The commission is comprised of 12 mine resident offices found on the Tanzania mainland. The objective of the Mines Resident Office (MRO) is to monitor production provide authorization for mineral storage facilities and oversee the transportation of minerals to the Government Minerals warehouse.
| S/N | RESIDENT MINES OFFICE | MINES RESIDENT OFFICE |
|---|---|---|
| 1 | Ruvuma | Ngaka |
| 2 | Dar Es Salaam | Lugoba |
| 3 | Kahama | Bulyanhulu |
| 4 | Mara | North Mara |
| 5 | Tanga | Handeni |
| 6 | Kahama | Buzwagi |
| 7 | Geita | GGM |
| 8 | Kagera | Stamigold |
| 9 | Shinyanga | El- Hilal & WDL |
| 10 | Songwe | New Luika |
| 11 | Ruvuma | Tunduru |
| 12 | Kagera | Kyerwa |
| 13 | Kagera | Rusumo |