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The material adverse change (MAC) clause under Dutch law

Material adverse change clause in Dutch M&A

A material adverse change (MAC) clause, also referred to as a material adverse effect (MAE) clause, is a provision in a share purchase agreement or merger agreement that protects the buyer against a significant deterioration in the target under Dutch contract law in the target's business, financial condition or prospects between signing and closing. Under Dutch law, MAC clauses are interpreted restrictively: Dutch courts and arbitral tribunals set a high threshold for what qualifies as a MAC, and buyers who seek to invoke the clause face a demanding burden of proof.


What is a MAC clause and how does it work under Dutch law?

A MAC clause may operate either as a condition precedent to closing or as a warranty. As a condition precedent, it gives the buyer the right to refuse completion if a MAC has occurred. As a warranty, breach entitles the buyer to damages after completion.

As a condition precedent, a MAC clause typically states that the buyer's obligation to complete the acquisition is conditional on no material adverse change having occurred in the target's business between signing and closing. If the buyer determines that a MAC has occurred, it may decline to complete and seek to recover its costs. As a warranty, the seller warrants at signing and repeats at closing that no MAC has occurred; breach gives the buyer a damages claim but does not necessarily allow it to walk away from the deal.

In Dutch M&A practice, MAC clauses are more commonly drafted as warranty qualifications than as standalone closing conditions, though both forms appear in transactions. The Dutch Supreme Court and courts of appeal have not yet produced a definitive body of case law on MAC clauses comparable to the Delaware Court of Chancery, but Dutch practitioners draw extensively on foreign jurisprudence when advising clients.


What is the threshold for invoking a MAC clause under Dutch law?

Dutch courts interpret MAC clauses narrowly and set a high threshold for invocation. Short-term setbacks, market-wide downturns, or changes that were foreseeable at signing will generally not qualify as a MAC.

The Haviltex standard, which governs the interpretation of all Dutch contracts, requires courts to ask what the parties reasonably understood the MAC clause to mean in the specific context of the transaction. Dutch legal doctrine and practice hold that a MAC must be substantial, durable, and specifically targeted at the target's business, not a general market development that affects all comparable companies.

A temporary decline in earnings, a short-term loss of a customer, or a market-wide deterioration in conditions will typically not meet this threshold. The change must be of such a character that a reasonable buyer, had it known of the change at signing, would not have entered into the transaction at the agreed price. This is a demanding standard, and buyers who attempt to invoke a MAC clause to exit a deal that has become less attractive for extraneous reasons will face significant legal risk under Dutch law.


What are the standard exclusions from MAC clauses in Dutch M&A contracts?

Sellers in Dutch M&A transactions negotiate extensively to include exclusions from the definition of MAC, ensuring that general economic risks and industry-wide developments do not allow the buyer to exit.

Standard exclusions from a Dutch M&A MAC clause include: general economic conditions; changes in financial markets, interest rates or currency exchange rates; industry-wide developments that affect the target's sector generally; changes in applicable law or regulation; geopolitical events, acts of war or terrorism; pandemics or natural disasters; and changes resulting from the announcement of the transaction itself. Sellers also seek to exclude the effect of any action taken by the target at the buyer's request.

Each of these exclusions may be subject to a carve-back provision: even if an exclusion applies, it does not protect the seller if the relevant development has had a disproportionate adverse effect on the target compared to its peers. This "disproportionate impact" carve-back restores some of the buyer's protection where a general risk materialises in a way that specifically and severely damages the target.


How do MAC clauses relate to onvoorziene omstandigheden under Dutch civil law?

MAC clauses in Dutch law contracts interact with the statutory concept of onvoorziene omstandigheden (unforeseen circumstances) under Article 6:258 of the Dutch Civil Code, which allows a court to modify or dissolve a contract where circumstances have changed beyond what the parties could reasonably have anticipated.

Where a signed SPA does not contain a MAC clause, or where the MAC clause does not cover the event that has occurred, a buyer facing a catastrophic deterioration of the target's business may seek relief under Article 6:258 of the Dutch Civil Code. This provision allows a court to modify or dissolve the contract where unforeseen circumstances have arisen that are so serious that the counterparty cannot reasonably expect performance to continue unchanged. The threshold under Article 6:258 is very high, and Dutch courts are extremely reluctant to interfere with freely negotiated commercial agreements. Nevertheless, the provision operates as a residual safety valve in extreme situations.

Consulting a contract lawyer in the Netherlands experienced in M&A is essential both when drafting MAC clauses at the time of negotiation and when assessing whether a MAC has occurred and whether it can be validly invoked.


How should a MAC clause be drafted in a Dutch M&A contract?

Precise drafting of the MAC clause is essential. An imprecise or ambiguous clause will be interpreted by Dutch courts under the Haviltex standard and, given the restrictive approach, is likely to be construed against the party seeking to invoke it.

The definition of MAC should describe the threshold for invocation in measurable terms where possible, for example by reference to a defined percentage decline in EBITDA, revenue, or net assets sustained over a minimum period. A vague reference to a "material adverse effect on the business, financial condition or prospects" without further parameters leaves significant room for dispute and litigation. Where the transaction involves known sector-specific risks, these should be addressed expressly in either the definition of MAC or in the exclusion list.

The exclusions should be listed exhaustively and tailored to the specific transaction and industry. Generic boilerplate exclusions may fail to capture the particular risks relevant to the target. The SPA should also expressly address the burden of proof, the notification procedure, and the consequences of wrongful invocation. Invalid invocation of a MAC clause exposes the buyer to a damages claim for wrongful refusal to complete under Dutch law, including the seller's loss of bargain. Parties are strongly advised to engage a Dutch contract lawyer with dedicated M&A experience at the drafting stage rather than seeking to repair an inadequate clause once a dispute has arisen.


Do MAC clauses appear in Dutch credit and financing agreements?

MAC clauses are not confined to share purchase agreements. They are a standard feature of Dutch and international credit agreements, where they function both as a condition to utilisation of a credit facility and as a potential event of default.

In a credit agreement subject to Dutch law, a MAC clause typically appears in two places. First, as a condition precedent to each drawdown: the borrower must represent at each utilisation date that no MAC has occurred since the date of the agreement. Second, as an event of default: a material adverse change in the borrower's financial condition or ability to perform its obligations entitles the lender to accelerate the facility and demand immediate repayment.

The Loan Market Association (LMA) standard form credit agreements, widely used in Dutch syndicated lending transactions, contain a MAC event of default provision. Dutch courts have applied the same restrictive interpretive approach to MAC events of default in credit agreements as to M&A MAC clauses: the change must be significant, durable, and specifically targeted at the borrower's repayment capacity, not a general market deterioration affecting the borrower's sector. Lenders who seek to invoke a MAC event of default on the basis of a temporary financial setback risk a finding that acceleration was wrongful, entitling the borrower to a damages claim under Dutch law. The interaction between MAC events of default and the general Dutch law principles of good faith and the prohibition on abuse of rights (misbruik van bevoegdheid) under Article 3:13 of the Dutch Civil Code is a recurring issue in Dutch financing disputes.

Frequently asked questions about the MAC clause in Dutch M&A

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