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This is the antidumping (AD) leg of the same Tariff Act of 1930 (as amended) proceeding whose countervailing-duty (CVD) leg was preliminarily determined on 2026-02-26 (case numbers A-533-942 / C-533-943 for India, A-560-846 / C-560-847 for Indonesia, A-553-003 / C-553-004 for Laos). Following the August 2025 petition from domestic crystalline-silicon PV manufacturers, Commerce's parallel less-than-fair-value (LTFV) investigation found producers and exporters in all three countries selling subject merchandise in the US below normal value, with dumping margins far exceeding the earlier CVD subsidy rates.
Preliminary AD rates by country:
| Country | Preliminary AD margin | Adjusted cash-deposit rate |
|---|---|---|
| India | 123.04% | 107.77% |
| Indonesia | 35.17% | 35.17% |
| Laos | 22.46% | 22.06% |
Combined with the preliminary CVD rates already in effect (125.87% India, 85.99%–143.30% Indonesia, 80.67% Laos), subject imports from all three origins now face cash-deposit burdens well above 100% ad valorem — an effective closure of the US market at current rates pending final determinations.
on cells sourced from India, Indonesia, and Laos, sharply raising landed cost for any project still relying on those origins for near-term US utility-scale and C&I solar supply.
an effective pricing-out of the US market unless they secure a materially lower individually-calculated rate at the final determination stage.
manufacturing capacity relocating one step ahead of successive US trade-remedy actions (China → Cambodia/Malaysia/Thailand/Vietnam → India/Indonesia/Laos). Watch for further relocation to origins not yet named in an active US AD/CVD proceeding.
and module manufacturing capacity additions.
move materially from these preliminary margins?
final stage, and will India, Indonesia, or Laos challenge the determinations at the WTO or through litigation at the US Court of International Trade?
as-yet-untargeted Southeast/South Asian assembly origins?