Northern Rare Earth Unit Tianjiao Qingmei's Nano Cerium Oxide Polishing Fluid Reaches Batch Supply

Tianjiao Qingmei, a subsidiary of Northern Rare Earth, has independently developed a nano cerium oxide fine polishing fluid that has passed production line validation by multiple leading optical customers and achieved stable batch supply. The product is suited to high-end precision polishing applications, employing a synergistic chemical-plus-mechanical polishing mechanism. Its core performance benchmarks against imported high-end products, and it can be applied across various precision optical component polishing processes, safeguarding optical transparency and imaging quality while improving finished product yield.

As markets for vehicle optics, machine vision, AR/VR, and high-end research optics continue to expand, the industry has raised its requirements for nano-scale processing precision, surface cleanliness, and particle stability of polishing consumables. High-end optical polishing fluids have long depended on imports, leaving supply chains exposed to uncertainty. Tianjiao Qingmei's mass-produced nano cerium oxide polishing fluid now offers a new option for domestic substitution.

Tianjiao Qingmei assembled a dedicated technical team to conduct full-chain development covering raw material modification, formula adjustment, pilot-scale amplification, third-party performance testing, and customer site sampling. The team completed the entire process from laboratory research and small-scale trials to pilot production, overcoming key technical hurdles including uniform preparation of nano rare earth particles, long-term slurry suspension, and fully dust-free clean production. The product's formula can be adjusted to customer substrate and equipment requirements, with full-process support during sampling and production line commissioning, and dedicated coordination channels during batch production.

Since 2026, Tianjiao Qingmei has advanced product iteration and market introduction, optimizing its dual domestic distribution and direct sales channel system, consolidating mature regional channels, and focusing on developing channels in emerging industrial areas in central and western China, while building an overseas distribution network. The nano cerium oxide polishing fluid carries higher added value than traditional rare earth polishing materials, which should help optimize the company's product profitability structure and lift overall sales gross margin.

Tianjiao Qingmei plans to continue deepening its presence in high-end precision manufacturing segments, enrich its high-end polishing fluid product matrix, and provide high-quality, high-stability domestically produced products with supporting services to support the development of precision optics and high-end manufacturing.