China A-share small-metals sector opened higher, with tungsten plays leading:
Xianglu Tungsten rose over 5%, and Zhangyuan Tungsten, China Tungsten High-Tech
and Xiamen Tungsten also advanced. Japanese production representing roughly 25%
of global tungsten hexafluoride (WF6) capacity will be permanently halted from
July 1. WF6 is the only commercial precursor gas for tungsten CVD in
semiconductor manufacturing and no substitute is currently available.
