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

October 2, 2025
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

October 16, 2025
Jakson Green and Blueleaf Energy have reached financial close for the 840MWp Bikaner solar projects in Rajasthan, western India. 
October 15, 2025
Wood Mackenzie has warned of a supply bottleneck as the renewable energy shift drives a spike in global copper demand over the next decade.
October 15, 2025
Ciel & Terre has launched a new floating PV structure designed to address the increasingly large scale of floating solar projects.
October 15, 2025
Indian module manufacturer Saatvik Green Energy, through its subsidiary Saatvik Solar Industries, has secured solar PV module orders worth INR6.89 billion (US$78 million).
Premium
October 14, 2025
OCI Holdings’ decision this week to buy a Vietnamese solar wafer facility to supply the US solar cell manufacturing industry makes clear the biggest vulnerability facing the sector today.
October 14, 2025
India has installed 4.9GW of residential rooftop solar capacity in the first half of 2025, according to a report by IEEFA and JMK Research.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 10, 2026
Frankfurt, Germany