国泰集团：公司全资子公司三石有色已提炼出高纯氢氧化铌实验品

Group 1 - The company, Guotai Group (603977.SH), confirmed that its subsidiary, Sanshi Nonferrous, has successfully refined high-purity niobium hydroxide experimental products [2] - The company aims to further enhance the production capacity and quality of high-purity tantalum and niobium oxide products, which are expected to enter fields such as superconducting cavities and optical modules after downstream processing [2]