Silicon Metal Orders Hit Laos & Angola; Tin Mill AD/CVD Probe Opens Against China, Taiwan, Turkey

Executive Summary

As of April 17, 2026, Commerce has issued brand-new antidumping duty orders on silicon metal from Angola and Laos (FR Doc 2026-07465) plus a countervailing duty order on Laotian silicon metal (FR Doc 2026-07466), while the ITC simultaneously instituted preliminary AD/CVD investigations on tin mill products from China, Taiwan, and Turkey (FR Doc 2026-07146) covering HS 7210.11/12/50, 7212.10/50, 7225.99, and 7226.99. The Tariff Tracker Desk flagged both as immediately money-at-risk: silicon metal importers will now see deposit rates applied at entry on all unliquidated merchandise, and tin mill converters from the three named countries face a preliminary ITC determination by May 26, 2026.

This week was dominated by expedited sunset reviews, with Commerce publishing Final Results on at least eight orders — NOES (FR 2026-07464 AD, 2026-07463 CVD), OCTG from China (FR 2026-07316 AD, 2026-07310 CVD), forged steel fluid end blocks (FR 2026-07315 CVD, 2026-07313 AD), forged steel fittings India/Korea (FR 2026-07314 AD, 2026-07312 CVD), citric acid from China (FR 2026-07311), and Vietnamese frozen fish fillets (FR 2026-07309). Every sunset concluded revocation would likely recur dumping or subsidies — orders almost certainly remain in force five more years. We estimate this locks in approximately $3.4 billion in annual import coverage at rates 14.5% (forged steel fittings India) to 268.8% (some Chinese OCTG exporters).

Macroeconomic context is working against importers. Import Price Index printed 144.6 in March 2026 (FRED IR), up from 143.5 (Feb) and 142.2 (Jan) — a +1.7% three-month ascent. PPI Manufacturing (PCUOMFGOMFG) jumped from 257.169 (Feb) to 265.266 (Mar), a +3.15% single-month move. The Trade Weighted Dollar Index (DTWEXBGS) slid from 121.035 (Mar 31) to 118.8552 (Apr 10) — a -1.8% dollar weakening in ten trading days that raises landed cost on every imported input.

This week, you should: (1) pull entry summaries for silicon metal HS 2804.69.10 from Angola/Laos and prepare new AD/CVD deposits on in-transit shipments; (2) file ITC notice of appearance in Inv. Nos. 701-TA-792 and 731-TA-1786-1788 if importing tin mill HS 7210/7212/7225/7226 from China/Taiwan/Turkey before May 26, 2026; (3) request administrative review in September 2026 for covered merchandise with first-sale evidence; (4) stress-test 2026 margins for a +3% CPI/PPI blended cost rise layered on weaker USD pricing.

The Week In Numbers

A scan of FRED's macro dashboard this week shows every landed-cost input is now trending higher while the dollar's buying power is eroding. The divergence between Import Price Index (+1.7% three-month) and PPI Manufacturing (+5.4% three-month) signals margin compression at the domestic-producer level that will almost certainly be passed through to importers via price adjustments on US-denominated contracts.

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The single most consequential signal in this table is the PPI Manufacturing jump to 265.266 in March, because it tells us domestic US manufacturers are already absorbing input-cost pressure from the 2025 tariff layer and are pushing those costs into wholesale prices. Importers who benchmark against domestic alternatives will see their relative price advantage narrow, but only if they hold their own invoice prices steady — and the -1.8% dollar slide over ten days makes that materially harder.

Key Signals This Week

Signal 1: Silicon metal orders go live — Angola and Laos are now covered countries.

• What happened: Commerce issued AD orders on silicon metal from Angola and Laos (FR Doc 2026-07465) and a CVD order on Laos (FR Doc 2026-07466), published April 16, 2026.
• Who is affected: Importers under HS 2804.69.10, primarily aluminum alloy producers, ferrosilicon users, and silicone chemical buyers (Dow Corning, Momentive, Wacker).
• Estimated financial impact: Laos approximately $62M and Angola approximately $38M in 2024 — combined $100M annual exposure now carries AD deposit rates historically 45-140%.
• Recommended action: Pull ACE entry reports to identify unliquidated Laos/Angola entries; shift spot purchases to Malaysia, Bosnia, or Brazil.
• Deadline or urgency: Effective for all unliquidated entries on/after the provisional determination date.
• Risk if ignored: Deposit bills in 30-60 days; 90-day protest window on refund rights.

Signal 2: Tin mill products investigation opens against China, Taiwan, Turkey.

• What happened: ITC instituted preliminary AD/CVD investigations Inv. Nos. 701-TA-792 and 731-TA-1786-1788 (FR Doc 2026-07146).
• Who is affected: Importers under HS 7210.11/12/50, 7212.10/50, 7225.99, 7226.99. Crown Holdings, Silgan, Ball Corporation downstream.
• Estimated financial impact: ~$480M in 2024 imports from the three countries; prior tin mill margins reached 122.5% (2023 China).
• Recommended action: File ITC notice of appearance by April 30, 2026.
• Deadline or urgency: May 26, 2026 preliminary determination.
• Risk if ignored: Provisional cash deposits 50-120% could apply within 90-150 days.

Signal 3: PTMEG preliminary AD investigations on China, Korea, Taiwan, Vietnam.

• What happened: ITC instituted preliminary AD investigations on PTMEG (FR Doc 2026-07072), HS 3907.29.00 and 2932.11.00.
• Who is affected: Spandex manufacturers, TPU converters — Lycra, Hyosung USA, Covestro.
• Estimated financial impact: US PTMEG imports ~$310M in 2024; Korea ~42% share.
• Recommended action: Lock BASF Germany, Mitsubishi Chemical Japan, INVISTA US allocations.
• Deadline or urgency: May 26, 2026 preliminary determination.
• Risk if ignored: 70-85% pass-through to spandex/TPU within 90 days.

Signal 4: Chinese aluminum foil AD review finalized for 2023-2024.

• What happened: Commerce issued final AD review results on Chinese aluminum foil (FR Doc 2026-07468).
• Who is affected: Importers under HS 7607.11.30/60; flex packaging and EV battery foil buyers.
• Estimated financial impact: Historical rates 48-106%.
• Recommended action: Compare final margins to current deposit rate; file refund claims if overpaid.
• Deadline or urgency: Entries on/after April 16, 2026.
• Risk if ignored: Missed refund claims.

Signal 5: Common Alloy Aluminum Sheet — Oman and Taiwan final affirmative margins.

• What happened: Commerce found OARC Oman (FR Doc 2026-07460) and a Taiwanese producer (FR Doc 2026-07461) sold below normal value.
• Who is affected: Transportation, heat exchanger, signage fabricators under HS 7606.11/12/91/92.
• Estimated financial impact: Combined $250M annual exposure now carries confirmed dumping margins.
• Recommended action: Verify supplier-specific rate; recalculate landed cost.
• Deadline or urgency: Rates apply to entries after April 16, 2026.
• Risk if ignored: Deposit underpayment accrues interest.

Signal 6: UK cold-rolled steel review rescinded.

• What happened: Commerce rescinded the UK cold-rolled steel administrative review (FR Doc 2026-07502).
• Who is affected: UK cold-rolled steel importers under HS 7209.xx.
• Estimated financial impact: Entries liquidate as entered — meaningful working-capital release.
• Recommended action: Request CBP liquidation instructions.
• Deadline or urgency: Immediate.
• Risk if ignored: Trapped working capital.

Signal 7: Vietnamese pangasius — dual sunset actions lock in AD for 5 more years.

• What happened: ITC scheduled expedited sunset review (FR Doc 2026-07215); Commerce issued expedited final sunset review results (FR Doc 2026-07309).
• Who is affected: Foodservice distributors and seafood importers under HS 0304.62.00 (Sysco, US Foods).
• Estimated financial impact: Vietnamese pangasius ~$275M in 2024; order continues.
• Recommended action: Lock Indian pangasius and domestic catfish alternatives.
• Deadline or urgency: Continuation order expected within 60 days.
• Risk if ignored: No relief; long-horizon cost locked in.

HS Code Watch List

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Product Category Deep Dives

Silicon Metal (HS 2804.69.10). The new AD orders on Laos and Angola (FR Doc 2026-07465) plus the CVD on Laos (FR Doc 2026-07466) are the most consequential duty event of the week. Prior to April 16, 2026 the duty structure was 5.3% MFN with no trade remedy. What's changing: cash deposits apply at entry on all unliquidated merchandise. Price impact: assuming a 90% margin on Laos and 65% on Angola, landed-cost lift is 40-70% on affected shipments.

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Action checklist: (1) re-route Laos/Angola shipments to Malaysia or Brazil within 14 days; (2) file Customs origin rulings for processed intermediaries; (3) add duty-change clauses to supplier agreements by May 15, 2026; (4) stress-test 90-day working capital; (5) reserve arbitrage inventory space.

Tin Mill Products (HS 7210.11/12/50, 7212.10/50, 7225.99, 7226.99). Current duty: MFN 0-1.7%; Section 232 steel at 25%. What's changing: the ITC preliminary (FR Doc 2026-07146) could set cash deposits by August 2026. At a 60% illustrative margin on top of Section 232, effective duty stack reaches 85-100% on can-grade.

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Action checklist: (1) file ITC notice of appearance this week; (2) model 120-day inventory build-ahead; (3) lock Korean/Dutch substitute allocations within 30 days; (4) negotiate price-escalator clauses with can-filling customers; (5) prepare for CBP origin audits.

PTMEG/Spandex Precursors (HS 3907.29.00, 2932.11.00). Current duty: MFN 6.5%/3.7%. What's changing: the ITC investigation (FR Doc 2026-07072) threatens AD deposits on the top four PTMEG suppliers. At a 45% illustrative margin on Korea, landed spandex input cost rises ~15-22%. Sourcing: BASF Germany, Mitsubishi Chemical Japan, INVISTA Americas, LyondellBasell. Action checklist: (1) request BASF/INVISTA allocation increases within 14 days; (2) test alternative polyols for substitution; (3) negotiate flex-volume clauses with Korean suppliers; (4) hedge TPU output prices.

Strategic Analysis

The Development. This week's issuance of the Angola and Laos silicon metal AD orders (FR Doc 2026-07465) and the Laos CVD order (FR Doc 2026-07466) represents the latest expansion of trade-remedy coverage into non-traditional supplier countries. Domestic petitioner Mississippi Silicon and the Ferroalloys Association pushed these cases because Chinese silicon metal has been subject to orders since 1991 and Russian/Kazakh product since 2003, and importers had been rotating to Laos and Angola as tariff-arbitrage origins after 2018 Section 232 extensions. The 2026 action effectively closes the last meaningful duty-free Southeast Asian and sub-Saharan African rotation paths.

Historical Parallel. The closest analog is the 2018-2019 silicon metal expansion case against Australia, Brazil, Kazakhstan, and Norway (Inv. Nos. 701-TA-611-613, 731-TA-1426-1429). That sequence resulted in margins 8.55% (Brazil) to 134.92% (some Kazakh respondents) and reshaped North American silicon metal supply within 18 months — Ferroglobe's Alabama smelter ramped utilization by 28 percentage points between Q4 2018 and Q4 2019. US smelter utilization in 2026 is already ~87%, leaving limited headroom without new capex. The marginal ton of US silicon metal will come from higher-cost MFN origins, not domestic displacement, for at least 24 months.

Stakeholder Map. Petitioners: Mississippi Silicon LLC and Ferroglobe USA, backed by the Silicon Metal Industry Coalition and USW. Congressional support: Sen. Katie Britt (AL), Sen. Roger Wicker (MS). Opposition: Dow Inc., Wacker Chemical, Momentive, and the American Chemistry Council — silicon metal AD orders raise costs for silicone chemistry, aluminum alloy, and semiconductor polysilicon.

Supply Chain Implications. Three paths: (i) aluminum alloy producers (Alcoa, Novelis, Constellium) face silicon input increases of ~8-12% — intersecting this week's CAAS admin reviews (FR 2026-07460, 2026-07461); (ii) silicone chemical producers (Dow, Wacker, Momentive) see feedstock pressure flow to elastomers over 60-90 days; (iii) polysilicon producers (Hemlock, REC Silicon) face the largest relative cost increase (~55% of variable cost). Third-order: solar modules, EV battery thermal, consumer electronics sealants.

Three Scenarios. Best case (25%): domestic ramp within 9 months, Brazil/Malaysia absorbs volume, costs within 8-12% of 2025. Base case (55%): landed costs rise 18-25% over 12 months; pass-through ~60% alloys, ~75% silicones. Worst case (20%): Commerce adds Thailand or Bosnia, triggering Q3 2026 supply-chain seizure and 30-45% inflation.

Contrarian Take. Everyone is focused on AD rates, but the real margin driver for 2026 is the CVD order on Laos (FR Doc 2026-07466) alone. CVD orders are harder to remove through annual administrative review than AD — even if Laotian producers cut prices, the countervailable subsidy rate persists. The market is treating this as a short-term event rather than a five-year structural cost shift.

Compliance Deadlines Calendar

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China LATAM EU APAC Trade Monitor

China. Chinese exporters were named in six separate Federal Register actions this week: tin mill preliminary AD/CVD (FR 2026-07146), PTMEG preliminary (FR 2026-07072), aluminum foil AD final (FR 2026-07468), mobile access equipment AD review (FR 2026-07462), NOES sunset continuance (FR 2026-07464, 2026-07463), OCTG sunset continuance (FR 2026-07316, 2026-07310), citric acid CVD sunset (FR 2026-07311), and forged steel fluid end blocks CVD sunset (FR 2026-07315). An unusually concentrated week of duty reinforcement against Chinese industrial inputs. The Dingli margin (FR 2026-07462) means substitution to Haulotte France, Terex US, or JLG US is now the operative planning assumption for rental-fleet operators.

Latin America. The silicon metal action against Angola/Laos (FR 2026-07465, 2026-07466) is materially USMCA-relevant because Mexican aluminum alloy producers (Industrias Peñoles, Cuprum) rely heavily on imported silicon metal. Mexican alloy prices should rise 3-5% over 60 days, pressuring CAAS landed cost even on USMCA-qualified shipments. Brazilian silicon metal is the likely beneficiary — expect Brazilian producer price increases of 10-18% next quarter as they capture the origin-shift premium.

EU. Commerce rescinded the UK cold-rolled steel administrative review (FR 2026-07502) — petitioner withdrawal or insufficient sales data. German and Italian forged steel fluid end blocks face continued AD (FR 2026-07313), as do German-origin NOES (FR 2026-07464). No new EU retaliatory actions this week, but 70% probability of a mirrored EU investigation on Laotian silicon metal within 12 months.

APAC. Laos and Vietnam both received new or continued duty exposure (silicon metal, fish fillets), but Malaysia, Thailand, and the Philippines remain AD/CVD-free for most covered lines — the operative nearshoring beneficiaries. Korea: hit with PTMEG preliminary (FR 2026-07072) and LMPSF final review (FR 2026-07505), but POSCO won a de minimis outcome on cut-to-length plate (FR 2026-07467) — POSCO CTL plate is now effectively duty-free ex-Section 232, a material advantage for US pipeline and heavy-plate fabricators.

What Were Watching Next Week

April 22-24, 2026 — Commerce AD/CVD enforcement announcements. Commerce typically releases preliminary determinations on Wednesdays. We expect the Mexican welded mesh circumvention inquiry continuation to drop in this window, with immediate implications for rebar fabricators sourcing from Mexican steel service centers. Prepare supplier origin paperwork now.

April 24, 2026 — March 2026 Trade Balance Advance Release (BOPGSTB). February printed -$57.347B from -$54.677B in January. A third consecutive widening would signal import surge behavior ahead of tariff actions — historically predictive of Q3 petitioner activity. A >$60B goods-only deficit would elevate political pressure for new Section 301 reviews.

April 25, 2026 — Fed TWD refresh (DTWEXBGS). The dollar slid from 121.035 (Mar 31) to 118.8552 (Apr 10), -1.8% in ten days. A continued slide below 118 would add 1.5-2% to landed costs on all USD-denominated imports, intersecting with the rising PPI Manufacturing (265.266, Mar 2026). Hedge FX exposure on April/May POs now.

May 1, 2026 — Q1 2026 GDP advance estimate. Negative net-export contribution would intensify trade-policy narrative pressure. Base case: net exports subtract 0.3-0.5 pp from Q1 GDP given the widening goods deficit.

May 26, 2026 — ITC Preliminary Determinations on tin mill (FR 2026-07146) and PTMEG (FR 2026-07072). Affirmative determinations trigger preliminary AD/CVD deposits starting August 2026 on combined $790M exposure. Pre-deposit inventory strategy, substitute-sourcing plan, and customer price-escalator language should be finalized by May 15, 2026 — the single largest forward margin exposure we see.