https://www.forbesindia.com/article/comment/gold-assayers-see-their-business-boom/18352/1
High gold prices are giving a boost to gold assayers, who put it through a trial by fire to test for purity
goldassayersseebusinessboom
https://www.hkex.com.hk/Products/Listed-Derivatives/Commodities/Commodities-Need-to-Know/Physical-delivery-for-gold-and-silver-futures/Recognized-Depositories-for-Gold-Futures?sc_lang=en
List of Recognised Depositories, Refiners, Forwarders and Assayers for Gold Futures
listrecogniseddepositoriesforwardersassayers