The U.S. International Trade Commission voted on October 14 that solar cell and module imports from India, Indonesia and Laos have materially injured domestic manufacturers, clearing the final legal hurdle for steep new antidumping and countervailing duties on the three countries.
The decision locks in tariff rates that trade groups say will effectively close off a major import channel that had surged in recent years.
What the commission decided
The final injury determination, also covered by trade press, covers crystalline silicon photovoltaic cells, whether or not assembled into modules, from the three countries.
The United States International Trade Commission (USITC) determined that a U.S. industry is materially injured by reason of imports of crystalline silicon photovoltaic cells, whether or not assembled into modules, from India, Indonesia, and Laos that the U.S. Department of Commerce has determined are sold in the United States at less than fair value and subsidized by the governments of India, Indonesia, and Laos.
Following the USITC’s final injury determination, Commerce is scheduled to issue its official AD and CVD orders in early November 2026. Upon publication, U.S. Customs and Border Protection will be instructed to require final duty cash deposits on all incoming entries of cells and modules from India, Indonesia, and Laos.
The tariff numbers
The rates finalized by the Commerce Department last month are among the steepest the solar sector has faced. For Indian suppliers, Commerce set final dumping margins at 123.04% for all producers alongside a countervailing subsidy rate of 126.09%.
Indonesian exporters face final dumping margins set at 94.36% for all producers, with countervailing duty rates ranging between 73.2% and 173.7% depending on the specific supplier.
For imports originating in Laos, Commerce set final dumping margins at 65.43% for all exporters, accompanied by countervailing subsidy rates established between 82.03% and 153.67%. Trade press has cited combined tariff rates as high as 249% for India, 268% for Indonesia, and 219% for Laos once dumping and subsidy rates are stacked together.
These case-specific remedies, governed by the Tariff Act of 1930, will stack directly on top of existing executive tariffs and Section 232 minimum import price floors rather than replacing them.
GCN previously reported on those broader measures when Trump’s Section 232 proclamation set tariffs and price floors on imported polysilicon earlier this year.
Who brought the case and why
The investigation was launched in July 2025, in response to a petition filed by a group of US solar PV manufacturers, the Alliance for American Solar Manufacturing and Trade (AASMT). The coalition is represented by lead petitioners First Solar, Hanwha Qcells USA, and Mission Solar.
The litigation follows earlier Solar III duty orders targeting Southeast Asian manufacturing hubs in Cambodia, Malaysia, Thailand, and Vietnam. That earlier case against those four countries led to a significant drop in imports from these countries, according to the alliance’s trade counsel.
Attorney Tim Brightbill, who represents the alliance, said on a press call, “We think those will be, and are, prohibitive rates.”
What happens next
With the injury finding locked in, the ruling paves the way for US AD/CVD orders on solar imports from the three countries on November 2, 2026.
US Customs and Border Protection (CBP) will start collecting cash deposits once the orders are in effect, narrowing the economic case for routing cells and modules through India, Indonesia or Laos into the U.S. market.
The ruling adds to a string of trade actions reshaping where American solar hardware comes from, following GCN’s coverage of Toyo’s Texas expansion amid a separate tariff circumvention probe.
Industry analysts expect manufacturers and project developers to keep shifting sourcing toward domestic cell and module lines, or toward countries not yet covered by an active trade case, as the enforcement net around Asian solar supply chains continues to tighten.
