Tin Mill Products Antidumping Duties: New Margins

Preliminary tin mill products antidumping duties on goods from Taiwan and Turkiye will alter entry requirements, cash flow, and compliance risk for affected U.S. importers. With margins reaching 42.06% and retroactive suspension applicable to one exporter, companies must quickly connect product scope, supplier identity, and entry data.

Preliminary Margins Create Immediate Entry Consequences

The preliminary affirmative determinations cover tin mill products from Taiwan and Turkiye. They follow a period of investigation running from April 1, 2025, through March 31, 2026. The determinations entered public inspection on November 9, 2026, with publication scheduled for November 10, 2026.

Publication is the key operational date for most affected entries. Beginning on that date, CBP will generally suspend liquidation of subject merchandise and require antidumping cash deposits at the applicable preliminary rate. Importers, customs brokers, and sureties should ensure that entry instructions, bond exposure calculations, and landed cost models reflect the new requirements.

Preliminary Rates by Exporter and Country

For Turkiye, Tosyali Toyo Celik A.S. and Toscelik Profil ve Sac Endustrisi A.S. are treated as a single entity and assigned a preliminary margin of 3.89%. Tatrix Internation received a preliminary margin of 42.06%, based on facts available with adverse inferences. The all-others rate for Turkiye is 3.89%.

For Taiwan, Ton Yi Industrial Corporation received a preliminary margin of 18.07%. The all-others rate is also 18.07%.

These percentages are preliminary cash deposit rates rather than necessarily the final duty liability. The final results may change after verification, briefing, and completion of the administrative process. The ultimate outcome also depends on the final injury phase. Nevertheless, importers must generally fund the required deposits while the investigation continues.

A rate difference of several percentage points can materially affect working capital. The 42.06% Tatrix rate presents a particularly significant exposure for importers with high-value steel entries or extended inventory cycles. Procurement teams should avoid treating the deposit as a routine customs charge. It should be incorporated into supplier negotiations, purchase order terms, pricing decisions, and financial reserves.

Revised Scope Language Requires Product-Level Review

Antidumping exposure does not depend only on country of origin or tariff classification. The written scope language generally controls whether merchandise is subject to an investigation. Commerce preliminarily modified the scope language from the version used when the investigations began, making a new product-level assessment essential.

Tin mill products are used by can manufacturers, food packagers, steel service centers, and other industrial buyers. Merchandise descriptions may involve coating, dimensions, material composition, processing, or end-use terminology. Internal product names and commercial descriptions do not necessarily resolve scope coverage.

Classification Is a Screening Tool, Not the Final Test

Importers should compare technical specifications, mill certificates, purchase orders, invoices, and product literature against the revised scope. Harmonized Tariff Schedule classifications can help identify potentially covered entries, but classification alone generally does not determine antidumping scope.

A reliable review should connect each imported SKU to its manufacturer, exporter, country of origin, physical characteristics, and entry history. Companies should also determine whether brokers have sufficient documentation to declare the correct antidumping case number and exporter-specific cash deposit rate.

Supplier identity requires particular attention. A product purchased through a trading company may have a manufacturer or exporter relationship that affects the applicable rate. Using the all-others rate without validating the relevant supply chain parties can create deposit errors, post-entry corrections, or liquidation exposure.

Importers should preserve the documentation supporting any conclusion that merchandise falls outside the scope. That file should explain the product characteristics evaluated and reconcile those characteristics to commercial and entry records. If coverage remains uncertain, the company may need specialized trade counsel to evaluate available scope procedures.

Because the scope was modified at the preliminary stage, prior assumptions should not be carried forward without review. Even companies that examined the initiation language should repeat the analysis using the current language before new entries are filed.

Critical Circumstances Expand Retroactive Risk

The preliminary critical circumstances finding for Tatrix creates an additional issue beyond deposits on future entries. For Tatrix merchandise, suspension of liquidation generally reaches unliquidated entries made on or after the date 90 days before publication of the preliminary determination.

This retroactive period requires importers to identify historical entries rather than focusing only on shipments arriving after publication. Entries made during the lookback period may remain exposed even if they were filed before the preliminary cash deposit instructions became effective.

Build a Defensible 90-Day Entry Population

Importers buying Tatrix merchandise should promptly extract entry data covering at least the 90-day period before November 10, 2026. The review should include entry dates, entry numbers, manufacturers, exporters, sellers, quantities, entered values, liquidation status, and declared tariff classifications.

The analysis should distinguish entries that remain unliquidated from entries that have already liquidated. Importers should also identify goods purchased through intermediaries where Tatrix may not be obvious from the commercial invoice. Mill documentation, production records, and supplier declarations can help establish whether the merchandise is connected to the named exporter.

Critical circumstances can also affect surety exposure. A substantial retroactive deposit requirement may change an importer’s risk profile or increase pressure on continuous bond sufficiency. Importers and brokers should coordinate with sureties early rather than waiting for a bond insufficiency notice or entry rejection.

Coordinate Compliance, Finance, and Procurement

Trade compliance teams should provide finance with a quantified range of potential deposit exposure. Procurement should examine whether contracts allocate antidumping costs between buyer and seller, while legal teams should assess representations concerning origin, manufacturer, and exporter identity.

Companies should also monitor the final determination and the final injury phase. Taiwan’s final determination has been postponed, and provisional measures have been extended. Preliminary rates can be revised, but entries made during the provisional period may remain tied to later liquidation instructions. Accurate entry records and supplier mapping are therefore essential throughout the case lifecycle.

Frequently Asked Questions

When do the preliminary cash deposit requirements begin?

For most subject tin mill products from Taiwan and Turkiye, suspension of liquidation and cash deposit requirements are scheduled to begin upon publication on November 10, 2026. Importers should confirm that entry filings made on or after the effective date use the proper case information and rate.

Tatrix merchandise is different because of the preliminary critical circumstances finding. Suspension may apply to unliquidated entries made during the 90 days before publication. Companies should not assume that pre-publication entries are outside the investigation.

Are the preliminary margins the final amount importers will owe?

Not necessarily. Preliminary margins establish the deposits generally required while the investigation proceeds. Final margins may increase, decrease, or remain unchanged after the final determination process.

Cash deposits are security for potential antidumping liability. The final amount due is normally determined through later liquidation instructions and may depend on the final investigation outcome or subsequent administrative proceedings. Importers should treat deposits and final duty liability as related but distinct financial events.

How should an importer determine whether a product is in scope?

The importer should compare the merchandise’s technical characteristics with the current written scope. Relevant records may include mill certificates, coating specifications, dimensions, chemistry, production descriptions, invoices, and purchase orders.

Tariff classification is useful for screening but is generally not conclusive. Importers should retain a documented rationale for products treated as outside the scope. Ambiguous products may require review by experienced customs counsel, particularly when commercial terminology does not align neatly with the scope language.

Which rate applies when merchandise is purchased through a trader?

The answer generally depends on the manufacturer, exporter, transaction structure, and applicable cash deposit instructions. The seller shown on an invoice may not be the party associated with a named rate.

Importers and brokers should map the complete transaction chain before filing. Unsupported assumptions can lead to use of an incorrect company-specific rate or all-others rate. Supplier questionnaires should request the legal names and addresses of manufacturers, exporters, trading companies, and related entities.

Are antidumping duties eligible for duty drawback?

Antidumping duties and antidumping cash deposits are not eligible for drawback under 19 U.S.C. 1677h. Exporting or destroying the imported tin mill products does not make those antidumping amounts refundable through a drawback claim.

Ordinary customs duties paid on the same entries may still be eligible for drawback when the statutory and operational requirements are met. Importers should therefore separate ordinary duties from antidumping deposits in their data and recovery calculations. Excluding antidumping amounts should not prevent a company from evaluating legitimate drawback opportunities for other eligible duties, taxes, and fees.

What should customs brokers do before filing affected entries?

Brokers should obtain clear manufacturer and exporter information, verify the country of origin, review the revised scope, and apply the appropriate antidumping case number and deposit rate. They should also identify conflicting or incomplete commercial documents before transmission.

For Tatrix-related transactions, brokers should help importers locate entries within the retroactive period. The importer remains responsible for its declarations, but a disciplined broker workflow can reduce rate selection errors and improve the quality of the historical entry review.

How Stable Software Can Help

Preserve Eligible Drawback Without Including AD Duties

The new deposits increase landed cost, but antidumping amounts cannot be recovered through drawback. Importers may still have eligible ordinary customs duties on the same entries or elsewhere in their import and export activity.

DrawbackAI gives U.S. customs brokers duty drawback software they can white-label for importer clients and use to file under their own filer code. Stable Software charges a flat software license and never takes a percentage of the refund. This structure allows brokers to build a drawback service while maintaining control of client relationships and filings. Importers and brokers evaluating tin mill entry data can use the same review period to separate non-drawback-eligible antidumping deposits from ordinary duties that may qualify for recovery.

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