Vietnam acquisition due diligence: a disciplined framework for Singapore investors

For a Singapore investor assessing a Vietnamese acquisition, due diligence should do more than produce a long exception list. Its purpose is to establish whether the target can be owned, operated and financed as expected, and whether identified risks can be reflected in price, structure, conditions or post-closing actions.

The most useful process begins with the investment thesis and works backwards. It tests the facts that must be true for the transaction to create value. Legal, financial, tax, commercial, operational and integrity workstreams then answer the same decision question from different angles.

Define the deal perimeter before requesting documents

A diligence process becomes inefficient when the buyer starts with a generic data-room checklist. Define the proposed transaction first: share or asset acquisition, minority or control position, direct or holding-company ownership, funding route, expected signing and closing sequence, and any planned integration.

Then convert the investment thesis into a small set of critical assumptions. These might concern recurring revenue, customer retention, licensed capacity, access to land or facilities, working-capital requirements, management continuity, or the ability to distribute cash. Each assumption should have an evidence owner, a validation method and a consequence if it fails.

This approach also improves specialist coordination. Counsel, accountants, commercial advisers and technical experts can distinguish matters that affect value from items that are merely incomplete. BLI's corporate due diligence work is structured around that decision hierarchy rather than the volume of documents reviewed.

Test the foreign-investment pathway early

The ownership structure should be tested before the buyer treats commercial terms as settled. Vietnam's official investment-promotion guidance identifies market-access conditions, national-defence and security considerations, and restrictions connected with land in certain areas as relevant conditions for foreign capital contributions and share or stake purchases.

The practical question is not simply whether foreign investment is permitted in principle. The team should confirm the target's registered business lines, actual activities, licences, ownership chain, land exposure and proposed post-closing activities. Where a regulated activity or approval is relevant, the expected filing sequence and long-stop timetable should be built into the transaction plan.

Capital movement also requires early attention. The official investment-promotion portal describes indirect-investment capital accounts in the context of certain investment activities. The appropriate account, payment route and documentary requirements should be confirmed for the specific transaction with qualified Vietnamese counsel, tax advisers and the relevant banks. This briefing is not a substitute for that advice.

Reconcile corporate records with operating reality

Corporate diligence should compare formal records with the business that actually operates. Review the legal ownership chain, charter and governance rights, capital contributions, shareholder arrangements, enterprise and investment registrations, sector licences, material contracts, litigation and encumbrances. Then reconcile those records with invoices, bank flows, physical assets, management reporting and customer delivery.

This reconciliation matters because a valid company does not automatically own every asset, permission or relationship required by the investment case. Intellectual property may sit with a founder. A key facility may be leased from a related party. Customer contracts may contain change-of-control rights. A licence may cover only part of the activity described in the forecast.

Related-party dependencies should be mapped explicitly. For each dependency, establish the counterparty, commercial terms, duration, termination rights and replacement cost. The objective is not to remove every relationship. It is to understand which relationships must be documented, novated, continued or replaced before the buyer can rely on the forecast.

Build a bridge from reported earnings to cash

Financial diligence should explain how accounting results convert into cash available to the acquired business. Start by reconciling audited or statutory accounts, tax filings, management accounts, bank statements and the transaction model. Differences should be explained, not averaged away.

Test revenue by customer, product, contract and cash receipt. Separate recurring activity from one-off projects, pass-through amounts and related-party sales. Review gross margin by economically meaningful segment and identify costs required to sustain current operations. Working capital should be analysed across a full operating cycle, including seasonality, ageing, inventory provisions, customer advances and supplier concentration.

Net debt and debt-like items require a transaction-specific definition. It may need to address unpaid taxes, accrued employee obligations, deferred capital expenditure, guarantees, off-balance-sheet commitments and balances with related parties. The output should be a transparent bridge from reported earnings to maintainable earnings, cash conversion, net debt and the purchase-price mechanism.

Extend diligence beyond the financial statements

Operational evidence determines whether the forecast is executable. Review capacity, maintenance, procurement, supply concentration, quality systems, information security, management depth and the controls used to produce performance data. Site observations and interviews should be reconciled with records rather than treated as separate impressions.

Commercial work should test the customer's reason to buy, competitive alternatives, contract economics, renewal behaviour and the cost of serving growth. Reference calls require appropriate consent and sequencing, particularly where confidentiality could be compromised before signing.

Integrity, environmental, labour and supply-chain risks also belong in the investment decision. The OECD's risk-based due-diligence framework is designed to help organisations identify and address actual and potential adverse impacts in their operations, supply chains and business relationships. The scope should be proportionate to the target's sector, geography and risk profile, with specialist review where required.

Convert findings into transaction decisions

A strong report does not classify every issue as high, medium or low and stop there. It states the evidence, the remaining uncertainty, the economic or execution consequence, and the proposed response. That response may be a price adjustment, closing condition, warranty, indemnity, escrow, pre-closing remediation, governance right, integration action or a decision not to proceed.

Management should maintain a single decision log across workstreams. An apparent tax issue may also affect the debt bridge. A licensing dependency may change the closing sequence and working-capital requirement. Customer concentration may require both a valuation adjustment and a retention plan. Cross-workstream ownership prevents the same risk from being counted twice or missed between advisers.

The final investment committee paper should be able to answer five questions clearly: what is known, what remains uncertain, what could change value, what must occur before closing, and who owns each post-closing action. Investors can use BLI's investor mandate route to define acquisition criteria and the evidence required for an initial fit review.

A disciplined sequence for Singapore investors

The sequence is straightforward: define the thesis, confirm the feasible ownership and funding path, test the evidence behind value, translate risks into transaction protections, and keep unresolved matters visible through closing. The work should be tailored to the target rather than expanded for appearance.

For cross-border acquisitions, evidence quality is more valuable than checklist length. A disciplined process gives the buyer a defensible basis for price, structure and execution while making clear where specialist legal, tax, regulatory or technical advice is still required.

Sources

1. Conditions for capital contribution and purchase of shares or stakes in Vietnamese enterprises by foreign investors — Vietnam Investment Promotion Agency
2. Bank account for indirect investment — Vietnam Investment Promotion Agency
3. Due diligence guidance for responsible business conduct — OECD