On June 5, Zhangyuan Tungsten published long-term procurement quotes for the
first half of June 2026: 55% black tungsten concentrate 505,000 yuan/metric
tonne, 55% white tungsten concentrate 504,000 yuan/metric tonne, ammonium
paratungstate (national standard zero grade) 760,000 yuan/tonne. All three
prices were raised versus the company’s late‑May long‑term procurement quotes.