The Smelters-Refiners-Precious Metals (Manufacturing) industry involves the extraction and processing of precious metals such as gold, silver, platinum, and palladium. This industry is responsible for refining raw materials into pure metals and alloys that are used in various industries such as jewelry, electronics, and automotive. The process of refining involves the removal of impurities and the separation of precious metals from other materials. This industry is highly regulated due to the hazardous nature of the materials used and the potential environmental impact of the refining process.