Southeast Asian Solar Energy Faces Extremely High US Tariffs

On April 21, 2025, President Donald Trump’s administration aggressively imposed new tariffs on solar energy products imported from four Southeast Asian countries: Cambodia, Thailand, Vietnam, and Malaysia. This decisive move, with the highest tariff reaching 3,521% on solar cells, is seen as a significant escalation in the US-China trade war. Washington accuses many Chinese solar manufacturers of establishing factories in the region to circumvent laws and dump products onto the US market, threatening the domestic solar energy manufacturing industry.  

Detailed Tariff Rates And Reasons For Imposition

According to the Wall Street Journal, the “massive” 3,521% tariff imposed by the US on solar cells imported from the four aforementioned Southeast Asian countries could render these solar energy products completely uncompetitive in the US market.

The decision to impose tariffs was made after a year-long investigation conducted by the US Department of Commerce. The investigation stemmed from a complaint by US manufacturers alleging that Chinese companies had set up factories in Cambodia, Thailand, Vietnam, and Malaysia to dump solar cells and solar panels onto the US market.  

Reuters reported that the total tariff rate (including anti-dumping and countervailing duties) applied to products from Malaysia’s Jinko Solar is 41.56%, the lowest in this round of tariffs. Products from competitor Trina Solar in Thailand face a tariff rate of 375.19%. Products from Cambodia, however, were hit with the highest tariff rate of 3,521% because manufacturers in that country did not cooperate with the US investigation.  

Context Of The US-China Trade War And Circumvention Concerns

In 2025, China continues to be a primary target in the trade war initiated by Mr. Trump, aimed at what Washington calls unfair trade practices by most partners, including many allies. The reciprocal tariff measures between the White House and Beijing pose a potential risk of significantly disrupting trade between the world’s two largest economies.  

The announcement of solar energy tariffs on April 21, 2025, demonstrates the deep concern in the US that China may be evading previous punitive tariffs by increasing product exports through the network of global factories it has significantly expanded in recent years.

Recommendations From The US Solar Industry

In 2024, the Trade Committee of the American Alliance for Solar Manufacturing (AASM) filed a petition with the US government requesting protection for its members against what they considered “harmful trade practices” from China. AASM alleged that Beijing’s industrial policy had led to widespread subsidies for the solar industry in China and Southeast Asian countries, posing a serious threat to the US solar manufacturing industry.  

These latest tariff rates reflect the US Department of Commerce’s assessment that some Chinese manufacturers have been transshipping solar energy products through Southeast Asian countries to avoid previously imposed tariffs.

Us Solar Market And Previous Policy Developments

The US market has long been an attractive destination for renewable energy manufacturers, partly due to the supportive policies of President Joe Biden’s administration, particularly the Inflation Reduction Act (IRA). Solar energy currently accounts for over 15% of electricity generation in some large states like California and Massachusetts.

Last year (2024), the Biden administration also issued preliminary determinations on applying countervailing duties, ranging from 0% to 300%, on solar panels and cells produced in the four aforementioned Southeast Asian countries. The “extremely strong” tariff rates just announced by the Trump administration come at a time considered challenging for the global solar power industry in general.

Impact Of Mr. Trump’s Energy Policies

Since returning to the White House (in 2025), Mr. Trump has begun implementing a series of energy policies likely to weaken demand for solar panels. These measures include lifting some barriers to coal mining, which some analysts believe will slow down the closure of coal-fired power plants.

Furthermore, the reciprocal tariff plan proposed by Mr. Trump in early April 2025 is also predicted to significantly increase the costs of new clean energy projects, including solar energy, in the future.