In an increasingly competitive market landscape, organic growth alone is often not fast enough for businesses to keep pace with evolving market dynamics. This is why M&A transactions—particularly business mergers—have emerged as a strategic tool to scale operations, expand market share, leverage mutual resources, and optimize operational costs.
However, behind the seemingly “win-win collaboration,” a business merger is in fact a complex process that requires thorough assessments of financial, legal, strategic, and human capital factors. Lack of experience or failure to properly identify and mitigate risks can lead to costly failures—wasting time, money, and damaging corporate reputation.
With extensive experience advising both domestic and international enterprises, we have learned that a successful merger is not a matter of luck. It results from meticulous preparation, sound legal understanding, and a well-structured post-merger integration (PMI) strategy.
This article by Lexconsult & Partners is designed to equip business owners, executives, and senior advisors with a comprehensive understanding of the legal framework, procedural roadmap, strategic advantages, and potential legal pitfalls in mergers—allowing for more informed, secure, and effective decision-making in every transaction.

1. What Is a business merger? Definition and legal conditions
According to Clause 1, Article 201 of the Law on Enterprises 2020:
1. One or some companies (acquired companies) may be acquired by another company (acquiring company) by transfer all of the acquired company’s assets, rights, obligations and lawful interests to the acquiring company, after which the acquired company shall cease to exist.
Thus, a merger is a legal arrangement in which two or more enterprises are consolidated, but only one legal entity continues to exist. The merged company ceases its legal status upon completion of the merger. The merging company inherits all rights and obligations of the merged entity.
The primary objectives of a merger typically include leveraging combined resources, strengthening competitiveness, reducing operating costs, and enhancing profitability.
Legal conditions for a business merger:
– If the merger results in the merging company holding from 30% to 50% of the market share in a relevant market, its legal representative must notify the Competition Authority prior to proceeding with the merger, unless otherwise stipulated by the Law on Competition.
– Mergers resulting in the merging company holding over 50% of the market share are prohibited, unless an exemption applies under the Law on Competition.
2. Legal procedure for merging companies in Vietnam
The standard legal process for a business merger in Vietnam includes the following steps:
Step 1: Conduct legal due diligence on the company to be merged
Step 2: Develop a merger strategy and plan
Step 3: Obtain internal approvals from relevant corporate bodies
Step 4: Negotiate the Merger Agreement and new Charter (if applicable)
Step 5: Sign the Merger Agreement and notify creditors
Step 6: Execute the merger and complete legal procedures
These steps are governed by Article 201 of the Law on Enterprises 2020 and Article 73 of Decree No. 01/2021/ND-CP on enterprise registration.
2.1. Drafting the merger agreement and charter of the merging company
According to Point a, Clause 2, Article 201 of the Law on Enterprises 2020:
a) The acquiring company and acquired company shall prepare the acquisition contract and draft the charter of the acquiring company. The contract shall contain the name and address of the acquiring company; name and address of the acquired company; procedures and conditions for acquisition; employment plan; method, procedures, deadline and conditions for transfer of assets, shares/stakes, bonds of the acquired company to the acquiring company; acquisition time;
The merger agreement is the central legal document in the merger process, clearly outlining the obligations and commitments between the parties. The draft charter of the merging company serves as the foundation for reorganizing the post-merger management and governance structure.
Key contents of the merger agreement include:
– Names and registered head office addresses of both the merging and merged companies;
– Procedures and conditions for the merger;
– Labor utilization plan;
– Methods, procedures, timelines, and conditions for converting assets, capital contributions, shares, and bonds of the merged company into those of the merging company;
– Timeline for implementing the merger.
2.2. Approval of the merger agreement and the charter of the merging company
According to point b, Clause 2, Article 201 of the Law on Enterprises 2020:
b) The members, owners or shareholders of the companies shall ratify the acquisition contract and the acquiring company’s charter and apply for registration of the acquiring company in accordance with this Law. The acquisition contract shall be sent to the creditors and employees within 15 days from the day on which it is ratified;
Approval must follow the procedures and voting ratios stipulated in each company’s charter. This is a mandatory condition for the merger agreement to become legally effective.
2.3. Notification to employees and creditors
Pursuant to the same legal provision:
The acquisition contract shall be sent to the creditors and employees within 15 days from the day on which it is ratified
This requirement ensures the protection of legitimate rights of employees and creditors. In some cases, companies may need to renegotiate employment contracts or settle outstanding financial obligations before proceeding.
2.4. Registering changes to enterprise information
According to point c, Clause 2, Article 201 of the Law on Enterprises 2020:
c) After the acquiring company is registered, the acquired companies shall cease to exist. The acquiring company shall inherit the lawful rights and interests, liabilities, unpaid debts, employment contracts and other obligations of the acquired company under the acquisition contract.
This provision underscores the importance of thorough legal and financial due diligence prior to the merger, as the merging company assumes all liabilities of the merged entity.
2.5. Updating legal status in the national enterprise database
According to Clause 2, Article 73 of Decree No. 01/2021/ND-CP, the legal status of the merged company shall be updated in the national enterprise registration database within one (01) working day from the date the tax authority confirms completion of tax finalization procedures.
This is the final step to officially record the dissolution of the merged company. Beforehand, the company must settle all tax obligations, transfer assets, finalize labor matters, and complete other legal procedures for asset and liability transition.
3. Key benefits of corporate mergers
Corporate mergers are not merely a strategy for expansion; they also serve as an effective mechanism for restructuring, resource optimization, and enhancing competitive strength. Below are four core advantages:
Expansion of operational scale
Mergers enable enterprises to rapidly expand both geographically and across industry sectors. Instead of building infrastructure from scratch, the acquiring company inherits the entire network of branches, agents, clients, and distribution channels from the merged entity.
Practical example: A company in Ho Chi Minh City merging with another in the same sector located in Hanoi can instantly establish a presence in both of Vietnam’s largest markets without additional investment.
This combination helps increase brand presence, efficiently utilize existing supply chains, and extend product and service offerings to a broader customer base.
Enhanced competitive capacity
Upon merging, companies can:
– Increase capital scale;
– Boost production or service delivery capacity;
– Strengthen bargaining power with partners and clients;
– Shorten time-to-market for products/services.
This is particularly critical in today’s globally integrated and highly competitive environment, where only businesses with adequate scale and financial strength can compete effectively. In the e-commerce sector, several major mergers have been driven by goals of market dominance, increased market share, and ecosystem development.
Operational cost reduction
One of the most prominent benefits of mergers is the consolidation of organizational structures, eliminating overlapping functions, especially in support departments such as accounting, HR, administration, and IT.
Additionally, mergers help:
– Reduce costs related to premises, warehousing, and logistics;
– Optimize redundant resources;
– Improve production and service efficiency through existing technologies.
The principle of economies of scale is pivotal in allowing businesses to achieve higher profit margins post-merger.
Leveraging technology and human capital
The merged company may own proprietary technologies, modern management systems, specialized software, or valuable business know-how—intangible assets that are highly valuable in M&A transactions.
Moreover, high-quality human resources—particularly management, specialists, or skilled technical staff—can complement the acquiring company’s existing managerial or technical deficiencies. Many large tech conglomerates acquire startups not solely for market share but to acquire talent—a practice known as “acqui-hiring.”
4. Legal risks in corporate mergers
Despite their benefits, mergers involve numerous legal, financial, and managerial risks if not thoroughly prepared. Below are four common legal pitfalls to watch out for:
4.1. Shareholder disputes
One of the most common risks in mergers is conflict among shareholders, particularly concerning share allocation, voting rights, or management roles post-merger.
– Minority shareholders or those from the absorbed company may reject the merger terms, resulting in legal disputes or regulatory complaints.
– Without a transparent and equitable share conversion plan, internal conflicts are highly likely.
According to Point a, Clause 2, Article 201 of the Law on Enterprises 2020, all parties must approve the merger contract, including the share conversion method from the absorbed company to the acquiring company.
4.2. Financial and legal liability risks
Pursuant to Clauses 2 and 3, Article 201 of the Law on Enterprises 2020, the acquiring company assumes full ownership of the absorbed company’s assets, liabilities, and legal obligations, including:
– Bank loans or undisclosed debt;
– Outstanding tax liabilities;
– Commercial contracts with unfavorable terms;
– Pending or potential litigation.
If the acquiring company fails to conduct thorough legal and financial due diligence, it risks inheriting significant liabilities. There have been cases where the acquired company was under investigation for environmental or tax violations, which the acquirer only discovered post-merger – leading to fines and back taxes.
4.3. Human resources and internal structure issues
Mergers mean two organizational structures must be integrated, which may lead to:
– Overlapping positions (e.g., CFOs, marketing managers, HR heads), requiring personnel streamlining;
– Corporate culture clashes due to differing values or management styles, potentially causing internal instability;
– Labor disputes, especially when layoffs are executed without clear workforce utilization plans, which are mandatory in the merger contract.
As per points a and c, Clause 2, Article 201 of the Law on Enterprises 2020, the workforce utilization plan must be clearly stated in the merger contract and communicated to employees within 15 days of approval.
4.4. Non-compliance with competition regulations
According to Article 29 of the Law on Competition 2018, mergers are a form of economic concentration. In certain cases, notification to the National Competition Commission is required if market share or revenue thresholds are exceeded.
Failure to comply may result in:
– The merger transaction being declared null and void; or
– Heavy administrative penalties and even forced divestiture.
Clause 3, Article 201 of the Law on Enterprises 2020 requires compliance with competition laws. Articles 31 and 32 of the Law on Competition 2018 stipulate notification thresholds and prohibit certain mergers that result in monopoly or dominant market positions.
5. Legal advisory recommendations from LexConsult & Partners
Mergers (M&A – Merger) are not ordinary commercial transactions. They represent a comprehensive transformation process across legal, financial, organizational, and human resources aspects, requiring close coordination between stakeholders and strict compliance with legal regulations. To ensure a successful merger, businesses should focus on the following key areas:
First, conduct legal and financial due diligence
This is a foundational step that determines the quality and risk exposure of the deal. The acquiring party should thoroughly review:
– Key contracts (e.g. lease agreements, purchase/sale contracts, credit agreements, employment contracts, business cooperation agreements);
– Asset status (real estate, intellectual property rights, land-attached assets, etc.);
– Existing or potential legal disputes;
– Financial position, outstanding debts, cash flow, taxes, and unresolved financial obligations.
Therefore, companies considering a merger should engage an independent auditing firm and M&A-specialized legal counsel to identify legal and financial risks early and propose appropriate risk mitigation before executing the merger agreement.
Second, negotiate and draft a transparent and robust merger agreement
A quality merger agreement must:
– Clearly define the rights and obligations of the parties;
– Specify how shares will be exchanged, how assets, debts, employees, and legal liabilities will be handled;
– Include representations and warranties, and indemnity clauses to protect the acquiring party in case of misrepresentation by the merging entity.
It is advisable to prepare a draft merger agreement early and conduct several negotiation rounds with legal counsel involved to ensure no critical issues are overlooked.
Third, comply fully with competition, labor, and business registration regulations
Specifically:
– If the merger transaction exceeds thresholds under Article 13 of the Law on Competition 2018, the economic concentration must be notified to the National Competition Commission.
– For affected employees, the enterprise must: Develop a labor utilization plan in accordance with Article 44 of the 2019 Labor Code; Ensure lawful rights of employees whose contracts are terminated.
– Post-merger, the enterprise must complete the business registration change procedure at the Department of Planning and Investment, pursuant to Article 73 of Decree 01/2021/NĐ-CP.
Accordingly, businesses should develop a comprehensive legal compliance plan well in advance of the merger to avoid violations that could lead to penalties or transaction invalidation.
Fourth, implement a Post-Merger Integration (PMI) plan
– Human resources: Restructure, reassign functions, and resolve overlapping positions.
– Management systems: Align operating models, internal controls, and corporate cultures.
– Clients and partners: Communicate in a timely manner to maintain relationships and avoid service disruption.
It is advisable to establish a dedicated PMI coordination team from the outset to oversee the post-merger phases and manage any potential internal conflicts.
6. Frequently Asked Questions about Corporate Mergers
How is a merger different from an acquisition?
→ A merger involves two companies combining into one single legal entity, while an acquisition involves one company acquiring all shares or assets of another, and both legal entities may remain distinct.
Is it necessary to notify the National Competition Commission of a merger?
→ Yes, if the post-merger market share exceeds 30% in the relevant market, a notification is required in accordance with Article 29 of the Law on Competition 2018.
Does the merged company need to carry out dissolution procedures?
→ No. The merged company ceases to exist by law upon completion of the merger and is not required to undergo a separate dissolution procedure, pursuant to Article 201 of the Law on Enterprises 2020.
Can foreign investors participate in mergers in Vietnam?
→ Yes, but they must comply with regulations on foreign investment, ownership ratios, conditional business sectors, and update the enterprise registration with the Department of Planning and Investment.
What happens if employees are not informed about the merger?
→ Failure to timely notify employees may result in administrative penalties under Decree 125/2021/NĐ-CP and may give rise to labor complaints or disputes.
A corporate merger is not merely a legal transfer of ownership – it is a strategic restructuring process that requires synchronization across various dimensions, from asset and personnel evaluation to contract reviews, market share analysis, legal formalities, and post-merger integration. When implemented methodically, a merger can enhance competitiveness, leverage economies of scale, expand supply chains, and accelerate market resource access.
However, many businesses have experienced “failed mergers” due to inadequate control of legal risks, undisclosed liabilities, shareholder disputes, or errors in post-merger integration (PMI). These risks must not be underestimated, especially as Vietnamese laws are increasingly tightening regulatory oversight over M&A transactions involving competition, shareholding structures, asset transfers, and labor management.
Accordingly, for enterprises considering or preparing for a merger, the following strategic actions are highly recommended:
– Develop a comprehensive and early-stage plan covering negotiation through to post-merger execution;
– Conduct thorough legal, financial, HR, and tax due diligence;
– Draft clear merger agreements and revised charters that safeguard long-term interests;
– Establish a well-defined Post-Merger Integration (PMI) strategy to stabilize internal structures and corporate culture.
Most importantly, engage a professional and experienced M&A advisory team to assist with documentation, negotiations, risk management, and legal procedures, thereby maximizing the likelihood of a successful transaction.
If your enterprise is exploring a potential merger – whether at the ideation stage or already preparing for negotiation – consider seeking support from legal and strategic experts. The legal team at LexConsult & Partners is ready to accompany you, turning your merger transaction into a powerful catalyst for your business growth journey.

Tiếng Việt