DOC opens AD/CVD investigation into Southeast Asian solar cells

Facebook
Twitter
LinkedIn
Reddit
Email
According to the International Trade Administration (ITA), the DOC has initiated investigations into solar cell imports from Cambodia, Vietnam, Thailand and Malaysia. Image: Port of Los Angeles.

The US Department of Commerce (DOC) has initiated investigations into solar cell imports from Southeast Asia under the antidumping and countervailing duty (AD/CVD) tariffs.

According to the International Trade Administration (ITA), the DOC has initiated investigations into solar cell imports from Cambodia, Vietnam, Thailand and Malaysia to the US, regardless of whether the cells are assembled into modules.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The investigation is based on a petition raised by the American Alliance for Solar Manufacturing Trade Committee in April. The group comprises a number of solar manufacturers with US bases, including cadmium telluride (CdTe) thin-film module producer First Solar and major silicon-based manufacturers Qcells and Meyer Burger.

The petition claims that the US industry is affected by “potentially illegal trade practices by Cambodia, Malaysia, Thailand, and Vietnam”. This builds on previous AD/CVD petitions which claimed – ultimately successfully – that certain Chinese-owned solar manufacturers were relocating parts of their supply chains to Southeast Asia for what the DOC called “minor processing”, in order to avoid US antidumping duties on China.

The US has yet to collect tariffs on Southeast Asian solar products. Joe Biden introduced a two-year waiver in 2022 to act as a “bridge,” allowing time for the US solar industry to build up. The waiver is due to expire this summer.

The next stage of the tariff process will see the International Trade Commission (ITC) reach a preliminary determination by 10th June on whether the imports in question cause “injury” to the US industry. If the determination is positive, the process will continue until final determinations are issued in early 2025.

Following the most recent petition, US renewables analyst Clean Energy Associates said that the tariffs could cause a solar cell supply “bottleneck” for the US because of the concentration of solar manufacturing in Southeast Asia. It said that the tariffs may “greatly reduce” solar cell supply to the US.

The ITA said that the US imported billions of dollars worth of solar products from the four countries in 2023 alone. Its figures show that imports from Cambodia totalled over US$2.3 billion, Malaysia over US$1.8 billion, Thailand over US$3.7 billion and Vietnam over US$3.9 billion.

Moreover, the ITA published data stating that the alleged dumping rate for solar cells from Vietnam is 271.38%—meaning that the normal US market price is more than twice that of the cells exported from Vietnam.  The alleged rate for Cambodia is 124.37%, Malaysia 81.22% and Thailand 70.36%.

Earlier this week, Biden announced a doubling of the Section 301 import tariffs on Chinese solar cells. This may have significant ramifications, though the majority of the US’ solar supply already comes from Southeast Asia.

Our full coverage and analysis of AD/CVD can be found here.

PV Tech publisher Solar Media will be organising the second edition of PV ModuleTech US in Napa, California, during 6-7 June. The conference will address the module landscape that is expected to unfold for U.S. buyers in the coming years; in particular new domestic manufacturing. More information, including how to attend, can be read here.

2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

Read Next

October 20, 2026
Solesca has released the second version of its software, which includes the ability to map the terrain for a proposed PV installation site.
October 20, 2026
NYSERDA has announced its allocations of US$200 million to expand access to affordable solar energy across New York state.
October 19, 2026
Independent power producer (IPP) Swift Current Energy has filed a lawsuit against thin-film cadmium telluride (CdTe) solar module manufacturer First Solar in the New York County Supreme Court.
October 19, 2026
Solar PV manufacturer Qcells has unveiled new, US-produced versions of two residential AC solar panels, Q.TRON AC and Q.PEAK DUO AC, by the end of 2026.
October 19, 2026
The skilled worker shortage was one of the key discussions from solar manufacturers at last week's PV CellTech USA Conference.
October 19, 2026
Australia must find green iron customers beyond China as Chinese steel demand declines and iron ore export earnings fall, says IEEFA.

Upcoming Events

Solar Media Events, Upcoming Webinars
October 21, 2026
2pm AEDT
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye