In advisory practice, Med-Arb is rarely a theoretical question: it typically erupts after money has moved, deadlines have started running and each side reads the same document differently. Three layers of risk already overlap around med-Arb at this early stage: the validity of the decision, the tax consequence and the exposure to a shareholder or counterparty challenge. Readers will see med-Arb examined from three sides: what the current law says, where companies usually trip, and what must be locked before signing.
Applicable legal framework
Companies tend to look up each rule in isolation when handling med-Arb; the correct approach is to read the three texts below together over one file, because each of them locks a different layer of risk in med-Arb.
Anchor first for med-Arb: Law on Commercial Arbitration 54/2010/QH12 — in force at the time of writing. Any research into Commercial Arbitration 54/2010/QH12 for med-Arb has to start from Law on Commercial Arbitration 54/2010/QH12, the specialist instrument on this subject. On the facts described, this is the text a counterparty or a regulator will reach for first when testing med-Arb.
The second anchor for med-Arb is VIAC Rules of Arbitration 2026 (effective 01 July 2026 for proceedings commenced on or after that date). In scope, VIAC Rules of Arbitration 2026 covers precisely the part of the work a med-Arb file has to resolve. Applied to the file at hand, this text is the basis for answering the question “What mistakes most often weaken a party’s position on med-Arb” that the company raises in the analysis below.
The analysis of med-Arb starts, at layer third, from Civil Code 91/2015/QH13 (in force at the time of writing). The rules in Civil Code 91/2015/QH13 on this point are mandatory, not guidance that can be taken or left, and they frame how med-Arb must be handled. Reading this instrument correctly avoids the most common error in med-Arb: getting the commercial steps right and the legal basis wrong.
Analysis through the questions clients actually ask
The matter has a further layer of context: The dispute over med-Arb reaches counsel when documents, money and deadlines are already in motion. Rather than restating theory, this section answers the five questions that arise from the med-Arb file itself, in the order clients usually ask them.
Can a foreign party enforce the outcome on med-Arb against assets in Vietnam?
At the heart of “Can a foreign party enforce the outcome on med-Arb against assets in Vietnam” is identifying who holds the decision right and how that decision must be recorded under Law on Commercial Arbitration 54/2010/QH12 when handling med-Arb. The reason is that in med-Arb the sequence of steps carries its own legal weight: a step taken before a valid decision exists is usually treated, on review, as if it had never happened. Handled correctly from the start, by contrast, med-Arb withstands both internal review and an external authority’s scrutiny.
For this part of med-Arb, the company should also keep the drafts that were exchanged, because how a decision was formed can matter almost as much as the decision itself. The answer on this point of med-Arb therefore always has two layers: what the text says, and what the company’s file can prove. A specific risk of med-Arb is that the parties usually discover the gap only once the file has moved to a stage where it can no longer be fixed.
What mistakes most often weaken a party’s position on med-Arb?
To answer “What mistakes most often weaken a party’s position on med-Arb”, one has to return to VIAC Rules of Arbitration 2026 and read its rules together with the concrete facts of the file, instead of applying a general formula. When the sides disagree, the party holding an unbroken evidence chain on med-Arb — resolutions, minutes and payment records — usually keeps the stronger position. This is the line between a med-Arb file assembled to be finished and a med-Arb file built to be defended in court or on inspection.
The company should keep a dedicated evidence folder for med-Arb: the decision of the competent level, any independent valuation or computation, and the working minutes between the parties. In short on this point of med-Arb: a decision is only safe when it can be traced back to VIAC Rules of Arbitration 2026 and to evidence created at the time of the decision. Risk in med-Arb seldom comes from one large error; it accumulates from many small steps, each of which looked harmless on its own.
When is an independent expert needed in med-Arb?
The question “When is an independent expert needed in med-Arb” can only be answered next to Civil Code 91/2015/QH13: detached from that text, any answer on med-Arb lacks a basis. Divergence in med-Arb usually starts from one small assumption — treating a verbal understanding as sufficient, for instance — and only surfaces when a counterparty or the tax authority re-examines the whole file. The practical consequence: get this step wrong and the rest of med-Arb has to be redone, with penalty or invalidity risk attached.
On evidence for this part of med-Arb, the minimum file is the signed agreement, the document proving value or the applicable condition, and the matching record of internal approval. What should be remembered in med-Arb is that validity is decided by the file, not by the parties’ good intentions. med-Arb carries one further risk that is rarely discussed: the internal file not matching the filed file, an inconsistency that is itself a weakness.
Which deadline matters most when handling Med-Arb?
Answering “Which deadline matters most when handling Med-Arb” directly: the issue is not what the parties feel is fair but how Law on Commercial Arbitration 54/2010/QH12 allocates the decision right in med-Arb. The decisive point is the proof file: the same med-Arb outcome can attract opposite legal assessments depending on whether the supporting file is complete or patched together. This is also where, in med-Arb, a careful legal answer parts company with an experience-based one: experience gives a fast answer, while the primary text gives an answer that holds.
A practice worth adopting in med-Arb is to record in writing why this route was chosen and the other rejected, because that note is usually the first thing read in a dispute. With med-Arb, the right answer is always the one that can point to a specific provision and a specific document behind it. The most underestimated risk in med-Arb is sequence risk: doing the right thing in the wrong order is still treated as doing it wrong.
What does handling Med-Arb typically cost?
The question “What does handling Med-Arb typically cost” sounds simple, yet it is where companies most often go wrong in med-Arb, usually by overlooking what VIAC Rules of Arbitration 2026 requires. In practice, an authority reviewing med-Arb reads the file in a fixed order — texts first, evidence second, the company’s explanations last. If this is skipped, the company may complete the transaction on paper while carrying a legal defect in med-Arb for years afterwards.
Evidence for med-Arb should be indexed question by question, so that when an authority asks about one point the matching documents can be produced at once. The practical takeaway for med-Arb is not to leave this question open until signing; the later it is settled, the more expensive the fix. In med-Arb, risk rises sharply when a decision is taken before VIAC Rules of Arbitration 2026 has been fully tested against the actual file.
What to do now
From the analysis above, the following three groups of actions should be taken now, in this order, before med-Arb moves any further.
Step one in med-Arb is a full audit of the existing paper trail, because most errors surface at exactly this cross-checking stage.
The second task in med-Arb is to re-verify signing and approval authority under Law on Commercial Arbitration 54/2010/QH12, avoiding documents signed by a person without sufficient authority.
The third task is to prepare the answer set for med-Arb ahead of questions from shareholders, counterparties and regulators, built on the very anchor texts cited in this article.
Frequently asked questions
Can a foreign party enforce the outcome on med-Arb against assets in Vietnam?
In principle yes, provided med-Arb is carried out in the sequence and by the authority that VIAC Rules of Arbitration 2026 prescribes. The legal footing for this answer is VIAC Rules of Arbitration 2026, effective 01 July 2026 for proceedings commenced on or after that date — citing a predecessor text that has ceased to be in force would distort the whole conclusion on med-Arb. Before applying this to med-Arb, the company should re-check the assumptions behind the question against its own situation, because a single different fact can change the answer.
What mistakes most often weaken a party’s position on med-Arb?
The answer depends on how Civil Code 91/2015/QH13 characterises the issue in med-Arb: naming the problem correctly in legal terms is the first step to handling it correctly. The deciding provision for med-Arb sits in Civil Code 91/2015/QH13 (in force at the time of writing), and practice on Civil Code also flows from this text. On a concrete med-Arb file, the company should check its own particular facts before applying this answer, especially where the transaction has a foreign element.
When is an independent expert needed in med-Arb?
In med-Arb, the decisive time limit is not the signing date but the deadline Law on Commercial Arbitration 54/2010/QH12 ties to the first procedural step that must be completed. To test this answer in med-Arb, open Law on Commercial Arbitration 54/2010/QH12 (in force at the time of writing): the deciding criterion is there, not in industry custom. A company handling med-Arb should test this answer against its actual file and record any difference, if there is one, before acting.
Which deadline matters most when handling Med-Arb?
In med-Arb, the governing time limit is the one VIAC Rules of Arbitration 2026 uses to compute the effect of the step in question, and it usually falls earlier than companies expect. The basis is VIAC Rules of Arbitration 2026 (effective 01 July 2026 for proceedings commenced on or after that date): this is the instrument that directly governs the subject of the question within med-Arb. A frequent mistake in med-Arb is to apply this answer to every case; it holds only where the company’s facts match the assumptions behind the question.
What does handling Med-Arb typically cost?
For med-Arb, the main cost items are the procedural fees, expert costs where Civil Code 91/2015/QH13 requires value or a condition to be proven, and a reserve for work that has to be redone if the file is returned. The support for this answer is Civil Code 91/2015/QH13 (in force at the time of writing), the text from which current practice on Civil Code starts when examining med-Arb. A practical note on med-Arb: create and file the evidence at the time of performance, because in a later dispute documents made after the fact carry little weight.
This article has been quality-reviewed by the FLAW AI Legal Council