The Next Stage in Vietnam’s Tile Case
On September 29, 2025, the Trade Remedies Authority of Vietnam (TRAV) released the Vietnam AD23 anti-dumping investigation questionnaire to selected exporters. This marks the shift from the initial sampling stage to the full investigation stage in the tile case against India. The decisive deadline is clear, that all responses must be filed by November 5, 2025 (Hanoi time).
For sampled exporters, this questionnaire is the gateway to determining individual duty margins. For non-sampled exporters, the outcome depends on whether they requested separate treatment on time and how TRAV applies the law.
Current Status of the Investigation
August 18, 2025: MOIT initiated the anti-dumping case on Indian tiles
August 25, 2025: TRAV issued the sampling questionnaire
September 19, 2025: TRAV published the sampling results of the exporters to be reviewed.
September 29, 2025: TRAV distributed the Vietnam AD23 anti-dumping investigation questionnaire to these sampled exporters.
Who Must Respond and By When
Sampled exporters must submit full responses to the Vietnam AD23 anti-dumping investigation questionnaire by November 5, 2025.
Voluntary respondents who requested inclusion by September 27 are not guaranteed full questionnaires. TRAV has confirmed that no new exporters will be added at this stage.
Non-sampled but cooperative exporters will not receive the Vietnam AD23 anti-dumping investigation questionnaire but will instead be assigned a weighted-average duty margin based on sampled results.
Non-cooperative exporters will face the “all others” rate, often the highest duty applied.
How to Answer AD23 Anti-Dumping Investigation Questionnaire?
The questionnaire is a multi-part document requiring disclosure across operations, sales, and costs.
To answer the anti-dumping investigation questionnaire, pay attention to the key features that include:
Separate responses for each company: Every exporter and each affiliated company involved in producing or trading the investigated tiles must complete the questionnaire independently. If one company in a group fails to cooperate, TRAV can apply the dumping margin to the entire group.
Comprehensive sections, which is divided into major parts:
- General company information
- Data on the investigated goods and production
- Export sales to Vietnam and other markets
- Domestic sales in India
- Cost of production
- Purchase and resale prices
- Computerized data files
- Reconciliation tables ensuring numbers tie to audited accounts
Trading company obligations: Non-affiliated trading houses exporting tiles to Vietnam must file their own responses and coordinate with manufacturers to complete the data.
Verification clause: Each company must sign a confirmation that information is accurate, with the understanding that TRAV will conduct on-site verification visits at offices and plants.
Translation and confidentiality: Submissions must be filed in Vietnamese, with both confidential and public versions, and the public version must contain summaries.
This structure makes clear why the Vietnam AD23 anti-dumping investigation questionnaire requires close cooperation between exporters, affiliated companies, trading houses, accountants, and legal counsels in Vietnam and India.
Step by Step Guide for Submission of Answers to AD23 Anti-dumping Investigation Questionnaire

Steps to take to comply with the Vietnam AD23 anti-dumping investigation questionnaire:
Step 1: File responses through TRAV ONLINE.
Step 2: Submit a signed hard copy confirmation page and a USB with all files.
Step 3: Provide both confidential and public versions with meaningful summaries.
Step 4: Ensure Vietnamese translations are accurate and consistent.
What Happens Next
After November 5, TRAV will:
Review questionnaire responses for accuracy.
Conduct on-site verification visits at company offices and plants.
Issue a preliminary decision, possibly including provisional duties.
Conclude with a final decision within 12–18 months of initiation.
Handling the Vietnam AD23 anti-dumping investigation questionnaire is only the first step in a long process that requires sustained cooperation and expert guidance.
Key Q&A for Exporters
Can voluntary respondents still be added to the sampling list?
No. TRAV finalized the list on September 19. Companies that requested inclusion by September 27 but were not selected will not be issued the Vietnam AD23 anti-dumping investigation questionnaire.
If a voluntary respondent submits anyway, will TRAV accept it?
No. Only sampled exporters can file the Vietnam AD23 anti-dumping investigation questionnaire. Non-sampled exporters receive average duty rates instead.
What if a company filed the sampling form but does not submit the full questionnaire?
It will be treated as non-cooperative and assigned the “all others” duty, which is usually much higher.
What is in the full questionnaire?
The Vietnam AD23 anti-dumping investigation questionnaire covers export sales to Vietnam, domestic sales in India, cost of production, financials, and corporate structures.
How important are translations?
Essential. TRAV requires submissions in Vietnamese.
How long will the case last?
Between 12–18 months, including verification visits and determinations.
Why engage local counsel?
Local lawyers and consultants are vital to:
- Ensure proper translation of the Vietnam AD23 anti-dumping investigation questionnaire.
- Liaise with TRAV officers during verification.
- Prepare compliant public versions.
- Safeguard exporters’ rights over a lengthy process.
About ANT Lawyers, a Law Firm in Vietnam
We help clients overcome cultural barriers and achieve their strategic and financial outcomes, while ensuring the best interest rate protection, risk mitigation and regulatory compliance. ANT lawyers has lawyers in Ho Chi Minh city, Hanoi, and Danang, and will help customers in doing business in Vietnam.
Source: https://antlawyers.vn/update/ad23-anti-dumping-investigation-questionnaire.html
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