Heraeus Holding
Anglo American Platinum Limited
Impala Platinum Holdings Limited
Sibnaye-Stillwater
Northam Platinum Limited
Norilsk Nickel
Umicore
TANAKA HOLDINGS Co. Ltd.
Johnson Matthey
Sigmund Cohn Corp.
FIRST MAJESTIC
SINO-PLATINUM METALS CO. LTD.
Hecla Mining Company
Fresnillo plc
Newmont Corporation
Royal Bafokeng Platinum
Generation Mining Limited
Desktop Metal Inc.
Nexa
Freeport-McMoRan