| Symbol | Name | Country | Exchange |
|---|---|---|---|
| NPKYY | Nippon Kayaku Co. Ltd | US | OTC |
| SMMYY | Sumitomo Metal | US | OTC |
| TORM | Tor Minerals Intl | US | OTC |
| TOSCF | Tosoh Corp [Japan] | US | OTC |
| TYHOF | Toyota Tsusho Corp Ord | US | OTC |
| IZ | International Zeolite Corp. | CA | TSXV |
| RKV | Rakovina Therapeutics Inc | CA | TSXV |
| 187420 | GenoFocus Inc | KR | KQ |
| PQGA | ECOVYST INC. DL-01 | DE | F |
| ZEON | INTL ZEOLITE | DE | F |
| IZ | International Zeolite Corp | CA | V |