| Symbol | Name | Country | Exchange |
|---|---|---|---|
| RRDMF | Royal Road Minerals Ltd | US | OTC |
| RSCZF | Resinco Cap Partners Inc | US | OTC |
| RSMXF | Regency Silver Corp | US | OTC |
| RSNVF | Reyna Silver Corp | US | OTC |
| RSRBF | Robex Resources Inc | US | OTC |
| RTLGF | St. Augustine Gold and Copper Limited | US | OTC |
| RTNTF | Rio Tinto Ltd Aud2 O | US | OTC |
| RTOXF | Rotork Plc Ord 5P | US | OTC |
| RTPPF | Rio Tinto Plc | US | OTC |
| RTTGF | RTG Mining Inc | US | OTC |
| RUPRF | Rupert Res Ltd | US | OTC |
| RVSDF | Riverside Res Inc | US | OTC |
| RXRLF | Rex Minerals Ltd Me | US | OTC |
| RYES | Rise Gold Corp | US | OTC |
| RYMM | Royal Mines & Minerl | US | OTC |
| RYOOF | Rio Silver Inc | US | OTC |
| SAGD | South American Gold | US | OTC |
| SAGGF | Sterling Metals Corp | US | OTC |
| SAPLF | Sylvania Platinum | US | OTC |
| SASOF | Sasol Ltd Ord | US | OTC |