- Advanced Chemical Company - Specializes in the refining of precious metals generated from electroplating operations and karat gold jewelry manufacturing operations .
- Almanon, Inc. - Precious metal refiners of gold, silver, platinum and palladium.
- GoldRefiner.com - Precious metals refiner specializing in gold, silver, platinum, palladium and rhodium recovery.
- Produits Artistiques Metaux Precieux - PAMP is an independent refiner of precious metals. Specializes in precious metal products for artistic use.
- Speciality Metals Refining Co. - Refiners of precious metal including gold, silver, platinum, palladium and rhodium.
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