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[SMM Rare Earth Flash] China Northern Rare Earth’s subsidiary, Tianjiao Qingmei, has recently seen its self-developed nano cerium oxide precision polishing fluid pass production line validation at multiple leading optical clients, achieving stable mass production and supply. This breaks the long-standing reliance on imports for high-end optical polishing consumables and further expands the high-end application market for rare earth functional materials. It is understood that the product employs a "chemical-mechanical" synergistic polishing technology, which can meet the precision polishing needs of high-end optics, automotive optics, AR/VR, and other fields, achieving breakthroughs in key technologies such as nanoparticle preparation and slurry stability. Tianjiao Qingmei stated that it will leverage the advantages of the rare earth industry chain to continue refining its product portfolio of high-end polishing fluids, driving the extension of rare earth products into high-value-added and high-end manufacturing sectors.