The protectionist trade posture of Donald Trump has come into sharper focus after the United States placed preliminary tariffs on solar imports from India of up to 126%, indicating potential threats to the evolving India–US trade partnership.
The move was revealed by the United States Department of Commerce, which stated that Indian solar manufacturers had allegedly profited from unfair domestic subsidies. Those subsidies have permitted exporters to sell solar products for less than what would be considered American-made solar products, eroding US domestic manufacturing competitiveness, the investigation says.
Since then, the US, alongside India, has slapped preliminary duties on other Southeast Asian nations. Tariff rates ran between 86% and 143% for Indonesia, and 81% for Laos, as Washington moved to defend its solar manufacturing sector.
Trade Tensions Rise Amid India–US Trade Deal Discussions
It comes a bit after India and the United States agreed on a provisional framework to lower tariffs on Indian exports from 50% to about 18%. But trade negotiations were disrupted as litigation took aim at some of Trump’s former tariff policies, including Supreme Court rulings challenging some of Trump’s tariff steps.
The US administration charged a 10% baseline import duty after that decision and may have increased tariffs, potentially to 15%, on multiple imported goods.
The recent tariff ruling has prompted worries that the “America First” trade policy is a priority, even if it negatively affects the long-term strategic trade relationships with India.
Impact on Global Solar Supply Chain
The spike in imports from India, Indonesia and Laos has been driven in part by global supply chain shifts. In 2025, for example, these nations constituted nearly 57% of US imports of solar modules.
In line with the trend of Chinese manufacturers moving their manufacturing efforts to Southeast Asia for reasons of circumventing US trade constraints, India emerged as a dominant beneficiary, with solar exports to the US amounting to about $792.6 million in 2024 compared with 2022 (9x higher).
Trade experts and in the field of domestic industry argue that higher tariffs will also prompt local manufacturing investment in the US. Attorney Tim Brightbill, representing US solar manufacturers' interests, said that U.S. domestic industries cannot grow if unfair trade in products keeps altering market competitiveness.
Concerns for US Solar Industry Growth
The tariffs may help US domestic power manufacturers but they could also hurt US solar industry development. Higher tariffs could mean solar installations will be costlier as the industry already contends with high interest rates and regulatory uncertainty.
Stricter trade barriers could halt the integration of renewable energy and increase the cost of projects for solar developers nationwide, industry analysts warn.
An ultimate decision regarding subsidy inquiries and anti-dumping actions is due by 6 July 2026.