
Fortunately, a trade association called the London Bullion Market Association (LBMA) has defined the standards that gold and silver products must meet to be traded on exchanges. The LBMA has set up an accreditation process for refiners that meet their stringent quality criteria, as well as regular production checks. Such LBMA accredited status is being held by about 70 refiners worldwide for gold and 80 refiners for silver. The list of accredited refiners is called the Good Delivery List and is available on the LBMA website. The London Platinum and Palladium Market association performs a similar role for platinum and palladium.
