Vietnam Renewed Its Yarn Duty, and the Default Rate Is the Highest One

AI Summary

Vietnam continued its anti-dumping duty on Chinese polyester filament yarn for five years from 16 October 2026, at unchanged rates of 3.36 to 17.45 per cent. The rate is set per named producer, and the catch-all row for unnamed exporters carries the maximum, so being unlisted costs 14.09 percentage points more than being listed.

Vietnam’s Ministry of Industry and Trade concluded the sunset review of its anti-dumping measure on polyester filament yarn on 13 October 2026, kept the duty, and extended it for five years from 16 October 2026. The rates did not change. What matters is how they are assigned: per named producer, with everything unnamed at the top of the range.

Sunset review — a review carried out before an anti-dumping measure expires, to decide whether removing it would lead to a continuation or recurrence of dumping and injury. A positive determination continues the measure, usually for another five years, at rates that are re-examined. The product stays the same; the numbers attached to named exporters can move.

What happened

Vietnam published decision 2652/QD-BCT on 13 October 2026 under case number ER01.AD10. It covers polyester filament yarn originating in China, India, Indonesia and Malaysia, and it continues the anti-dumping duty for five years from 16 October 2026.

The rates are per producer, and they are wide:

The Chinese annex has 21 producer rows. Two of them are below 9 per cent, and eight carry the top rate of 17.45 per cent. The last row is the one to read twice: it is the catch-all for producers and exporters not named, and its rate is the maximum.

The six Vietnamese tariff lines covered are 5402.33.10, 5402.33.90, 5402.46.10, 5402.46.90, 5402.47.10 and 5402.47.90.

Why now

The measure has been running since the original determination in October 2021, and the sunset review that produced this decision opened a year ago, on 16 October 2025. The case has already been through two interim reviews, in December 2022 and February 2025, so this is a measure that has been looked at four times in five years and kept each time.

The practical change is not the rate. It is that the measure now has another five years in front of it, which moves the question from whether the duty survives to which rate attaches to the goods you buy. A buyer who switched to a lower-rate mill during the uncertainty now has the answer in writing, and a buyer who did not is paying the ceiling.

So what

Because the duty is ad valorem on CIF value, the rate difference is a direct cost difference on the same goods, and it is decided before the order is placed. The gap between the lowest rate and the default is 14.09 percentage points.

The CIF values are stated inputs, not a market price for yarn. The point of the table is the shape: on one 40-foot container the difference between selecting a named low-rate mill and being in the catch-all is between about 2,100 and 4,200 dollars, and it is not a negotiation with your supplier — it is a question of which legal entity is on the invoice and whether that entity appears in the annex.

Buyer already importing from a named Chinese mill: check the entity on the commercial invoice against the annex, not the mill’s brand. The annex lists groups of legal entities, including trading arms, and the rate attaches to the entity that exports. A consignment invoiced by a trading company that is not in the group named for your mill is a different row.

Buyer whose supplier is not in the annex at all: that is the 17.45 per cent row, and it is the same rate as the highest named producer. If the volume justifies it, an exporter can apply for a review to get its own margin — but that is a process the exporter runs, not the importer, and the duty is collected from the importer in the meantime.

Buyer comparing China with Indonesia or Malaysia: under this decision those origins sit at 21.94 and 21.45 per cent, above the Chinese default. Shifting origin to escape a 17.45 per cent duty by moving to a source at 21.45 per cent costs more, before freight is considered. For how a different ASEAN measure was priced per unit rather than per value, see the Indonesian safeguard duty on tarpaulin.

Anyone modelling landed cost: the duty is a percentage of CIF, which means it scales with your invoice value rather than with volume, so a high-value fine-denier yarn carries a larger absolute duty per kilogram than a commodity denier at the same rate. Where a contract ties price to a published index, the same two errors apply as anywhere else — see linking a contract to a freight index before you write the formula. For the EU’s approach to the same kind of measure on a different product, see the EU per-item customs charge.

How confident

Confirmed. Vietnam decision 2652/QD-BCT of 13 October 2026, the five-year term from 16 October 2026, the four countries, the product and the case number ER01.AD10 are corroborated on the Vietnamese trade remedies authority’s own site, which lists the polyester filament yarn sunset review dated 13 October 2026 for India, Indonesia, Malaysia and China. The tariff lines and the case timeline are from the Chinese trade remedies network’s case record.

Inferred. The container values in the cost table are stated inputs, chosen to convert a percentage into a bill, and are not a market price for polyester filament yarn. The 24-tonne net weight is a representative payload, not a verified figure for this product. The observation that the eight rows at the ceiling represent a cluster rather than a smooth spread is my reading of the annex.

What would change my mind. The producer rates themselves are single-source: they come from the Chinese trade remedies network’s compilation of the Vietnamese annex, and Vietnam’s own site did not yield the annex from Vietnam’s own site, whose document identifiers are generated in the page rather than present in the HTML. Access to the published annex would let me confirm the 3.36 per cent floor, the 17.45 per cent ceiling and the catch-all clause directly. A revision or correction notice from the Vietnamese authority would change the effective date or the rates. And if the unnamed-exporter row turned out not to be the maximum in the original Vietnamese text, the central point of this article would weaken.

The data point

The catch-all row for producers and exporters not named in the annex carries 17.45 per cent, which is the highest rate in the decision. Being unlisted costs 14.09 percentage points more than the lowest named rate — a difference decided by paperwork rather than by price.

For you

• Importers of polyester filament yarn into Vietnam: reconcile the exporting entity on your invoices against the annex before the next order cycle, because the rate attaches to the entity and not to the brand.
• Buyers who moved sourcing during the review: the five-year extension removes the option value of waiting. The rate you are paying is the rate for the term.
• Suppliers and their agents: a producer outside the annex pays the ceiling. An individual margin requires the exporter to request a review, so this is a conversation to have with the mill rather than with the buyer.
• Anyone comparing ASEAN origins: Indonesia and Malaysia are above the Chinese default under the same decision, and India is at 54.90 per cent, so an origin switch needs the rate checked before it needs a freight quote.

FAQ

Does this decision change the duty rate?

The rates continued at the same levels the original determination set in 2021, and the case record states the Chinese range as 3.36 to 17.45 per cent at both points. What the sunset review changed is the term: the measure now runs five more years from 16 October 2026. For a buyer, the practical effect of a continuance at unchanged rates is that the duty stops being a contingent cost and becomes a five-year input to the landed cost, which is what a sourcing decision needs.

My supplier is a trading company. Which rate applies?

The rate follows the entity named in the annex, and the annex groups producing entities with their associated trading arms. If the invoice is issued by a legal entity that appears in one of those groups, that group’s rate applies. If it appears nowhere in the annex, the catch-all row applies, and that row is the maximum. The work is clerical and worth doing once per supplier: take the exact registered name on the invoice and search the annex for it.

Why is India at 54.90 per cent when China is at 3.36 per cent?

The rates reflect the dumping margin found for each origin and, in the Chinese case, for each producer. A higher rate means a larger margin was established in the investigation. For a buyer this is useful as a price ceiling reference: it shows how far the same product from a different origin can be taxed under a single decision, and it is why origin switching has to be checked against the rate rather than assumed to be cheaper.

Does the duty apply to goods already shipped?

A continued measure applies from its effective date, 16 October 2026, to goods entered on or after that date. Consignments entered before it fall under the previous term of the measure rather than a gap, because a sunset review continues an existing measure rather than creating a new one. The date that matters for a consignment is the date of customs entry in Vietnam, so goods afloat at the start of the new term are assessed on arrival rather than on shipment.

How we calculated this

The duty is ad valorem, so it is a percentage of the CIF value declared at import, and the arithmetic converts a rate difference into a bill:

duty on a consignment = CIF value x rate

rate spread = 17.45% - 3.36% = 14.09 percentage points
ratio       = 17.45 / 3.36  = 5.19

per kilogram at a stated CIF of 1.00 dollar:
   3.36%  = 0.0336 dollars
  17.45%  = 0.1745 dollars
  spread  = 0.1409 dollars per kg

per tonne:            33.60 vs 174.50  = 140.90 dollars
40-ft, 24 t, 15,000 dollars CIF:
   3.36%  = 504 dollars
  17.45%  = 2,618 dollars
  spread  = 2,114 dollars

India at 54.90% on the same 15,000 dollars = 8,235 dollars

Replace the CIF value with your own invoice value and the rate with the row your exporter occupies. The percentages are from the published annex; the dollars follow from your own paperwork.

The point

A continued duty is usually reported as a rate, and the rate here is the least interesting part: it is unchanged. The annex is where the money is. Twenty-one rows, eight of them at the ceiling, and a catch-all that puts every unnamed exporter at the maximum — so for a buyer the question is not what Vietnam decided but which row their invoice falls in, and that is answerable before the order is placed.