US anti-dumping probe on Indonesian solar cells advances to preliminary finding
The U.S. Department of Commerce has amended its preliminary determination in an anti-dumping investigation of crystalline silicon photovoltaic cells from Indonesia, finding that it must apply adverse facts available (AFA) due to insufficient cooperation or data. The investigation covers the period July 1, 2024 through June 30, 2025, and applies to solar cells whether assembled into modules or not. This amended preliminary affirmative determination of less-than-fair-value (LTFV) sales means provisional duties are likely forthcoming, and final determinations will follow.
Photo: Mark Stebnicki / PexelsUS Anti-Dumping Probe on Indonesian Solar Cells Advances to Preliminary Finding
On May 27, 2026, the U.S. Department of Commerce (Commerce) amended its preliminary affirmative determination in the less-than-fair-value (LTFV) investigation of crystalline silicon photovoltaic cells, whether or not assembled into modules, from Indonesia. The amendment reflects Commerce's determination that it is necessary to rely on facts otherwise available, including adverse inferences (AFA), in reaching its preliminary determination. The investigation covers the period of July 1, 2024, through June 30, 2025.
Who Is Affected
This investigation directly affects exporters of crystalline silicon photovoltaic cells and solar modules from Indonesia (ISO code IDN). The scope covers cells whether or not assembled into modules, meaning both individual solar cells and complete module assemblies are subject to the probe. Any Indonesian manufacturer, exporter, or seller of these products may face provisional anti-dumping duties once the Department issues a final determination.
What the Amendment Means
The reliance on "facts otherwise available" and "adverse inferences" is a critical procedural step in anti-dumping cases. When the Commerce Department cannot obtain adequate data or cooperation from respondents, it is authorized under Section 776 of the Tariff Act of 1930 to use the best information available—often the highest rate alleged by the petitioner or previously calculated rates—as a basis for dumping margins. This typically results in higher preliminary and final duty rates than if full cooperation had been provided.
As an amended preliminary determination, this finding signals that final duties are forthcoming. Importers and distributors of Indonesian solar cells and modules should expect:
- Provisional anti-dumping duties to be imposed on entries from Indonesia
- Bond or cash-deposit requirements at the time of entry
- Potential retroactive application to entries made during the investigation period
- Final determinations and definitive duty rates to follow within months
The investigation is occurring amid broader U.S. trade enforcement activity in the renewable-energy sector, particularly scrutiny of solar imports from Asia. Companies importing these products should monitor Commerce's subsequent notices for final determinations and any scope-clarification requests.
What this means for shippers
If you import crystalline silicon photovoltaic cells or modules from Indonesia, you must anticipate provisional and final anti-dumping duties in the coming months. Verify the HS classification of your specific products (typically HS 8541.40 for solar cells, HS 8501.61 for assembled modules) and obtain landed-cost estimates that account for variable duty rates under AFA methodology. Review your supplier agreements immediately to clarify who bears the cost of these duties. Update your supply-chain risk assessment and prepare alternative-sourcing plans now; delaying action will only increase carrying costs and tariff exposure. /hs-codes/search
