Refinery Catalysts - Hydrotreating: Market Size & Forecast 2026

The global refinery hydrotreating catalyst category sits at approximately USD 5.1 billion in 2025 (base year), held in a balanced-to-tight state by diesel HDS renewal cycles, IMO 2020 sulphur-cap enforcement, and IIJA-era renewable-diesel hydrotreater buildouts. We see the category compounding at a 3.2% CAGR through 2032 to roughly USD 6.4 billion, materially below the 7%+ headlines that some syndicated publishers are running because the parc is mature, replacement cycles are 4-6 years, and pricing is feedstock-indexed rather than innovation-driven. Buyer Power Score lands at -2.3, supplier-favoring: concentrated Tier-1 supply, sticky technical qualification, and pass-through from nickel and molybdenum commodity moves keep the structural leverage tilted upstream. > Synthesised from secondary and publicly verifiable sources via Claight Category Watch:

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