有研粉材(688456.SH)：目前电子级氧化铜粉年产能约6000吨，暂无扩产计划

Group 1 - The core point of the article is that Youyan Powder Materials (688456.SH) currently has an annual production capacity of approximately 6,000 tons of electronic-grade copper oxide powder and has no plans for expansion at this time [1]