Are MOUs & LOIs Legally Binding In Korea? Enforceability Of MOUs And LOIs Under Korean Law

Foreign companies and individual investors entering the Korean market sometimes assume that a Memorandum of Understanding (MOU) is merely a non-binding document used to outline preliminary discussions and thus not enforceable under Korean Law. Under Korean law, that assumption is frequently wrong and sometimes leads to litigation and even criminal complaints being filed to the Korean Prosecution Services.

Enforceability of MOUs and LOIs in Korea

An MOU in Korea may be fully enforceable, partially binding, or non-binding, depending not on its title but on its content, structure, the parties’ course of dealing, and their representations. Misunderstanding this distinction has led to significant liability, headaches, and reputational damage for foreign investors and companies doing business in Korea.

Substance Over Form: How Korean Courts View MOUs

Korean courts apply a substance-over-form approach to MOUs. The label “MOU,” “LOI,” or “Term Sheet” carries little legal weight. Instead, courts in Korea examine, in most cases, whether the document reflects:

• A meeting of the minds on key terms
• An intent to be legally bound
• Sufficient specificity in obligations

If these elements are present, the MOU may be treated as a binding contract, even if the parties anticipated signing a more formal agreement later. In practice, where the essential terms such as price, scope, and timing are agreed upon, Korean courts are willing to find that a contract exists, notwithstanding language suggesting the agreement is only “preliminary” and is intended to lead to a definitive agreement.

The “Non-Binding” MOU Problem in Korea

If an MOU expressly states that it is non-binding, Korean law does not automatically eliminate the parties’ legal obligations. Korea recognizes a “duty of good faith” in negotiations. This concept, often referred to as pre-contractual liability, is well-established in Korean jurisprudence. Courts in Korea have awarded damages where a party:

• Induced reliance during negotiations
• Abruptly terminated discussions without justification
• Acted in a misleading or opportunistic manner
• Terminated a relationship after a course of dealing

Partially Binding MOUs

Many MOUs in Korea are partially binding, even when the core transaction remains non-binding.

Courts in Korea routinely enforce provisions such as:

• Confidentiality obligations
• Exclusivity clauses (if reasonable in duration and scope)
• Dispute resolution and governing law clauses
• Cost allocation or break-up fee provisions
• Termination Clauses
• Non-Compete obligations.

Common Pitfalls for Foreign Companies

IPG Legal frequently advises clients who encounter disputes arising from poorly drafted or misunderstood MOUs. The most common issues include:

1. Assuming an MOU is non-binding
2. Including detailed commercial terms in an MOU
3. Executing Korean-Language MOUs without review
4. Overreliance on “Subject to Contract” language
5. Having overseas counsel draft MOUs for matters that may be governed by Korean law
6. Commencing work under an anticipated contract before drafting a definitive agreement

Practical Drafting Guidance

Foreign companies entering into MOUs in Korea should approach drafting strategically.

If the intent is to create a non-binding MOU, the agreement should:

• Clearly state that it is non-binding, except for specified provisions
• Include an explicit disclaimer that there is no obligation to execute a definitive agreement
• Identify which provisions are intended to be binding (e.g., confidentiality, exclusivity)

If the intent is to create a binding agreement, the document should:

• Clearly define all material terms
• Use definitive language (e.g., “shall”)
• Avoid ambiguity regarding future agreements

As a general rule, the most effective approach in Korea is a hybrid structure:
non-binding commercial terms combined with clearly defined binding protections.

Conclusion

In Korea, an MOU is not merely a “preliminary” document – it can be a legally binding agreement. Foreign companies should not assume that labeling a document as an MOU limits liability. Korean courts will look beyond the title to determine whether a binding agreement exists and whether the parties have acted in good faith. Thus, careful drafting, clear allocation of binding and non-binding provisions, and local legal review are essential to managing risk.

by Sean Hayes

Sean Hayes is a senior foreign attorney at IPG Legal, one of Korea’s leading international law firms, advising foreign companies, investors, and entrepreneurs on Korean law.

Hayes has extensive experience advising on cross-border transactions, joint ventures, and preliminary agreements, including the structuring and negotiation of MOUs, LOIs, and term sheets under Korean law. He is frequently engaged by multinational companies and companies expanding to Korea.

Attorney Hayes is the principal author of The Korean Law Blog, one of the most widely read English-language resources on Korean law, where he regularly provides insights on contract law, dispute resolution, and foreign investment risks in Korea.

Sean’s profile may be found at: Sean C. Hayes. If you would like a consultation with an attorney, please Schedule a Call.