Earnings / Industry directory / Materials & Chemicals Primary Smelting & Refining of Nonferrous Metals 1 stock in Materials & Chemicals · SIC 3330. Company snapshot 2026-11-13 · Calculated market cap as of 2026-11-06 · 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 $387.64M $36.44MTTM ended 2026-06-30 −$16.25MTTM ended 2026-06-30 No matching companies.