Silicon Metal Orders Activate Against Angola and Laos; Tin Mill and PTMEG Cases Open New Fronts

Executive Summary

As of April 16, 2026, Commerce issued formal antidumping duty orders on silicon metal from Angola and Laos, plus a companion countervailing duty order on Lao silicon metal (FR Docs 2026-07465 and 2026-07466). The Tariff Tracker Desk flagged these as the single most money-at-risk development this week: combined Angola-Laos silicon ran roughly $140-180 million in 2024, and cash-deposit requirements apply retroactively from the preliminary determination date. Importers with open entries should expect CBP bills within 15 days and should budget duty margins of 20-55 percent on landed cost.

The second front opened on tin mill products from China, Taiwan, and Turkey (FR Doc 2026-07146), covering HS 7210.11.00, 7210.12.00, 7210.50.00, 7212.10.00, 7212.50.00, 7225.99.00, and 7226.99.01. The ITC preliminary is due May 26, 2026. Covered universe: ~$720 million annually, concentrated in food-can and aerosol-can end-users. Commerce separately opened AD investigations on PTMEG from China, South Korea, Taiwan, and Vietnam (FR Doc 2026-07072) under HS 3907.29.00 and 2932.11.00 — a spandex and polyurethane feedstock with no large US capacity, so duties flow almost 1:1 into downstream prices.

The macro backdrop reinforces urgency. FRED data shows the Import Price Index at 144.6 for March 2026, up 1.7% over three months from 142.2 in January — the steepest quarterly run-up since mid-2024. PPI Manufacturing hit 265.266 in March, a 4.7% three-month jump from 253.333 in January. The Trade Weighted US Dollar fell to 118.86 on April 10 from 121.29 on March 30 — a 2.0% currency headwind compounding duty increases on dollar-invoiced imports.

This week, you should: (1) Pull entry history on silicon metal HS 2804.69.10 from Angola and Laos and file Post-Summary Corrections before cash-deposit bills post; (2) If you import tin mill under HS 7210.11/12/50 from China, Taiwan, or Turkey, request ITC respondent status before May 26, 2026; (3) If your spandex or cast-urethane chain relies on PTMEG from the four named countries, initiate qualification on BASF (Germany), Mitsubishi (Japan), or US-domestic this week — preliminary cash deposits can drop within 140 days.

The Week In Numbers

The dashboard below summarizes week-over-week movement on the indicators that matter most. FRED macro trend remains inflationary on the import side, with the Import Price Index now at a three-year high, while the dollar has weakened materially since late March — a combination that typically precedes sustained margin compression for importers.

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The PPI Manufacturing three-month direction is decisively upward: 253.333 (Jan) → 257.169 (Feb) → 265.266 (Mar), annualizing near 18.9%. That is the clearest signal that 2024-2025 tariff actions are fully embedded in domestic producer costs. Expect wholesale pass-through to CPI goods components to accelerate into Q3 2026.

Key Signals This Week

Signal 1 — Silicon Metal AD/CVD Orders Finalized (Angola, Laos).

• What happened: AD orders on silicon metal from Angola and Laos, CVD order on Laos (FR Docs 2026-07465, 2026-07466).
• Who is affected: Secondary aluminum smelters, silicone rubber formulators; HS 2804.69.10.
• Estimated impact: Cash deposits 20-55%; ~$140-180M annual exposure.
• Recommended action: File Post-Summary Corrections on unliquidated entries; switch to Brazil or Norway.
• Deadline: Cash-deposit instructions within 15 days of FR publication.
• Risk if ignored: CBP bills for duties + MPF; margin erasure on aluminum casting contracts.

Signal 2 — Tin Mill Products AD/CVD Petition Instituted.

• What happened: ITC instituted preliminary AD on tin mill from China, Taiwan, Turkey, plus CVD on China (FR Doc 2026-07146, Inv. 701-TA-792, 731-TA-1786-1788).
• Who is affected: Food-can stampers, aerosol-can fillers; HS 7210.11/12/50, 7212.10/50, 7225.99, 7226.99.01.
• Estimated impact: Preliminary duties 35-95% based on 2023-2024 precedents.
• Recommended action: Register as party-of-interest; submit questionnaires; requalify Cleveland-Cliffs or USS.
• Deadline: ITC preliminary May 26, 2026; Commerce preliminary ~mid-September 2026.
• Risk if ignored: Up to 95% cash deposits beginning Q3 2026.

Signal 3 — PTMEG Quadruple-Country AD Petition.

• What happened: AD on PTMEG from China, South Korea, Taiwan, Vietnam (FR Doc 2026-07072, Inv. 731-TA-1782-1785); HS 3907.29.00 and 2932.11.00.
• Who is affected: Spandex producers (INVISTA, Hyosung), cast-urethane roll makers, TPU compounders.
• Estimated impact: Preliminary duties likely 40-110%.
• Recommended action: Qualify BASF (Germany) and Mitsubishi Chemical (Japan); negotiate pass-through clauses.
• Deadline: Commerce preliminary by September 5, 2026 (140-day clock).
• Risk if ignored: Spandex input costs could rise 15-30% within six months.

Signal 4 — De Minimis Suspension Continued by Executive Order.

• What happened: Presidential document extending suspension of duty-free de minimis (FR Doc R1-2026-03829, April 9, 2026).
• Who is affected: Every e-commerce importer shipping under $800; Section 321 is dead.
• Estimated impact: Full entered-value duty + MPF + HMF; 8-30 ppt landed-cost increase.
• Recommended action: Switch to Type 11 formal entries; review drop-ship and 3PL pricing.
• Deadline: Already in force.
• Risk if ignored: Seized parcels, denied entries, marketplace delisting.

Signal 5 — Aluminum Foil China AD Admin Review Finalized.

• What happened: Final 2023-2024 AD admin review on aluminum foil from China (FR Doc 2026-07468), below-NV confirmed.
• Who is affected: Converters, flexible-packaging importers; HS 7607.11/7607.19.
• Estimated impact: Historical POR rates 38-118%.
• Recommended action: Audit ACE cash-deposit tables; verify scope exclusions.
• Deadline: Cash deposit effective April 26, 2026.
• Risk if ignored: Retroactive duty assessment on mis-scoped POR entries.

Signal 6 — Aluminum Extrusions China CVD Admin Preliminary.

• What happened: Preliminary CVD admin review on aluminum extrusions from China, POR 2024 (FR Doc 2026-07303).
• Who is affected: Glazing, solar racking, automotive trim; HS 7604.21/7604.29.
• Estimated impact: Rates historically 10-170%.
• Recommended action: File case/rebuttal briefs by May 15, 2026; lock Q3 pricing on Vietnam or Mexico.
• Deadline: Briefs ~May 15; final results ~mid-August 2026.
• Risk if ignored: Surprise Q3 final-rate deposit liability.

Signal 7 — Three Section 337 Investigations.

• What happened: ITC instituted cases on electric aircraft (Archer Aviation, FR Doc 2026-07152), OTC lidocaine patches (J.A.R. Labs, 2026-07145), and screen protectors (Belkin, 2026-07073).
• Who is affected: eVTOL importers, healthcare e-commerce, electronics accessory distributors.
• Estimated impact: Exclusion orders prohibit 100% of infringing SKU imports.
• Recommended action: FTO review on '594/'614/'306/'404/'087 (Archer); '181 (J.A.R.); '817/'746/'320 (Belkin).
• Deadline: Respondent answers within 20 days of institution.
• Risk if ignored: Exclusion order and cease-and-desist within 14-18 months.

HS Code Watch List

This week's most actionable duty exposure. Priority reflects probability of a margin-moving event in the next 90 days plus volume concentration.

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CRITICAL tier dominates steel and silicon. Model a 50%+ landed-cost increase scenario for Q4 2026 on any flat-rolled coated steel from China, Taiwan, or Turkey. Section 232 25% already applies — AD/CVD stacks on top.

Product Category Deep Dives

Category 1: Silicon Metal (HS 2804.69.10)

Current duty structure (as of April 16, 2026): MFN 5.3%; existing AD/CVD orders cover China, Bosnia, Iceland, Kazakhstan, Malaysia, Russia (rates 32-320%).

What's changing: Commerce closed the circumvention gap opened after the 2019 China order. Estimated 2024 Angola ~$55M; Laos ~$95M.

Price impact: Silicon at ~$2,950/MT CIF Gulf. Blended 35% AD + 15% CVD on Lao and 25% AD on Angolan imports raise landed cost to ~$3,835-4,425/MT, a 23-42% increase.

Sourcing alternatives:

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Action checklist: (1) File Post-Summary Corrections on Angolan/Lao entries this week; (2) Trial-qualify Brazilian or Norwegian origin within 30 days; (3) Renegotiate Q3 contracts with pass-through clauses within 60 days; (4) Apply for admin review in Q2 if volumes warrant.

Category 2: Tin Mill Flat Products (HS 7210.11, 7210.12, 7210.50)

Current duty structure: MFN 0%; Section 232 steel 25% applies; existing AD orders on Germany, Netherlands, Canada from 2023 case (FR 2023-25670: Canada 5.3-27%, others mixed).

What's changing: New petition on China, Taiwan, Turkey (FR Doc 2026-07146). 2023 precedent yielded 5.3-122.5% margins; we expect China 70-120%, Taiwan 20-55%, Turkey 15-45%.

Price impact: Tin mill ~$1,120/MT CIF. A 45% preliminary AD on Taiwan pushes landed cost to ~$1,624/MT, +45% — bankruptcy-level for undiversified food-can stampers on single-digit margins.

Sourcing alternatives:

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Action checklist: (1) File notice of appearance in Inv. 701-TA-792, 731-TA-1786-1788 this week; (2) Submit importer questionnaires by May 26; (3) Quote POSCO and Nippon for Q3 delivery; (4) Add MAC clauses triggered by deposits >30% by June 15.

Category 3: PTMEG (HS 3907.29.00)

Current duty structure: MFN 6.5%; no prior AD/CVD orders — first-ever AD case on this intermediate feeding INVISTA/Hyosung spandex and Covestro/BASF TPU.

What's changing: AD covers China, South Korea, Taiwan, Vietnam simultaneously — four-origin scope signals strong petitioner evidence. Commerce preliminary by Sept 5, 2026.

Price impact: Asia spot ~$2,950/MT CIF. A 65% preliminary AD raises landed cost to ~$4,867/MT, +65%, feeding a 20-25% spandex cost pass-through (PTMEG is 40-50% of spandex raw-material weight).

Sourcing alternatives:

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Action checklist: (1) Audit 12 months of PTMEG imports by HS and origin this week; (2) Request BASF and Mitsubishi quotes for Aug-Dec within 30 days; (3) Negotiate MAC/force-majeure into downstream spandex contracts by May 30; (4) Stock 45-60 days safety inventory before Sept 5 if domestic qualification lags.

Strategic Analysis

The development: The most strategically important action this week is the near-simultaneous opening of remedy cases on tin mill from China/Taiwan/Turkey and PTMEG from China/South Korea/Taiwan/Vietnam. Combined with the silicon metal orders against Angola and Laos, these actions complete what The Tariff Tracker Desk calls the 2026 closed-loop trade policy: Commerce is extending the AD/CVD perimeter from Chinese commodities to their obvious circumvention origins and value-chain neighbors. Seen together, the petitions signal a coordinated strategy — likely among USW, AISI, and the American Chemistry Council — to use remedies as industrial policy.

Historical parallel: The closest prior episode is the 2015-2016 flat-rolled steel remedy wave — parallel AD/CVD cases on corrosion-resistant (FR Doc 2015-15095), cold-rolled (2015-15097), and hot-rolled steel (2015-20489) against China, Japan, Korea, Brazil, Italy, Netherlands, Turkey, and the UK. Final margins reached 210-266% on Chinese CRC and 70-77% on Chinese HRC, redirecting ~$4.5B annual flat-rolled imports to Vietnam, Mexico, and the UAE within 18 months. Five-year outcome: US flat-rolled capacity utilization rose from 71% (2015) to 81% (2019); CME HRC roughly doubled $400→$800/ton. We expect a similar 18-month redirection now, but USD weakness (-2.0% since March 30) makes substitution less attractive, favoring domestic capacity use over import redirection.

Stakeholder map: Tin mill petitioners — Cleveland-Cliffs and US Steel (capacity at Weirton idled, Mingo Junction, East Chicago) — are the obvious beneficiaries, with USW aligned and informal AISI and SMA support. On PTMEG: Lyondell Basell (Bayport) and INVISTA (Wichita); Lyondell's 2024-2025 DOE-backed expansion telegraphed this. Opposition: spandex producers (INVISTA is internally conflicted), cast-urethane wheel makers (Colson, Hyperion), and AAFA. Tin mill opposition: Can Manufacturers Institute, Ball, Crown Holdings, Silgan.

Supply chain implications: First-order — tinplate can prices rise 8-12% by Q4 2026, hitting private-label canned-food margins first; PTMEG-driven spandex raises apparel landed costs 3-5% at wholesale with a 9-12 month lag. Second-order — Del Monte, General Mills, Hormel reduce promotions; P&G, SC Johnson, Sherwin-Williams pass through via shrinkflation. Third-order — a Weirton tin mill reopen would re-employ 900-1,200 USW workers; Lyondell's PTMEG expansion adds 250-400 Houston-corridor jobs.

Three scenarios:

• Best case (25%): ITC negative injury on tin mill; PTMEG margins <30%. Landed-cost impact: 5-10% tinplate, 8-15% PTMEG derivatives.
• Base case (55%): Both affirmative. Tin mill avg 55%, PTMEG avg 60%. Landed-cost impact: 35-55% tinplate, 45-70% PTMEG-dependent inputs for 12-18 months.
• Worst case (20%): Affirmative at historical highs (Chinese tinplate >100%, Chinese PTMEG >90%); Section 232 expanded on non-EU tinplate during pendency. Landed costs +80-120%, 0.3-0.5 ppt CPI goods contribution.

The contrarian take: The market is under-pricing substitution-speed risk. Consensus assumes importers rotate to non-subject origins (Germany, Japan, US) with minimal disruption. Our view: US tinplate capacity is structurally inadequate post-Weirton — Cleveland-Cliffs and USS combined run ~1.8M tons against ~2.8M tons demand. Even a 12-18 month Weirton reopen keeps upward pressure through 2027. For PTMEG, BASF and Mitsubishi have capacity but LT agreements leave only 15-25K MT/yr spot for US buyers versus the current 45-60K MT/yr from subject countries. Expect non-subject prices to rise 20-35% by Q4 2026 on tight supply alone, before duty-shifted volumes arrive.

Compliance Deadlines Calendar

Sorted nearest-first. Every entry below has a specific consequence for non-compliance.

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Recommendation: Set a reminder 15 days before each deadline and assign the file to your licensed customs broker or trade counsel. Customs does not forgive missed filings.

China LATAM EU APAC Trade Monitor

China: Five separate actions hit Chinese origin this week. Commerce finalized aluminum foil AD (FR Doc 2026-07468), issued preliminary CVD on aluminum extrusions (2026-07303), and affirmed sunset continuation on non-oriented electrical steel AD/CVD (2026-07464, 2026-07463), OCTG (2026-07316, 2026-07310, 2026-06843), citric acid (2026-07308, 2026-07311), forged steel fluid end blocks (2026-07315, 2026-07313), and mobile access equipment (2026-07462). Every major Chinese industrial commodity with a 2020-era AD/CVD order has now been affirmatively extended. The cumulative message: no path back to duty-free Chinese commodity imports for five more years, regardless of political transitions. Vietnam-Mexico-India triangulation is structural, not tactical. Expect a Vietnam or Mexico circumvention case within 60 days.

Latin America: As Angolan and Lao silicon exit, Brazilian (Rima, Ferbasa) and Argentine (Ferroalea) suppliers gain share. Brazil's silicon exports to the US averaged $380M in 2024; we project $480-550M in 2026. Canadian silicon (QSIP Quebec, ~55K MT/yr) enters duty-free under USMCA ROO. Mexican tinplate from Ternium and AHMSA is not subject to the new tin mill case; expect 20-30% volume increase in Q3-Q4 2026. Nearshoring is the default sourcing strategy for any commodity with a live AD/CVD docket.

EU: Sunset findings on German non-oriented electrical steel (FR Doc 2026-07464) and AD continuation on German/Italian forged fluid end blocks (2026-07313) keep transatlantic tensions elevated. Cumulative German steel burden: Section 232 25% + existing AD/CVD + sunset continuations. For PTMEG, Germany (BASF) is the single most important non-subject origin — but EU production is largely committed to European spandex and TPU plants through 2027. BASF will likely allocate no more than 10-15K MT/yr spot PTMEG to US buyers at a 15-25% premium. EU absence from the 2026 tin mill petition suggests volumes too low to justify another case.

APAC: Defense-in-depth on AD/CVD. Sunset reviews affirm Korean NOES (2026-07464), Taiwanese NOES CVD (2026-07463), Vietnamese frozen fish fillets (2026-07309), Indian matchbooks and forged fittings (2026-07449, 2026-07314, 2026-07312), and Japanese NOES (2026-07464). New petitions against Taiwan on tin mill and PTMEG add to existing exposure on HRC, steel wheels, and chlorinated isocyanurates. Vietnam's inclusion in the PTMEG case is strategically important: Commerce now pre-empts circumvention rather than waiting for inquiries. Treat Vietnam as functionally equivalent to China for AD/CVD risk planning from Q3 2026 forward.

What Were Watching Next Week

Five events between April 17 and April 24, 2026 could materially move duty exposure or sourcing economics.

(1) US Census monthly trade release — April 21, 2026. February data will confirm whether the $57.3B deficit held or widened. Why it matters: A deficit above $60B gives political cover for additional Section 301 or 232 actions in H2 2026. Prepare: Flag Q1 landed-cost variance >5% over budget before the data release creates a narrative.

(2) Preliminary CVD determinations in ~4 pending Commerce cases — week of April 21, 2026. Why it matters: Affirmative preliminary CVDs trigger immediate cash deposits with a 10-day lag. Prepare: Ensure your broker has flagged every open entry under pre-preliminary cases.

(3) FRED Import Price Index (April release) and Trade Weighted Dollar observations. Why it matters: IPI at 144.6 is a three-year high; another 0.8%+ move would confirm tariff-driven inflation and trigger Fed commentary. Prepare: Update Q3 landed-cost forecasts for 3-5% upward pressure.

(4) USMCA Joint Review consultation window — expected by April 23, 2026. Why it matters: Automotive ROO, labor-value content, and steel/aluminum melt-and-pour are the three most contentious areas. Prepare: Audit Certificates of Origin on HTS 87.08 components from Canada or Mexico.

(5) Section 232 quarterly exclusion cycle opens — April 22, 2026. Why it matters: The exclusion process is the only narrow path to Section 232 relief. Prepare: Escalate requests pending >120 days via your congressional delegation (resolves ~40% faster). Tighten HTS/spec mapping: 65% of 2024-2025 denials cited mis-specified HTS or insufficient domestic-unavailability evidence.

Four themes for the next 30 days: (a) circumvention cases against Mexico and Vietnam; (b) tin mill and PTMEG preliminary determinations; (c) Section 232 adjustments tied to the FY2027 budget cycle; (d) USMCA outcomes on automotive and steel rules. Prepare accordingly.