Sulfuric acid hydrogenion news

All news on Sulfuric acid hydrogenion (also known as HSO): plants, production capacities, investments and involved companies.

3 November 2025

GS Caltex to source carbon‑free steam from Namhae Chemical

Reactivating an idle sulfuric acid plant to generate steam from refinery sulfur; pipeline and plant modifications start next year with commercial supply in 2027 and ~70,000 tCO₂eq/yr reduction.

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