Extended Indian Phthalic Anhydride Duties Maintain Elevated Plasticizer Sourcing Costs
India’s five-year duty extension on phthalic anhydride locks in higher prices for resin and plasticizer buyers.

Briefing
The Indian Ministry of Finance has extended anti-dumping duties on phthalic anhydride imports from China and South Korea for an additional five years, solidifying elevated raw material expenses for chemical, resin, and plasticizer buyers. This definitive measure, enacted through Notification 20/2026-Customs, preserves import tariffs that protect domestic manufacturers while elevating input prices across paint, coating, and polymer supply chains. Buyers must adjust to these persistent trade protections or seek alternative, duty-free chemical origins.
The extended duties are fixed at 140.17 dollars per metric ton for South Korean material.

Context
Before this policy extension, procurement desks expected the duty regime to expire in August 2026, which would have restored access to cheaper overseas chemical supplies. Industrial chemical buyers were closely monitoring regional plant capacities, seeking signs of a return to standard tariff structures in the Indian market.

Analysis
Domestic producers petitioned for the review because low-priced foreign supplies threatened profit margins. High volumes of imported feedstock have depressed local prices for years. The trade remedy forces buyers to absorb higher import fees or pay matching prices to local chemical refineries.
This change flows directly into downstream formulations. Refiners of plasticizers, paints, and polymer resins must carry the duty cost, raising the cost of an order of finished synthetic resin. Buying teams are faced with a direct choice between domestic suppliers with locked capacities or paying the tariff on imported chemical inputs.

Parameters
- Tariff Item ~ 2917 35 00, the customs classification for phthalic anhydride imports.
- South Korea Duty ~ 140.17 dollars per metric ton, representing the trade barrier on South Korean chemicals.
- China Duty ~ 40.08 dollars per metric ton, the tariff rate applied to Chinese chemical manufacturers.
- Extension Period ~ Five years, the length of the protective measure until August 2031.
- Exempt Origin ~ Thailand, representing the country excluded from these duties following the review.

Outlook
Supply desks must monitor Indian chemical pricing and shipping files through the final quarters of 2026 to measure the pricing spread between domestic and foreign material. The contraction or expansion of the spot price spread will indicate whether buyers are transitioning to domestic contracts or continuing to pay the import duties.

Verdict
Chemical buyers must secure domestic contracts or transition to Thai imports to avoid the five-year tariffs on Chinese and South Korean phthalic anhydride.
