China, the dominant producer, has seen output fall by 80% since 2016 while domestic demand has risen, resulting in a sharp fall in exports. This has curbed the ability of foreign buyers to stockpile and has this year pushed prices to record highs.
US prices for the material purchased in Rotterdam are expected to continue to rise above the price for delivery out of Shanghai.
Chinese antimony producers’ share prices, including Guangxi Huaxi Nonferrous and Hunan Gold, are being little affected by the export ban.
Canada-listed Mawson Gold made a significant new gold-antimony mining discovery in Australia this month, boosting its share price.
Nasdaq-listed Perpetua Resources saw its stock jump 17.4% after the firm won US Forest Service approval for its Idaho gold-antimony mine.
