BVI holding companies

A Cayman holdco gives familiar corporate law, flexibility for dual-class shares, tax neutrality and acceptance by US exchanges, investors and counsel. BVI entities are quick and inexpensive to form but are generally better suited to personal holding structures. Both jurisdictions now apply economic substance requirements and beneficial ownership regimes. Intermediate holding companies in Singapore or Hong Kong add cost and Vietnamese tax analysis.

VIE-free structuring for Vietnam

Unlike some Chinese issuers, Vietnamese businesses should avoid variable interest entity arrangements. A VIE is a contractual structure used to access sectors closed to foreign ownership, and Vietnamese law has no established framework recognising it; US regulators have also made clear that investors must understand the associated risks. A cleaner approach is direct equity ownership: the Cayman holdco acquires shares in the Vietnamese company through the standard share-purchase or capital-contribution registration procedure.

If the sector has a foreign ownership cap or market-access condition under the Law on Investment and Vietnam’s WTO and trade agreement commitments, the listing structure should respect it rather than circumvent it. Where a business is in a restricted sector, a carve-out of the restricted activity, a minority foreign stake or a different listing venue is usually wiser than a contractual workaround.

Valuation and Cost Comparison

Valuation in a SPAC merger is negotiated and can look generous, but the effective SPAC merger valuation after dilution is lower. In a Form F-1 IPO, valuation is determined by comparable company analysis and investor demand, with a customary IPO discount. Costs also differ. Underwriting fees in a conventional IPO are typically a single-digit percentage of proceeds, paid at closing.

In a SPAC merger the costs are spread: deferred underwriting fees from the SPAC’s own IPO, advisory and legal fees, PIPE placement fees, and the economic cost of the sponsor promote. The table below summarises the comparison.

Factor	SPAC merger	Form F-1 IPO
Pricing	Negotiated with sponsor; later adjusted by dilution	Set at pricing by underwriters and investor demand
Typical timeline	Often about 4 to 8 months from signing	Often about 6 to 12 months, market dependent
Cash certainty	Uncertain until redemption deadline; PIPE often needed	High once priced and closed
Dilution	Promote, warrants, earn-outs, PIPE terms	New shares and greenshoe only
SEC document	Form F-4 (or similar) with 2024 SPAC rule disclosures	Form F-1 plus Form F-6 for ADSs
Liability profile	Target co-registrant; no forward-looking safe harbor	Standard Section 11 and 12 exposure
Main risk	Redemptions and post-closing trading weakness	Market window and weak book

Neither route is inherently cheaper, and a SPAC merger is not a shortcut around diligence. A well-funded, profitable issuer with audit-ready accounts often finds the Form F-1 IPO more efficient. A growth company that needs a negotiated valuation and sponsor support may still prefer a SPAC merger, provided the dilution analysis is honest.

Post-Listing Compliance: FPI Status and SOX

A Vietnamese issuer that keeps foreign private issuer status benefits from lighter reporting. It files an annual report on Form 20-F within four months after year end, furnishes material events on Form 6-K, and is exempt from the proxy rules, Section 16 insider reporting and quarterly Form 10-Q filings. It may also follow certain home-country corporate governance practices on the exchange, subject to disclosure.

Foreign private issuer status is tested annually: if more than 50 percent of voting securities are held by US residents, and a majority of executive officers or directors are US citizens or residents, or more than half of assets are in the United States, or the business is administered mainly in the United States, the company loses it and must file as a domestic issuer.

SPAC redemption — Photo: Wikimedia Commons (public domain / CC0)

The Sarbanes-Oxley Act applies in full to foreign private issuers listed in the United States. This includes CEO and CFO certifications, audit committee independence requirements, and management’s assessment of internal control over financial reporting, with auditor attestation once the company is no longer an emerging growth company. For many Vietnamese groups, building IFRS or US GAAP reporting capacity, an internal audit function and an independent audit committee is the largest post-listing task.

Companies that completed a SPAC merger also face former-shell-company rules that temporarily limit the use of Rule 144 and Form S-8, so equity compensation planning needs care.

Choosing Between a SPAC Merger and an IPO

A practical decision framework starts with readiness. If audited IFRS or US GAAP accounts, governance and a credible equity story already exist, a Form F-1 IPO is generally the better-aligned path. If the company needs price visibility, strategic sponsors or a faster timetable, and accepts dilution and execution risk, a SPAC merger deserves serious evaluation.

Either way, the Vietnamese steps are the critical path: outbound investment registration, foreign exchange compliance, tax-efficient restructuring and the Cayman holdco design should begin before a bank or sponsor is engaged, so that the US timetable is not held hostage to Vietnamese approvals.

Considering a US listing? IVLF Advisors LLC offers a confidential preliminary consultation on route selection, holdco structuring and Vietnamese approvals. Our capital markets team and mergers and acquisitions team work together on cross-border listings.

Frequently Asked Questions

Is a SPAC merger faster than a Form F-1 IPO?

Usually, once the agreement is signed, but not always. Audit readiness, SEC comments and redemption outcomes drive timing. Preparing IFRS or US GAAP financials and Vietnamese approvals often takes longer than either US process.

Do the 2024 SEC SPAC rules apply to Vietnamese companies?

Yes. They apply to any SPAC merger registered with the SEC, including foreign targets. The target becomes a co-registrant, and projections and sponsor disclosures face closer scrutiny.

Can a Vietnamese company list directly, without an offshore holdco?

Practically, no. US exchanges and investors expect a foreign private issuer holding company, commonly a Cayman entity. Vietnamese operating companies are normally held beneath it after the required investment approvals.

Is a VIE structure acceptable for Vietnam?

It is not recommended. Vietnamese law has no recognised VIE framework, and US disclosure rules highlight its risks. Direct equity ownership within foreign ownership limits is the safer approach.

Does a SPAC merger avoid Sarbanes-Oxley compliance?

No. After a SPAC merger closes, the company is a US-listed issuer and must comply with Sarbanes-Oxley certifications, audit committee rules and internal control requirements, even if it keeps foreign private issuer status.

Next step: assemble a short readiness file covering audited accounts, shareholder structure, sector licences and intended offshore holdco, and request a confidential preliminary consultation with IVLF Advisors before approaching any sponsor or underwriter about a SPAC merger or IPO.

Disclaimer: This article provides general information only and is not legal, tax, financial or investment advice. Laws and market practice change; seek advice on your specific circumstances. References to public precedents are general and do not describe any deal terms.