Companies / Industry directory / Materials & Chemicals Primary Smelting & Refining of Nonferrous Metals 2 stocks in Materials & Chemicals · SIC 3330. Company snapshot 2026-10-09 · Calculated market cap as of 2026-10-02 · USD Find a company or ticker Stocks in Primary Smelting & Refining of Nonferrous Metals. Sorted by market cap, largest first. Ticker Company Market Cap Revenue (TTM) Net Income (TTM) UAMY UNITED STATES ANTIMONY CORP $618.13M $36.44MTTM ended 2026-06-30 −$16.25MTTM ended 2026-06-30 SDST Stardust Power Inc. $1.33M — −$17.35MTTM ended 2026-06-30 No matching companies.