
| Producer | Refined At | Code | Brand Marks |
| Argor-Heraeus SA | Switzerland | AHSA | # Argor-Heraeus SA |
| Asahi Pretec Corp. | Japan | ASPC | # AKK in a diamond |
| Compagnie des Metaux Precieux SA | France | CMPP | * Compagnie des Metaux Precieux Paris CMP |
| Comptoir Lyon – Alemand Louyot | France | CLAL | * Comptoir Lyon-Alemand Louyot Paris Affineur Fondeur in octagon |
| Degussa AG | Germany | DEAG | * Degussa with half sun & quarter moon in a diamond |
| Ekaterinburg | Russia | EKAT | # POCCNR (where "N" and "R" are backwards) in an oval & company symbol |
| Engelhard Corporation – Carteret | United States | ECCA | # "E" symbol in octagon |
| Engelhard Limited | Great Britian | ELGB | * Engelhard London and "E" in parallelogram |
| Engelhard Metals Corporation – Carteret | United States | EMCC | * "E" symbol in octagon |
| Engelhard SA | France | ENSA | * Engelhard in parallelogram and Comptoir Lyon-Alemand Louyot Paris Affineur Fondeur in octagon |
| Engelhard s.r.l. | Italy | ESRL | # "1ER" in octagon (from serial number R501 onwards) |
| Engelhard-Clal | United States | ECNY | * Engelhard-CLAL New York |
| Engelhard-Clal (UK) Limited | Great Britain | ECUK | # E-C in a parallelogram |
| Engelhard-Clal Paris | France | ECLP | # Engelhard-Clal Paris |
| Furuya Metal Co. Ltd | Japan | FMCL | # KFK overlays Furuya Metal Tokyo in a circle |
| H. Drijfhout & Zoon's Edelmetaalbedrijven B.V. | Netherlands | DZAM | *# H. Drijfhout & Zoons Amsterdam Melters |
| Heraeus Metal Processing Inc. | United States | HPMI | # Heraeus with HMP surrounded by a sun |
| Impala Platinum Limited | South Africa | PLAT | # Company symbol only (Impala Animal Head) |
| Impala Platinum Limited | South Africa | IMPL | * Company symbol |
| Inco Europe Limited | Great Britain | INCO | # Inco |
| Ishifuku Metals Industry Co. Limited | Japan | IMIL | # Ishifuku Tokyo |
| Johnson Matthey Inc. | United States | JMUS | # Johnson Matthey Made in U.S.A. |
| Johnson Matthey plc | Great Britain | JMUK | # Company logo and Made in England |
| Krasnoyarsk | Russia | KRAS | # Made in Russia (with K and a flower) |
| Krastsvetmet | Moscow, Russia | ARKA | # Made in Russia (with K and flower) |
| Matsuda Sangyo Co. Limited | Japan | MSCL | # Matsuda Tokyo Assayer Melter |
| Metaux Precieux SA Metalor | Switzerland | MPSA | # M.P. Assayeur Fondeur |
| Novosibirsk Refining Factory | Russia | NOVO | # POCC_ in an oval & company symbol |
| PGP Industries Inc. | United States | PGPI | * PGP in a circle of dots |
| Pamp S.A. | Switzerland | PAMP | # PAMP individual letters in cylinder followed by the word Switzerland |
| Prioksk | Russia | PRIO | # POCCNR (where "N" and "R" are backwards) in an oval & company symbol |
| Rustenburg Platinum Mines Limited | South Africa | RPML | # Rustenburg in a rectangle |
| Sabin Metal Corporation | United States | SMC | # SMC |
| Soviet State Refinery | Moscow, Russia | LMAZ | * ALMAS, Made in USSR (with hammer and sickle) |
| Krastsvetmet as represented by | |||
| Almajuvelirexport | |||
| State Refinery | Russia | RUSS | * Made in USSR with hammer & sickle |
| Tanaka Kinkinzoku Kogyo K.K. | Japan | TKKK | # Tanaka Tokyo |
| Tanaka Kinkinzoku Kogyo K.K. | Japan | TKKM | # Tanaka Tokyo Melters |
| Tokuriki Honten Co. Limited | Japan | THCL | # Tokuriki Tokyo |
| Umicore AG & Co. KG | Germany | OMGA | # Degussa with half sun and quarter moon in a diamond |
| Valcambi SA | Switzerland | VABS | # Valcambi S.A. Balerna-Suisse |
| W.C. Heraeus GmbH | Germany | WCHG | # H surrounded by a sun and the word Heraeus |
| Western Platinum Limited | South Africa | WPRL | # W.P.L. Platinum |
(1) Brands which are no longer produced are preceded by an asterisk (*).
(2) Brands which are acceptable on the London Platinum and Palladium Market are preceded by a pound sign (#).