DOC Releases Final Determination in SE Asia Solar Probe

The U.S. Department of Commerce on Friday released its final determinations in the anti-dumping/countervailing duties probe into solar suppliers in India, Indonesia and Laos, and confirmed tariff rates on the subject countries.

Commerce affirmed that solar firms in the three countries sold solar cells (whether or not assembled into modules) in the U.S. below fair market value, and were provided with countervailable subsidies, according to the DOC.

The U.S. International Trade Commission, or ITC, is conducting a parallel probe into whether the behavior in question caused or threatens material injury to U.S. suppliers. The body’s final vote is scheduled for Oct. 14.

If the ITC affirms material injury, the DOC will issue final AD and CVD orders, finalizing the cash deposit rates on solar goods from the three countries. That release is expected in early November, according to the petitioning group.

Manufacturers and exporters in India face a dumping margin of 123.04% for all producers, and a CVD rate of 126.09%. Manufacturers in Indonesia face a dumping margin of 94.36%, and CVD rates between 73.2% and 173.7%. Manufacturers in Laos face a dumping margin of 65.43%, and CVD rates between 82.03% and 153.67%.

The investigation kicked off last summer. The CVD portion examined the period between April 1, 2024 and March 31, 2025, while the AD portion examined from July 1, 2024 through June 30, 2025.

The petitioning group, the Alliance for American Solar Manufacturing and Trade, represents suppliers with manufacturing interests stateside, including First Solar and Qcells, among others.

In a statement last week, the group’s attorney, Tim Brightbill of Wiley Rein, said the country’s solar manufacturing sector is ready for a “historic resurgence,” noting domestic module capacity is up more than 750% since 2022, when the Inflation Reduction Act launched a number of demand-driving tax incentives.

“But that progress is being harmed by dumped and subsidized imports from India, Indonesia, and Laos that have denied American producers a level playing field,” Brightbill said. “Today’s final determinations are an essential step toward enforcing our trade laws and restoring fair competition for U.S. solar manufacturers and the workers they employ. We will keep monitoring import data and holding bad actors accountable wherever they move next.”