United Precious Metal Refining, Inc. is a leading US-owned full-service refiner of gold, silver, platinum, and palladium, and a manufacturer of master alloys, de-oxidized sterling silver, solder, and wire products for the jewelry industry. The company also provides analytical services such as fire assay, ICP, X-ray fluorescence, and plating thickness testing. United is known for its technical expertise and commitment to quality, and holds certifications including RJC, RMI, SCS recycled content, and COMEX approved gold.
Responsible Jewellery Council (RJC) Code of Practices
Responsible Minerals Initiative (RMI) RMAP Conformant Gold Smelter
Compliance program
SCS Global Services Recycled Content Certification
COMEX Approved Gold Refiner
SCSRECYCLEDCONTENT
Quality certification
Colonial Metals, IncWith four decades in the precious-metal chemical market, Colonial Metals, Inc. makes and supplies platinum-group and other precious-metal chemicals from its Maryland headquarters. The privately held company pairs custom synthesis and specialized packaging with analytical services, including support for high-purity semiconductor and energetic-beam applications. It also operates the only on-site full-service ruthenium refinery in the Americas and provides large-scale rhenium refining.ELKTON, MD
Scientific MetalsFamily-owned and operated in Woodside, New York, Scientific Metals refines precious-metal scrap for dental and jewelry customers across North America. The company keeps melting, incineration and assay under one roof, processing each lot individually and emphasizing transparent returns without sales representatives or third-party intermediaries. Its dental refining work has earned a place on the cover of Dentaltown magazine, an unusual distinction for a refinery.FLUSHING, NY
Ames Goldsmith CorporationAmes Goldsmith Corporation manufactures and refines precious-metal materials, with a long-running specialty in silver refining and fabrication. Founded in 1860 as Ames Chemical Company, its plant has operated continuously as a silver refiner and fabricator, and the company reports annual silver consumption exceeding 85 million troy ounces. It has expanded into advanced materials while continuing its heritage of silver recycling.SOUTH GLENS FALLS, NY
Sabin Metal CorporationFounded in 1945, Sabin Metal Corporation is a family-led precious metals recycler and refiner that processes industrial byproducts and scrap to recover and refine metals. The company operates three metal-processing facilities and is known for its precious-metal recovery work, including its proprietary Pyro-Re process for rhenium recovery.SCOTTSVILLE, NY