India launches antidumping investigation on solar encapsulants from South Korea, Vietnam and Thailand

Facebook
Twitter
LinkedIn
Reddit
Email
Shipping containers on a boat.
The petition was filed by Indian PV encapsulant and backsheet manufacturer RenewSys. Image: Rinson Chory, via Unsplash.

The Indian Department of Commerce has launched an antidumping investigation on solar encapsulants originating or exported from South Korea, Vietnam and Thailand.

This comes after a petition was filed by Indian PV encapsulant and backsheet manufacturer RenewSys, which has a major share of the domestic market, as noted in the investigation’s notification published by the Directorate General of Trade Remedies (DGTR).

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 petition was supported by two other companies, Vishakha Renewables and Navitas Alpha Renewables.

According to the petition from RenewSys, the goods that are allegedly dumped into India are “identical to the goods produced by the domestic industry”, adding that there are “no differences either in the technical specifications, functions or end-uses of the dumped imports and the domestically produced subject goods.”

The investigation will cover products exported from South Korea, Vietnam and Thailand during 1 April 2024 and 31 March 2025.

The notification for the investigation can be accessed here. There is currently a 30-day window since the publication of the notification (29 September) for the reception of any information related to the investigation.

Solar encapsulants are used for the adhesion between the PV cell, the glass and the backsheet. There are mainly three types of encapsulants, which are Polyolefin Elastomer (POE), Ethylene-Vinyl Acetate (EVA) and a combination of both, EVA-POE-EVA encapsulant (EPE).

The launch of this investigation comes almost a year after the Directorate General of Trade Remedies (DGTR) issued preliminary antidumping rates on solar glass exported from China and Vietnam. In its preliminary findings, the DGTR had found that seven solar glass producers in China and one in Vietnam had exported products to China that had “injured” the Indian domestic solar glass production industry.

The Department of Commerce assigned dumping margins of between 50% and 90% for Chinese exporters and between 30% and 40% for Vietnamese exporters.

The Indian solar industry itself is not exempt from being the target of an antidumping investigation. During the summer, antidumping and countervailing duty (AD/CVD) petitions from the Alliance for American Solar Manufacturing and Trade were filed against the import of PV cells into the US from India, Indonesia and Laos.

The investigation is currently ongoing, with preliminary determinations to be expected in the coming weeks.

Read Next

November 13, 2026
Indian renewables company ReNew Energy Global has planned to invest INR800 billion (US$8.53 billion) in the southeastern Indian state of Andhra Pradesh across solar manufacturing and a data centre.
November 11, 2026
Raana Semiconductors has signed a pre-order deal to supply domestically produced ingot-growing equipment to Indian PV manufacturer Swelect HHV Solar Photovoltaics.
November 10, 2026
The development of next-generation perovskite solar technology offers Indian PV manufacturers a viable route to owning their intellectual property rather than licensing or importing it because the global science still remains in development.
November 9, 2026
The Global Solar Council is set to unveil a ‘global rooftop solar declaration’ committing governments worldwide to 300 million new solar homes.
November 9, 2026
The International Energy Agency has forecast 3.6TW of new solar PV additions between 2026-2031 in its latest report on the renewables sector.
November 5, 2026
IB Solar has signed an MoU with three German companies to develop a 2GW TOPCon solar cell manufacturing line at its facility in India.

Upcoming Events

Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye