In mergers and acquisitions (M&A), a Non-Disclosure Agreement (NDA), is not just a paperwork but a critical legal and strategic foundation to protect the seller's business and at the same time protect the buyer's investment strategy. NDAs mark the beginning of an in-depth due diligence process where parties share sensitive information.
Serious and prudent compliance and enforcement of NDAs not only protects the assets and competitive advantages of the enterprise, but also creates a solid foundation for post-M&A business development and expansion.

1. Confidentiality agreement and key contents
The NDA is a legally binding contract that stipulates the obligation of the receiving party to keep the information confidential and not to provide the information to any other third party[1]. In the sequence of preliminary documents of a typical M&A transaction, an NDA is usually the first document to be signed. This creates a reliable basis for parties to share information in a reasonable and proactive manner, thereby facilitating risk analysis and assessment. Without an NDA, the seller would have no basis to disclose confidential data, an important basis for the buyer to make accurate and efficient decisions.
NDAs are signed at the earliest stages of the deal, before there is any formal commitment to pricing or transaction structure. This is paramount because even information about the "negotiation" and "agreement on the expected transaction" are considered confidential information. In this way, NDAs help the seller tightly control the spread of information, avoiding being "in the crosshairs" or causing unwanted market fluctuations before a formal agreement is signed.
A typical NDA usually has the following main contents:
Firstly, determine the scope of confidential information, the extent and subjects of access to confidential information
An NDA generally defines "Confidential Information" and excludes information that is not considered confidential such as information that has been made public, known in advance by the recipient, or lawfully received from a third party. The NDA restricts the recipient to using confidential information "solely for the purpose of evaluating potential transactions and for no other purpose." Buyers often want to avoid overly broad usage restrictions, for example, they may object to phrases such as "... and must not be used in any way that is detrimental to the supplier", for fear of alleged infringement if they are doing business in the same industry. The NDA also stipulates restrictions on the parties such as requiring the recipient of confidential information not to disclose confidential information to anyone other than the relevant representatives (employees, legal advisors, financial partners, etc.) necessary to participate in the evaluation of the transaction. The buyer will want to ensure that all of their supporters (advisory teams, sponsoring banks, etc.) have access to confidential information under the NDA, usually by signing a "commitment to participate" addendum to the NDA. At the same time, the NDA requires these representatives to also keep confidentiality through signing sub-agreements or binding through labor/service contracts.
Second, the term and terms of termination of the agreement
The NDA clearly stipulates the normal confidentiality obligation period from 1 to 3 years from the time of signing and the obligation to return or destroy documents upon the unsuccessful conclusion of negotiations. The seller usually wants a long deadline and requires a thorough cancellation/return of the document, while the buyer wants a shorter term. Practice shows that many NDAs allow the recipient to keep an archive in a backup system or retain information if necessary to anticipate claims related to NDAs. The NDA also sets a clause that allows disclosure as required by law. This means that if the recipient is required to provide information to a court, regulator, or by stock exchange regulations, they have the right to disclose it after notifying the provider. This provision must cover both the recipient's representation and the disclosure of transaction information (which the two parties are negotiating) if required by law.
Thirdly, regulations on handling violations if they arise
If an NDA breach occurs, such as in the case of the recipient or representative disclosing or misusing confidential information, the disclosing party may not be able to prove damages easily. Therefore, NDAs often have a clause that allows the informant to seek equitable remedies, such as a court injunction, without proving actual damages and without having to make a deposit. The buyer often tries to exclude the obligation to compensate for consequential, special or punitive damages in order to minimize the risk of excessive compensation if the breach is missed. The agreement may state that the only remedy for the violation is a prohibition/deterrent, not a monetary claim.
In addition to the above important provisions, the NDA also has other provisions such as a non-compete clause to prevent the other party from involving the company's personnel and key employees, the provision for the return and destruction of confidential information, and other special provisions (if any) of the deal.
2. Types of NDAs and their strategic role in protecting competitive advantage
There are two main types of NDA: unilateral, which is common when only the seller provides information to the buyer e.g. the sale of a subsidiary, the sale of assets, and mutual when both parties disclose information to each other as in a joint venture, or the large buyer also asks the seller to provide information to assess solvency. or "add-on acquisitions".

The strategic role of NDAs goes beyond a mere legal framework to protect information ownership. It is the foundational tool for maintaining a competitive edge and managing risk from the start.
Protecting Core "Intangible Assets"
In M&A, the parties exchange sensitive information that shapes the value of the business, including:
Financial data: Includes undisclosed forecasts, plans, and internal business results.
Business strategy: Market expansion plans, research and development (R&D) projects.
Client and personnel list: These are important intangible assets that, if disclosed, can directly erode the value of the target company.
NDAs are designed to protect this information. Clearly defining "Confidential Information" in an NDA is the first step to avoiding legal risks later on. Identified confidential information may include any data marked as confidential, except in exceptional circumstances such as information that has been made public or required to be disclosed as required by law or a court order.
Optimize the Due Diligence Process
In-depth due diligence is the process by which the buyer comprehensively assesses the business, financial, and legal situation of the target company. Due to the nature of the risk, the seller should ensure that the information is used only for the purpose of "evaluating and negotiating the proposed transaction".
The NDA details the "Obligations of the recipient," including restricting the use of information only internally and for the agreed purpose. This allows the seller to confidently provide detailed records, a foundational activity so that the buyer can accurately price and minimize the potential risk of buying.
3. Challenges in the negotiation process
Despite being a preliminary agreement, the terms of the NDA are the result of a clear conflict of interest between the Buyer and the Seller, reflecting the relative negotiating strength of each party. The Seller and the Buyer approach the transaction from different perspectives:
|
Side |
Objectives in NDAs |
Negotiation strategy |
|
Seller |
The seller always wants to protect the information as broadly as possible. Many cases define confidential information including the ongoing negotiations (sometimes referred to as "Transaction Information"), the identity of the parties, the terms offered,... The seller prefers a long or indefinite period of confidentiality for trade secrets. The seller tends to only allow the disclosure of information to those who absolutely need it and even ask for their listing or approval for some of the parties the buyer intends to share. |
Require NDAs to be as detailed as possible to protect information; impose strict cease-and-desist clauses and no-recruit clauses. |
|
Buyer |
Buyers often want to limit the scope of NDAs as narrowly as possible. Therefore, the buyer often desires a narrow definition of confidential information, exemptions of various types (public information, self-discovery by the buyer, etc.), short term period, allowing flexible use of information. The buyer also wants to be allowed to disclose information to many related parties (their major shareholders, lending banks, co-investors, etc.) without having to ask for separate permission. If the buyer is a company in the same industry, they are even more careful so that the NDA does not bind them in future business activities. |
Seek an exception to the NDA for the right to use the information in due diligence; against terms limiting the ability to buy and sell. |
4. Consequences of NDA violations
Violations of NDAs, although occurring at an early stage of the transaction, can lead to severe, protracted, and costly legal consequences, not just financial compensation.
An NDA breach is a breach of contract, which can lead to disputes and claims for damages. In some cases, if NDAs do not have clear internal oversight and power control mechanisms, legal risks can be latent and flare up after the transaction is completed. In addition to having to compensate the injured party, the violating party also loses its competitive advantage. It can be said that the biggest consequences of the violating party are the loss of the right to use the property, damage to the reputation, and facing protracted disputes. NDAs generally stipulate that cash damages are insufficient to remedy the consequences of the violation. Due to the sensitive nature of confidential information, the parties have the right to seek remedies, such as an emergency injunction from the court such as a request to prevent the initial or future infringement and to request the infringing party to destroy the documents that have been disclosed.
A Confidentiality Agreement is an indispensable tool that shapes both the process and the outcome of an M&A deal. In addition to protecting trade secrets, NDAs establish a trusted environment for negotiation, protect the seller's competitive advantage, and serve as a preliminary risk allocation mechanism, especially in hostile acquisition scenarios and protecting core human resources. Effective use of NDAs, with sharply negotiated terms, is critical to creating a successful deal and maximizing value for the company's shareholders.
[1] Except for some special cases such as providing to advising lawyers, valuers, and state agencies in the process of notifying economic concentration (if any).
