Ceria slurries are aqueous or organic dispersions of cerium oxide particles used primarily for polishing, surface finishing, and catalyst preparation. Their high chemical stability and abrasive efficiency make them essential in semiconductor wafer planarization, automotive catalytic converter manufacturing, and advanced optical component finishing. The Ceria Slurries market size was estimated at approximately $620 million in 2025, and analysts project a robust growth outlook with a CAGR of 5.8% through the market forecast period 2026‑2033, reflecting accelerating demand for electric‑vehicle batteries, 5G‑enabled devices, and renewable‑energy components. This industry expansion encompasses catalyst‑grade, polishing‑grade, and specialty optical formulations across key end‑users.