The U.S. Department of Commerce has announced preliminary affirmative determinations in antidumping duty investigations into crystalline silicon photovoltaic cells, whether or not assembled into modules or solar cells, from India, Indonesia, and Laos.

For India, the Commerce Department assigned an estimated weighted-average dumping margin of 123.04% to Mundra Solar PV, Mundra Solar Energy, Kowa Company, and Premier Energies.

The adjusted cash deposit rate for these companies is 107.77%. Commerce said the company-specific rate was based on facts available with adverse inferences.

Commerce said final determinations for India and Indonesia are scheduled for around July 13, 2026, while the determination for Laos is scheduled for around September 9, 2026.

According to Commerce, U.S. imports of covered products from India increased from 232.42 million W in 2022 to 2.3 billion W in 2024. The value of these imports rose from $83.87 million to $792.65 million during the same period.

The agency is also conducting concurrent countervailing duty investigations, and the U.S. International Trade Commission is conducting related injury investigations.

The preliminary duties were announced following an investigation after trade petitions were filed by the Alliance for American Solar Manufacturing and Trade, whose members are Hanwha Q CELLS USA (Dalton, GA), First Solar (Tempe, AZ), and Mission Solar Energy (San Antonio, TX) last July.

For Indonesia, Commerce assigned an estimated weighted-average dumping margin of 35.17% to PT Blue Sky Solar Indonesia, PT REC Solar Energy Indonesia, and all other exporters and producers.

For Laos, Commerce assigned a 22.46% estimated weighted-average dumping margin and a 22.06% cash deposit rate for SolarSpace Technology-related producer-exporter combinations, SolarSpace Technology (Hong Kong), Trina Solar-linked exporter combinations, and the Laos-wide entity.

Imports from Indonesia increased from 499.11 million W in 2022 to 1.8 billion W in 2024, while their value rose from $177.53 million to $415.2 million. Imports from Laos increased from zero in 2022 to 1.91 billion W in 2024, valued at $335.74 million.

In February this year, the U.S. Department of Commerce announced its preliminary determination of countervailing duties of up to 125.87% on crystalline silicon solar cells, whether or not assembled into modules, imported from India.