Gold mining practices have been linked to child labor, mercury pollution and other human rights and environmental abuses, but tracking the raw mineral through the supply chain can be difficult. Most gold is refined at large plants (60 percent to 70 percent of the total supply passes through Switzerland for refining, according to WWF). Unless gold from a particular source has been segregated before melting, it is typically mixed with other sources, making it impossible to identify origin.
read more... https://www.nytimes.com/2020/11/19/fashion/watches-supply-chain-transparency-chopard.html
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