Advanced Chemical Company Specializes in the refining of precious metals generated from electroplating operations and karat gold jewelry manufacturing operations . http://www.advchem.com/

Almanon, Inc. Precious metal refiners of gold, silver, platinum and palladium. http://www.almanon.com

Engelhard-Clal Refining and metallurgy of precious metals. Gold, silver, platinum, palladium, rhodium, ruthenium, iridium. http://www.engelhard-clal.fr

Five Star Refiners, Inc. Purchase all types of precious metal and precious metal scrap and provides on-site smelting of gold and other precious metals . http://www.refinegold.com/

Metals Refining Operations Precious metal processor and refiner in Papua New Guinea, South Pacific. Refining gold, silver, and other precious metals. http://www.metalsrefining.com.pg

Speciality Metals Refining Co. Refiners of precious metal including gold, silver, platinum, palladium and rhodium. http://www.specialtymetals.com/