| Abbreviation | Definition |
|---|---|
| MDAOA | Modena Resources Limited |
| MDG | MEDTECH Global, LTD. |
| MDI | Middle Island Resources Limited |
| MDL | Mineral Deposits Ltd |
| MDO | Mindoro Resources Limited |
| MDS | Midas Resources Ltd |
| MDSOC | Midas Resources Limited |
| MDV | MediVac Ltd |
| MDX | Mindax Ltd |
| MEF | MEF |
| MEG | MCM Entertainment Group Ltd |
| MEI | Meteoric Resources NL |
| MEICA | Meteoric Resources NL |
| MEL | Metgasco, LTD. |
| MEO | Methanol Australia Ltd |
| MEP | Minotaur Exploration Ltd |
| MES | Mesbon China Nylon Ltd |
| MET | Memtec Ltd t/over |
| MEU | Maramota Energy, LTD. |
| MEY | Marenica Energy Ltd |