In US countervailing duty investigations of goods made in Vietnam, US petitioners are asking a newer question with growing frequency: did the Vietnamese producer receive support from a third government outside Vietnam, typically linked to its supply chain or its parent company abroad? For Chinese-invested enterprises in Vietnam this is no longer a theoretical question, but an allegation track for which defence files should be prepared before any questionnaire arrives.
Transnational subsidies in US investigation practice
Under US countervailing duty law, the US Department of Commerce (DOC) examines whether a support programme is a countervailable subsidy, through the elements of financial contribution, benefit conferred on the enterprise and specificity of the programme. In the traditional structure the financial contribution came from the government of the country where the goods were produced, and for many years US practice did not pursue allegations that a third-country government had financed support for a producer in the investigated country.
The notable change is that the DOC’s 2024 regulatory amendment removed the legal barrier that had made this type of allegation difficult to examine, opening the way for investigators to consider transnational subsidy allegations in individual cases. This change must be read at its true scale: it opens a legal possibility of examination, it does not mean every investigation automatically expands into third-country support, and the outcome of any individual case cannot be asserted without independently reviewing its investigation record.
For Chinese-invested enterprises, the forms of support petitioners most readily target include preferential loans from banks in a third country for the Vietnam project, assistance from a foreign local authority granted to the parent and passed down to the subsidiary, and incentive programmes tied to production relocation. Even where an enterprise believes its funding is wholly commercial, the practical burden in an investigation is to prove that with documents, inside very tight response deadlines.
Protection is built from records, not explanations
The first line of defence is a transparent financial file at the level of each loan and each capital contribution: credit agreements showing market-based interest and terms, bank disbursement records, audited financial statements of the Vietnamese company and of the parent, and documents on internal credit approval. Where the enterprise’s borrowing terms match what an unrelated borrower could obtain on the market, the argument that a subsidy benefit exists weakens considerably.
The second line is a register of incentives actually received, in Vietnam and in any third country, compiled proactively rather than when asked: investment incentive decisions, tax incentive certificates, land rent exemption or reduction documents and every cash or in-kind support from a public authority anywhere. A complete internal register lets the enterprise spot early which support could be characterised as a subsidy and estimate its margin impact before investigators do the calculation instead.
The third line is the capacity to answer questionnaires on time and consistently. Countervailing questionnaires typically demand data by programme, by year and by related party, backed by source documents; a late or incomplete response can lead investigators to use facts available that are adverse in place of the enterprise’s own data. Enterprises should maintain a standing investigation data room covering ownership structure, the list of related parties, every support programme touched and staff who can be mobilised within days.
After a determination: challenges and annual reviews
US countervailing duties operate through a duty order combined with annual administrative reviews, in which each exporter’s actual duty rate is recalculated on the data of the review period. An enterprise subject to duties may join those reviews to seek a rate reflecting its own data, and may also consider challenging the investigating authority’s determination before the competent US court within the statutory deadline, through US trade counsel working with the Vietnam team that holds the source records.
What enterprises must avoid is waiting for a final determination before acting. In the US investigation system, most outcomes are shaped by the quality of data filed during the initial investigation and the first review cycles; a record system built late usually cannot recreate documents that should have been kept from the moment a loan or an incentive arose.
Frequently Asked Questions
Can a US countervailing investigation of Vietnamese goods examine alleged subsidies from a third party outside Vietnam?
Legally, that possibility was opened after the DOC’s 2024 regulatory amendment removed the barrier that had prevented investigators from examining subsidies financed by a third-country government. It remains a case-by-case examination driven by the petitioner’s allegations and evidence, not an automatic mechanism applied to every investigation. Enterprises should track the petition and the specific allegations in the case touching their own products rather than speculate from the general trend.
How does a Chinese-invested enterprise in Vietnam protect itself when accused of receiving transnational subsidies?
The core of self-protection is documentary proof that the enterprise’s funding and loans follow market terms: loan agreements at commercial interest rates, bank records of fund flows, audited reports and credit approval files. In parallel, the enterprise should compile in advance every incentive received in any country so that no named programme comes as a surprise, and should stand up a response team able to answer questionnaires fully and consistently within the set deadline.
What financial and incentive records must an enterprise prepare to answer an investigation questionnaire?
The core file comprises audited financial statements of the Vietnamese company and its related parties, all loan agreements and disbursement records, documents on shareholder capital contributions, investment incentive decisions and certificates in Vietnam, documents on any support from public authorities in a third country, and a year-by-year register of support programmes. Every figure in a response must trace back to a source document, because investigators cross-check the parts of the file against one another.
If countervailing duties are imposed, how does an enterprise challenge them and request annual reviews?
An enterprise may register to take part in the annual administrative review so that its own rate is recalculated on the data of the review period, provided it files complete data on time as in the original investigation. As to challenges, the investigating authority’s determination may be brought before the competent court in the United States for review within the statutory deadline. Both routes need US trade counsel to run the procedure, while the enterprise in Vietnam remains responsible for supplying and preserving the source records beneath every argument.
An invitation for Chinese-invested exporters to the US market
If your plant in Vietnam exports to the United States and its capital structure, loans or incentives involve a parent company in China, FLAT Law Firm proposes a subsidy-file review built specifically around your enterprise’s records: matching each funding source against market terms, registering incentives received in both countries and testing readiness to answer a questionnaire under deadline pressure. This preparation is most valuable when done before a petition appears, not after a response clock has started counting down.
This article has been quality-reviewed by the FLAW AI Legal Council