The global cerium oxide powder market was valued at USD 194 million in 2025 and is projected to reach USD 326 million by 2034, at a CAGR of 7.7% during the forecast period, according to 24MarketReports. Cerium oxide (CeO2) is the most abundant rare-earth oxide, used as a polishing powder, emission-control catalyst and functional additive in glass, ceramics, automotive and specialty applications.

Cerium oxide serves as a polishing agent for glass, lenses and semiconductor wafers, as an oxygen-storage catalyst in automotive emission-control, and as a functional stabilizer and additive in glass, ceramics and specialty materials. Demand is tied to the expansion of precision optics and semiconductors, the growth of emission-control catalysis, and the rising use of rare-earth oxides in industrial applications. Asia-Pacific is the largest and fastest-growing region, supported by extensive glass, semiconductor and automotive industries in China, India and Southeast Asia.

North America and Europe sustain steady demand in premium optical, automotive and specialty applications. Continued rare-earth growth positions cerium oxide as a steadily advancing polishing and catalyst material.