GrandRivers Mining is a global supplier and service provider of rubidium and cesium metals, serving industrial and commercial enterprises across North America, Europe, Asia and the Middle East.
Our integrated refining and processing facilities are located in Tiantang Mountain in Heyuan, Guangdong, China, globally renowned for the world’s highest purity for rubidium minerals.
With over a decade of operational expertise, we implement best industry practices to ensure a high level of purity, ranging from 99.9% to 99.99%, for both rubidium and cesium metals.
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