India CBIC Notification 11/2026-Customs (ADD): Definitive 5-Year Anti-Dumping Duty on Sulphenamides Accelerators from China, EU and US

Mechanism

Sulphenamides Accelerators are organosulfur compounds used as vulcanisation accelerators in the rubber industry, classified under relevant HS chapters covering rubber compounding ingredients. They are consumed predominantly by tyre manufacturers (bias, radial, OTR, two-wheeler) and other rubber goods producers as a processing aid that crosslinks polymer chains during vulcanisation, determining the final mechanical properties of the rubber compound.

The investigation was initiated under the Customs Tariff Act 1975 read with the Anti-Dumping Rules 1995, following a petition by NOCIL Limited — India's largest domestic rubber-chemicals producer and the sole petitioner representing the domestic industry. DGTR conducted the standard injury determination and found that imports from China, the EU and the US were being sold in India at prices below their normal value (export price < constructed normal value), causing material injury to the domestic industry.

The definitive duty structure — expressed as specific duties in USD per tonne rather than ad-valorem percentages — is common for commodity chemicals where price levels and dumping margins vary significantly by producer and origin:

• Range: USD 75/tonne (lowest, likely for certain EU/US producers with narrow

dumping margins) to USD 1,748/tonne (highest, for Chinese producers with widest margin)

• Duration: 5 years from 19 June 2026 (standard Indian ADD term, renewable on

sunset review)

CBIC implementing the DGTR recommendation via notification is the final step in the two-step Indian ADD process (DGTR recommendation → Ministry of Finance/CBIC notification). The five-year duration aligns with WTO Anti-Dumping Agreement Article 11 standard term, subject to sunset review.

Downstream implications

• NOCIL stock impact: NOCIL (NSE: NOCIL) hit a 20% upper circuit on 22 June

2026, reflecting the market's view that the duty restores pricing power for Pilcure-branded sulphenamides in the domestic market. NOCIL is the primary — and likely sole domestic — producer of sulphenamides accelerators in India.

• Tyre sector cost pass-through: India's tyre industry (MRF, Apollo Tyres,

CEAT, JK Tyre) relies on rubber vulcanisation chemicals as a key input. The ADD reduces the availability of lower-cost imported sulphenamides, likely compressing margins unless NOCIL's domestic pricing responds competitively.

• India's systematic specialty-chemical ADD perimeter: This notification

continues a documented DGTR/CBIC pattern of protecting domestic chemical manufacturers from Chinese competition in specialty rubber, plastic and industrial chemicals. Recent cognates in the register: titanium dioxide (2025-02-12), PTFE (2026-03-20 initiation), LNG fuel tank components (2026-03-18). The sulphenamides case extends this perimeter to rubber-chemicals value chains.

• EU and US exporters affected: The inclusion of EU and US origin (alongside

China) is notable — Indian investigators found evidence of below-normal-value pricing from multiple advanced-economy exporters competing for the Indian rubber chemicals market, not solely Chinese price pressure.

Open questions

• Specific per-producer duty rates and the exact country-of-origin breakdown

(which EU member states' producers are named, which US producers) will be detailed in the full CBIC notification text on the tax information portal.

• Whether NOCIL will expand sulphenamides capacity following the duty protection —

the company's capex guidance for FY2027 will be the signal.

• Sunset review trigger: duties are automatically subject to DGTR sunset review

before the 5-year expiry (c. June 2031).