| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ZLD | Zelda Therapeutics Ltd | AU | ASX |
| ZMI | Zinc of Ireland NL | AU | ASX |
| AMRR | American Metals Recovery & Recycling Inc | US | OTC |
| AVLNF | Avalon Rare Metals | US | OTC |
| BDDXF | DB Base Metals Double Long Exchange Traded Notes | US | OTC |
| CKSNY | Cookson Group | US | OTC |
| IPOAF | Industrias Penoles S | US | OTC |
| KGHPF | Kghm Polska Miedz Sa Ord | US | OTC |
| KLKNF | Kloeckner & CO Ag | US | OTC |
| LMEFF | Laurion Minerals Exp | US | OTC |
| MNSF | Mansfelder Metals Ltd | US | OTC |
| NAUFF | Nevgold Corp | US | OTC |
| NUSMF | Nautilus Minerals In | US | OTC |
| RWCI | RWC, Inc | US | OTC |
| SSAAF | Ssab Ab | US | OTC |
| ABZ | AsiaBaseMetals Inc. | CA | TSXV |
| ADE | Adex Mining Inc. | CA | TSXV |
| ADZ | Adamera Minerals Corp. | CA | TSXV |
| AFF | Affinity Metals Corp. | CA | TSXV |
| AGI | Alamos Gold Inc. | CA | TSX |