U.S. Insoluble Sulphur Market Holds Steady in Mid-September as Strong Tyre Demand Balances Supply

U.S. Insoluble Sulphur Market Holds Steady in Mid-September as Strong Tyre Demand Balances Supply

Patricia Jose Perez 18-Sep-2025

In mid-September 2025, U.S. insoluble sulphur prices were flat, supported by smooth home production, stable energy costs, and comfortable Gulf Coast stock. Moderate but reliable imports from Asia, including Malaysian shiploads with competitive costs, augmented supply without a squeeze on costs.

Key Highlights: 

  • Insoluble Sulphur pricing stayed flat during mid-September with balanced supply, smooth-running domestic production, and steady energy as well as feedstock.
  • Adequate stockpiles on the Gulf Coast with an average one to two-week forward supply ensured consistent availability alongside moderate but consistent Asian imports.
  • Replacement tyre demand remained strong with support from a record xxxx shipment forecast, offsetting softening OE tyre demand.
  • Potential lift next year as American tariffs rise for selected tyre imports could induce additional local production to facilitate insoluble sulphur usage.

The US insoluble sulphur market saw stability in mid-September xxxx, with steady prices after a consistent month-opening. Sustained supply scenarios coupled with ongoing demand from the replacement tyre industry kept the market even keel. Insoluble sulphur manufacturers remained restrained with their pricing despite competitive bids from overseas manufacturers, primarily Malaysian.

Insoluble sulphur domestic production continued uninterrupted at large plants with stabilized energy...

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