Heavy Duty Diesel (HDD) Catalysts Market, Global Outlook and Forecast 2025-2032 Global Heavy Duty Diesel (HDD) Catalysts Market is experiencing significant growth driven by stringent emission regulations and the increasing adoption of cleaner diesel technologies. Valued at US$ 5.8 billion in 2024, the market is projected to expand at a compound annual growth rate (CAGR) of 7.5%, reaching approximately US$ 9.4 billion by 2030. This robust growth underscores the critical...