Most of the final solar duty rates on India, Indonesia and Laos come from adverse inferences, not calculated margins

The number that runs through the Indian part of this case is 123.04 percent. It was the only dumping margin alleged in the petition filed in July 2025, and on September 16 it became the final margin for every producer and exporter of Indian solar cells, because none of the four companies Commerce chose to examine supplied the information it asked for^1,7. The same day, the U.S. Department of Commerce published final affirmative dumping and subsidy determinations on crystalline silicon photovoltaic cells and modules from India, Indonesia and Laos, six notices in all, signed September 10^1,2,3,4,5,6. What matters as policy is less the height of the rates than how they were reached. Every dumping rate in India and Indonesia, both Indian subsidy rates and two others rest on adverse inferences; the only rates calculated from a company’s own records belong to REC Solar in the Indonesian subsidy case and Solarspace in both Laos cases^1,2,3,4,5,6.

The instrument: section 735, section 705 and the penalty for silence

The authority is title VII of the Tariff Act of 1930. Section 731 and its companion section 735 (19 U.S.C. 1673d) govern antidumping duties on goods sold below fair value; sections 701 and 705 govern countervailing duties on subsidized goods^1,2,12. Commerce measures the dumping or subsidy. The U.S. International Trade Commission decides whether a domestic industry is materially injured, or threatened with injury, by the imports. Duties issue only if both agencies answer yes^1,12.

The determinations turn on section 776 of the Act. When examined companies do not provide the information Commerce requests, it uses facts otherwise available under section 776(a) and, under section 776(b), draws inferences adverse to them¹. In practice, the adverse inference often means the petition’s own numbers. For India, Commerce explained that when every examined company’s margin rests entirely on facts available, its practice is to set the all-others rate as a simple average of the margins alleged in the petition; with a single alleged margin, the average is that margin¹. No interested party commented on the April preliminary determination, so the final determination simply “adopts” it, and Commerce states that no decision memorandum accompanies the notice¹.

The statute also gives a remedy for import surges during an investigation. Where Commerce finds critical circumstances, liquidation can be suspended on entries made up to 90 days before suspension was first ordered¹². The Commission must then decide whether those imports are likely to seriously undermine the remedial effect of an order, looking at factors that include the timing and volume of imports and any rapid build-up of inventories¹².

The mechanism: three countries, three routes to a rate

India. The dumping respondents were Mundra Solar PV Limited, Mundra Solar Energy Limited, Kowa Company Ltd and Premier Energies Photovoltaic Private Limited¹. Each received the adverse-facts margin of 123.04 percent, as did all others¹. The cash deposit adjusted for export subsidies is 107.17 percent, but Commerce is not collecting at that adjusted rate yet; the switch takes effect only on publication of an affirmative final finding by the Commission¹. In the subsidy case, the two Mundra companies “did not participate,” Commerce did not verify, and the final rate of 126.09 percent, also adverse, applies to all producers². Critical circumstances were found for the four dumping respondents, reaching back to entries on or after January 28, 2026, and for the two Mundra companies in the subsidy case, back to November 28, 2025^1,2.

Indonesia. This case shows how a respondent’s status can change late. At the preliminary stage in April, Commerce assigned PT REC Solar Energy Indonesia and PT Blue Sky Solar Indonesia a 35.17 percent dumping margin each³. An amended preliminary determination in May raised Blue Sky to 94.36 percent, the sole petition margin; Commerce has since found Blue Sky uncooperative and did not verify it³. In the final, REC Solar also received 94.36 percent on adverse facts available, even though Commerce had verified its sales and cost data on site³. Every Indonesian exporter now carries the petition rate, with critical circumstances for all³. The subsidy side differs: REC Solar’s calculated rate of 73.20 percent became the all-others rate, while Blue Sky received 173.70 percent on total adverse facts available⁴.

Laos. Here Commerce applied its non-market economy method, as the petitioner had asked, and examined one producer, Solarspace Technology (Laos) Sole Co., Ltd., whose records it verified in May^5,7. The calculated margin is 65.43 percent, with a 65.03 percent deposit after offsets⁵. That rate also covers combinations in which Solarspace product is exported by JA Solar Vietnam Co. Ltd., Trina Solar Energy Development Pte. Ltd. and Trina Solar Science & Technology (Thailand) Company Limited, and it serves as the Laos-wide rate⁵. For comparison, the petition alleged 123.12 percent under the non-market method and 190.12 percent under the market-economy method⁷. In the subsidy case, Solarspace’s verified 82.03 percent became the all-others rate, and Vietnam Sunergy Joint Stock Company received 153.67 percent on adverse facts available⁶. Commerce reversed its preliminary negative critical-circumstances finding for Vietnam Sunergy and all others, so liquidation is now suspended back to November 28, 2025 for them, though not for Solarspace⁶.

What does the scope cover, and which entries are exposed now?

The scope reaches cells at least 20 micrometers thick and the modules, laminates and panels made from them, classified under HTSUS 8541.42.0010 and 8541.43.0010 and potentially entered under subheadings of 8501 and 8507.20.80¹. Thin-film products are excluded, as are a long list of small off-grid and consumer panels defined by wattage, surface area and connector type¹. The origin rule matters most for importers: modules assembled in a third country from Indian, Indonesian or Laotian cells are covered, while modules assembled in those three countries from cells made elsewhere are not¹. Products already under the 2012 China orders and the 2025 orders on Cambodia, Malaysia, Thailand and Vietnam are carved out¹.

Cash flows differ by remedy. Antidumping deposits continue at the final rates on publication^1,3. Subsidy provisional measures expired, and Commerce stopped suspending liquidation for entries on or after June 26, 2026^2,4,6. Subsidy deposits resume only if orders issue.

The effect: who carries the exposure

The petitioner is the Alliance for American Solar Manufacturing and Trade, whose members, according to the Commission, include Hanwha Q CELLS USA, First Solar and Mission Solar⁸. In September 2025 the Commission found a “reasonable indication” that a U.S. industry is materially injured by the imports⁹. The petitions, filed July 17, 2025, alleged injury from dumped and subsidized imports from all three countries⁹.

The respondents’ side is thinner on the published record, and in large part by their own choice. The Indian respondents and Blue Sky did not supply what Commerce asked for, which is why their rates mirror the petition^1,2,3. Others did engage: Commerce received scope case and rebuttal briefs from multiple parties, among them GameChange, and declined to change the scope language^1,5. The Laos record, where the government of Laos and Solarspace were verified, shows what a contested case looks like; its rates sit well below the Indian ones^1,2,5,6.

For U.S. buyers the immediate exposure is retroactive. An importer of Indonesian modules entered in the 90 days before the April 28 preliminary determination faces potential liability at 94.36 percent on those entries if the Commission votes affirmatively and agrees on critical circumstances^3,12. If the Commission votes no, Commerce will refund or cancel the deposits^1,2.

The longer view: the third generation of solar remedies

This is the third time the United States has drawn a trade-remedy line around crystalline silicon solar products. The China dumping and subsidy orders date to December 2012¹. In January 2018, Proclamation 9693 imposed a four-year safeguard under section 201 of the Trade Act of 1974, a tariff-rate quota on cells and higher duties on modules, applied to imports from all countries except, under conditions, developing countries with less than 3 percent of imports¹¹. In June 2025 Commerce issued antidumping orders on Cambodia, Malaysia, Thailand and Vietnam after the Commission found material injury from Malaysian and Vietnamese imports and threat from Cambodian and Thai imports¹⁰. That 2025 case also shows the Commission’s independence on retroactivity: it found that critical circumstances did not exist for Vietnam even though Commerce had found them in part¹⁰. This journal followed the same sequence in the plywood finals in July.

The Commission held its hearing on September 9⁸. Post-hearing briefs, and written statements from nonparties, are due September 16; the Commission will release remaining information on October 6, and final comments close October 8⁸. Commerce says the Commission must rule no later than 45 days after the final determinations, which by this journal’s count from the September 10 signature points to late October¹. Whether the Commission treats each country’s imports cumulatively, and whether it agrees that the pre-preliminary entries threaten the remedy, the record so far does not reveal.