US Finalizes Solar Tariffs on India, Indonesia and Laos as Supply Chains Shift to New Hubs

The United States Department of Commerce has set final anti-dumping and countervailing duty rates on solar modules from three Asian countries, concluding the so-called Solar IV trade investigation launched by the American Alliance for Solar Manufacturing.

Under the determinations, Indian producers face anti-dumping duties of 123.04% and countervailing duties of 126.09%. Indonesian manufacturers are subject to a 94.36% anti-dumping rate and countervailing levies ranging from 73.2% to 173.7%, while exporters from Laos will pay 65.43% in anti-dumping charges alongside countervailing rates between 82.03% and 153.67%. Commerce found that all three countries supplied components below fair value and relied on government subsidies.

The new tariffs will stack on top of duties already in place rather than replace them. A precedent exists for how dramatically such measures reshape trade flows: restrictions imposed in 2025 on solar goods from Cambodia, Malaysia, Thailand and Vietnam caused imports from those four markets to collapse from $12.2 billion to $1.3 billion.

Anticipating further pressure, American module manufacturers are already diversifying their cell procurement toward South Korea, the Philippines and emerging production centres in Africa — Kenya, Ethiopia and Nigeria among them.

The measures are not yet final in the legal sense. The US International Trade Commission is scheduled to vote on October 14, 2026 on whether the targeted imports cause material injury to domestic industry. A positive finding would trigger official duty orders taking effect on November 2.

Source: PV Magazine / Solar Power World