India Terminates Anti-Dumping Investigation on Chinese Siloxane Polyoxyalkylene Copolymers

On September 26, 2025, India’s Ministry of Commerce and Industry announced the termination of its anti-dumping investigation into imports of Siloxane Polyoxyalkylene Copolymers (with viscosity up to 2500 cst) originating in or exported from China, following the withdrawal request submitted by the applicant on September 24, 2025.

Background

The investigation was originally initiated on September 30, 2024, after a petition filed by Momentive Performance Materials (India) Pvt. Ltd., a domestic producer of silicone-based materials. The company alleged that imports from China were being sold in India at dumped prices, causing material injury to the local industry.

The period of investigation (POI) covered April 1, 2023 to March 31, 2024, while the injury examination period spanned four years — from April 1, 2020 to March 31, 2024. The products under review were classified under Indian Customs Tariff headings 3402 and 3910, which cover surface-active agents and silicone-based polymers, respectively.

Withdrawal and Termination

According to the latest notice, the applicant formally requested to withdraw its petition before the Directorate General of Trade Remedies (DGTR) on September 24, 2025. In line with Indian trade remedy regulations, the DGTR accepted the withdrawal and terminated the anti-dumping proceedings without imposing any duties.

This effectively ends the one-year investigation that had been underway since late 2024. No provisional or definitive anti-dumping measures will be applied.

Industry Context 

Siloxane Polyoxyalkylene Copolymers are key intermediates used in silicone emulsions, lubricants, coatings, personal care formulations, and agricultural adjuvants. India imports a significant share of these specialty chemicals from China, South Korea, and Europe.

While the withdrawal reasons were not publicly disclosed, trade analysts suggest that:

• The price differential between domestic and Chinese imports may have narrowed in recent months.

• The applicant may have reached a commercial resolution or determined that the injury impact was less severe than initially estimated.

• The ongoing global softness in silicone demand could have reduced the urgency of pursuing duties.

Implications 

The decision provides short-term relief to Indian importers and downstream users — particularly in cosmetics, coatings, and agrochemicals — who rely on imported siloxane copolymers for consistent quality and supply. However, it also highlights the shifting trade dynamics in India’s specialty chemicals sector, where companies are increasingly balancing domestic manufacturing ambitions with supply-chain flexibility and cost competitiveness.