A MAC clause is the lender’s emergency exit and the borrower’s most unpredictable risk. When a pandemic closes borders or a geopolitical shock freezes funding markets, both sides reach for the contract and discover that a MAC clause, a force majeure clause and the statutory hardship rules answer different questions. For a cross-border loan to a Vietnamese borrower, the picture is more complex still, because English-law drafting meets Vietnamese mandatory law.
This article explains how the tools differ, how to draft them, and how disputes are likely to play out.
Why the MAC Clause Matters in Cross-Border Loans to Vietnam
Most cross-border loan and bond documents for Vietnamese obligors are governed by English or New York law, arranged by international or regional banks, and supported by security or guarantees that are governed by Vietnamese law. That split creates the first practical lesson: the MAC clause may be drafted in London style, but its consequences are felt in Ho Chi Minh City and Hanoi, where the borrower’s assets, licences and cash flows sit.
What lenders are really protecting
A MAC clause lets a lender refuse to fund, or call a default, when the borrower’s position deteriorates in a way the credit paper did not price. Lenders use it as a backstop to the financial covenants, which are tested only periodically and often lag the real situation. In emerging markets such as Vietnam, where information is less transparent and regulatory change can be rapid, lenders tend to insist on a broad MAC clause.
Where borrowers feel the pressure
For the borrower, the danger is that a vaguely worded MAC clause converts a committed facility into a revocable one. A project company midway through construction can lose access to undrawn funds exactly when it needs them. That is why the MAC clause is among the most negotiated provisions in any cross-border loan, and why borrowers should treat it as a core commercial term and not a boilerplate item.
Anatomy of a MAC Clause: Drafting the Trigger
A typical MAC clause (often called a material adverse effect or MAE clause) is built from three parts: the subject matter that must be affected, the standard of adversity, and the reference point against which change is measured. Each part deserves attention because the wording decides who wins a dispute.
Objective versus subjective MAC clause tests
An objective MAC clause asks whether a material adverse change has in fact occurred. A subjective MAC clause asks whether, in the opinion of the lender or the majority lenders, it has occurred. The subjective form is more lender-friendly, although English courts and, by analogy, Vietnamese courts expect discretion to be exercised honestly and not arbitrarily. Borrowers should push for an objective test, or at least a requirement that the opinion be reasonable and supported by written reasons.
Carve-outs and reference points
The wording should state what must be affected. Common formulations cover the business, assets or financial condition of the borrower or the group, its ability to perform payment obligations, or the validity and enforceability of the finance documents and security. Lenders prefer a wide list; borrowers prefer to limit it to the ability to pay. The reference date matters as well: a change measured against the last audited accounts behaves very differently from one measured against the signing date.
Borrowers should also negotiate carve-outs for general market or industry conditions, changes in law of general application, and disclosed matters, unless they hit the borrower disproportionately. In Vietnam, where a decree or circular can change foreign exchange or land rules at short notice, whether regulatory change counts as a material adverse change is a point to settle expressly. Equally, a MAC clause should state whether it is a drawdown condition, an event of default, or both, because the consequences differ sharply.
Force Majeure in Vietnam: Civil Code Article 156 and Commercial Law Article 294
Force majeure Vietnam analysis starts with statute. Article 156 of the Civil Code 2015 defines force majeure (sự kiện bất khả kháng) as an objective event that cannot be foreseen and cannot be remedied despite the application of all necessary and permissible measures. Article 351 of the same Code then relieves a party from liability for non-performance caused by force majeure.
Article 294 of the Commercial Law 2005 lists the grounds for exemption from liability in commercial contracts, including force majeure, and sits alongside Articles 295 and 296 on proof and notice (verify article numbering against the current consolidated text before citing).
Elements of force majeure
A claimant must show three things: the event is objective, it was unforeseeable at signing, and it could not be overcome despite all permissible measures. A lender or borrower who foresaw the risk, for example a pandemic after the first outbreak was public, will struggle to satisfy the second limb. The parties may also define force majeure events by agreement.
Notice and burden of proof
Under the Commercial Law, the party relying on an exemption bears the burden of proving it and must give prompt notice to the counterparty (verify the current text of Articles 295 and 296). Failure to notify can cost the party the right to claim exemption for the loss that notice would have avoided. In practice that means a borrower facing a disruption should document the event, the causal link to its inability to pay or perform, and every mitigation step taken, in a contemporaneous file.
A critical limit: a money debt is rarely excused by force majeure. Vietnamese commentary is not uniform, and the Civil Code deals separately with late-payment interest, but a court is unlikely to be sympathetic where the borrower still holds funds and merely faces difficulty, as opposed to impossibility, in transferring them. Treat any argument that force majeure suspends repayment as high-risk (verify with counsel).
Hardship under Civil Code Article 420
The hardship Civil Code mechanism is found in Article 420, which addresses a fundamental change of circumstances (thay đổi cơ bản hoàn cảnh). It is narrower than many borrowers hope but broader than force majeure in one respect: performance remains possible, only far more burdensome.
As we read Article 420 (verify the conditions against the current text), the change must arise from objective causes after the contract was made; it must have been unforeseeable when the contract was made; it must be so substantial that the parties would not have contracted, or would have contracted on very different terms, had they known; continued performance on the original terms would seriously harm one party; and the disadvantaged party must have taken all necessary measures within its capacity and still be unable to prevent or reduce the effect.
The affected party may then request renegotiation within a reasonable time. If the parties cannot agree, either may ask a court to terminate or amend the contract, and the parties must continue performance while the dispute is pending, unless they agree otherwise.
For lenders, Article 420 is a risk: a borrower could invoke it to seek restructuring. For borrowers, it is a statutory lever but a slow one that depends on a court or arbitral tribunal applying Vietnamese law. Whether Article 420 applies at all to an English-law loan is doubtful, and many facility agreements add a clause excluding or limiting statutory rebalancing rights to the extent permitted.
MAC Clause, Force Majeure and Hardship Compared
The three tools are often confused. The table below summarises how they differ in practice for a cross-border loan.
| Feature | MAC clause | Force majeure (Civil Code Art. 156; Commercial Law Art. 294) | Hardship (Civil Code Art. 420) |
|---|---|---|---|
| Source | Contract only | Statute and contract | Statute, sometimes contract |
| Who invokes it | Usually the lender | Usually the borrower | The disadvantaged party, usually the borrower |
| Trigger | Deterioration defined in the document | Objective, unforeseeable, unavoidable event | Fundamental, unforeseeable change making performance seriously burdensome |
| Effect | Draw-stop, default, acceleration | Exemption from liability, often suspension | Renegotiation, then court amendment or termination |
| Burden of proof | Lender, normally | Party claiming exemption | Party seeking relief |
| Typical weakness | Vagueness and litigation risk | Money debts rarely excused | Slow, uncertain, court-dependent |
LMA-Style Market Disruption and Illegality Clauses
Loan Market Association (LMA) style facilities rarely contain a free-standing force majeure clause. Instead they distribute risk through specific provisions, and borrowers should understand each one because they can operate where a MAC clause does not.
First, the market disruption clause: where lenders can show that the cost of funds exceeds the agreed margin benchmark, the borrower may face a substitute rate. Second, the illegality clause: if it becomes unlawful for a lender to perform or fund, that lender can cancel its commitment and require prepayment. In a Vietnam context, a change in foreign exchange rules or a sanctions-related measure could engage this provision.
Third, the disruption event clause covers failures of payment or communication systems and usually grants a grace period to the borrower, with no default if the failure is technical and not caused by the party. Finally, increased costs, tax gross-up and sanctions clauses allocate regulatory and tax shocks.
These clauses are narrower and more predictable than a general MAC clause, which is why borrowers often argue that the specific clauses should displace a broad MAC clause for the risks they address.
English-Law Agreements and Vietnamese Law: The Interplay
When a Vietnamese borrower signs an English-law loan, three layers interact: the governing law of the contract, the mandatory rules of Vietnam, and the forum that decides the dispute.
Choice of law and mandatory rules
Vietnamese conflict rules generally respect a choice of foreign law in contracts with a foreign element (see Civil Code 2015, Part Five, including Article 683; verify), subject to public policy and mandatory provisions. Under English law, force majeure is purely contractual and the doctrine of frustration is applied very narrowly; a court will not rescue a borrower from a bad bargain.
The English courts also generally interpret a MAC clause restrictively and place the burden of proving a material adverse change on the party relying on it, and they require the change to be more than temporary. Vietnamese Articles 156 and 420 are therefore unlikely to supplement an English-law loan unless the dispute is heard in Vietnam and the court treats the provisions as mandatory (an unsettled point).
Foreign exchange and SBV registration
Vietnamese foreign-exchange rules add a practical constraint. Medium and long-term offshore borrowings by enterprises must be registered with the State Bank of Vietnam (see Circular 03/2016/TT-NHNN, as amended; verify the current regime), and changes to key terms generally need an amended registration. A waiver, repricing or restructuring negotiated after a shock therefore carries a regulatory step that can delay relief. Borrowers should build that lead time into any standstill or amendment timetable, and lenders should expect it.
On enforcement, an English judgment is not automatically recognised in Vietnam, so most Vietnamese-facing facilities choose arbitration (commonly in Singapore or Hong Kong) so that the award can be enforced under the 1958 New York Convention, to which Vietnam is a party. Our dispute resolution team regularly advises on how these forum choices affect the real value of a MAC clause or hardship defence.
Lender Remedies: Draw-Stop and Acceleration
Lender remedies in a cross-border loan are ordered by severity. The first tool is the draw-stop, the second is acceleration, and the third is enforcement of security and guarantees. A careful lender chooses the lightest remedy that protects its position.
Draw-stop and conditions precedent
Before each drawdown the borrower repeats representations and confirms that no default is continuing. If a MAC clause forms part of an event of default or a repeating representation, the lender can decline a drawing request. This is the most common use. Lenders should document the factual basis for the decision at the time and reserve their rights in writing; borrowers should respond promptly, demand reasons, and avoid conduct that appears to accept a default.
Acceleration and cross-default
Acceleration, cancelling commitments and declaring all amounts immediately due, is the most drastic of the lender remedies. Because a wrongly invoked MAC clause can itself be a repudiatory act, lenders typically combine it with a clear payment default or covenant breach. Cross-default and cross-acceleration across a group of Vietnamese companies can spread a single shock widely, so borrowers should negotiate thresholds, grace periods, and remedy periods.
Where security is governed by Vietnamese law, enforcement also depends on registered security and the cooperation of local registries, which makes a prompt dialogue with local counsel essential. For structuring advice on these points, see our banking and finance practice.
Borrower Protections and Negotiation Points
Experience from the pandemic and from later geopolitical shocks, described here only in general terms, teaches that disputes rarely begin with litigation. They start with a lender reserving its rights, a borrower requesting a waiver, and a period of standstill. Documents that anticipate that conversation produce better outcomes for both sides.
Lessons from pandemic and geopolitical shocks
Three themes recur. First, clauses that required lenders to act reasonably and to consult before invoking a MAC clause reduced disputes. Second, borrowers who documented causation and mitigation could negotiate relief far more easily than those who simply asserted force majeure. Third, lenders who treated a shock as a sector-wide event usually offered temporary covenant resets, because mass acceleration would have destroyed value for everyone.
Practical negotiation points for borrowers include the following. Limit the MAC clause to the borrower’s ability to pay and the enforceability of the documents. Require an objective test or a reasonableness standard. Exclude general market, industry and law changes unless disproportionate. Add notice and a cure or consultation period of, for example, 10 to 30 business days before an event of default arises. Confine the clause to drawdown conditions once the facility is substantially drawn.
Clarify that a draw-stop does not itself accelerate the loan. Add a disclosure schedule so that known matters cannot later be said to cause a MAC. And agree a clear approach to Vietnamese regulatory change and foreign-exchange availability.
Frequently Asked Questions
Can a Vietnamese borrower rely on force majeure to avoid repaying a loan?
Rarely. Force majeure excuses non-performance caused by an unforeseeable, unavoidable event, but courts treat money debts strictly. It may justify delay in some circumstances, not cancellation of the debt. Seek advice before suspending payment.
Is a MAC clause enforceable under Vietnamese law?
Generally yes, as a contractual agreement under the freedom-of-contract principle, subject to good faith and public policy. A vague or arbitrary invocation may be challenged, so lenders should record objective grounds.
Who bears the burden of proof for a MAC?
Normally the lender, as the party relying on the clause. Under English law the standard is demanding. For force majeure, the party claiming exemption must prove it and give timely notice.
Does Article 420 apply to an English-law loan?
Doubtful. Article 420 is a Vietnamese statutory rule and an English governing law would usually displace it, unless a Vietnamese court treats it as mandatory. Many agreements exclude it expressly.
Can a lender stop funding without accelerating?
Yes. A draw-stop only declines new drawings if conditions precedent are unmet, for instance because a MAC clause event is continuing. Acceleration requires a separate contractual right to call the debt.
Speak to IVLF Advisors LLC
If you are negotiating a cross-border loan or facing a disruption event in an existing facility, our team offers a confidential preliminary consultation to review your MAC clause, force majeure and hardship position.
Next step: pull your facility agreement or term sheet and mark every MAC, illegality, market disruption and force majeure provision, then ask your counsel to test each against the current Vietnamese rules before the next drawdown request.
Disclaimer: This article provides general information only and does not constitute legal, tax or financial advice. Laws and regulations change, and statutory references marked “verify” should be confirmed against current official texts, including those on the national legal database and the model documentation of the Loan Market Association, before reliance.
This article is provided for general information only and does not constitute legal advice for any specific case. Regulations may change – please consult a qualified professional before acting. Should further analysis be required, please contact one of our lawyers below.
