The Alliance for American Solar Manufacturing and Trade has filed new anti-dumping and countervailing duty petitions with the U.S. International Trade Commission (USITC) and the U.S. Department of Commerce against imports of crystalline silicon photovoltaic cells, whether or not assembled into modules, from India, Indonesia, and Laos.

These petitions allege that companies based in India and largely Chinese-owned manufacturers operating in Indonesia and Laos are engaging in illegal trade practices by undercutting the U.S. solar manufacturing industry and flooding the market with cheaper imports.

The petitions identify significant dumping margins for each country involved. India faces a margin of 213.96%, Indonesia 89.65%, and Laos between 245.79 and 249.09%.

The petitioners include First Solar, Mission Solar Energy, and Qcells, with support from Talon PV Solar Solutions.

These petitions have been filed at a time when there is an increase in Indian solar exports to the U.S. In the first quarter of 2025, Indian solar module and cell exports increased by 26.1% quarter-over-quarter, reaching $267.6 million (~₹23.1 billion), up from $212.2 million (~₹17.92 billion) in the previous quarter. The U.S. was by far the largest destination, accounting for 99.5 % of India’s total solar exports during that period.

The new petitions follow a recent decision by the USITC in May, which concluded that U.S. solar manufacturers had suffered material injury from imports of crystalline silicon photovoltaic cells and modules originating in Cambodia, Malaysia, Thailand, and Vietnam. That ruling marked the end to a year-long investigation prompted by a similar complaint filed last year by the American Alliance for Solar Manufacturing Trade Committee.

The U.S. Department of Commerce is also investigating the effects of importing polysilicon and its derivatives to assess the potential for export restrictions by foreign nations, including their ability to weaponize their control over polysilicon and its derivatives. Polysilicon is a key material used in the production of solar cells.

Last October, the U.S. imposed anti-dumping duties at rates ranging from 2.02% to 376.85% and countervailing duties at rates ranging from 1.44% to 168.81% on aluminum extrusions, which are used in trackers and mounting structures for solar modules imported from 14 countries, including India.