Sumatra Copper & Gold completes mineral resource estimates
Monday, May 18 2015 - 09:56 AM WIB
ASX-listed Sumatra Copper & Gold plc announced on Monday that following completion of the 4,380m drilling program during the March 2015 quarter, updated Mineral Resources estimates were completed for the Berenai, Siamang and Bujang deposits of the Tembang gold silver project in southern Sumatra.
The new resource models will form the basis of the final open pit designs in the lead-up to the commencement of mining activities scheduled for mid-2015.
Infill drilling at Siamang within the DFS Ore Reserve pit intersected wider zones of lower gradegold-silver mineralisation resulting in an overall increase in the Mineral Resource.
| Category | Tonnage | Au (g/t) | Ag (g/t) | Au (oz) | Ag (oz) |
| Measured | 60,000 | 2.5 | 48.3 | 5,000 | 94,000 |
| Indicated | 178,000 | 2.1 | 28.0 | 12,000 | 160,000 |
| Inferred | 190,000 | 1.8 | 22.0 | 11,000 | 134,000 |
| 2015 Total | 428,000 | 2.0 | 28.0 | 28,000 | 388,000 |
| 2014 Total | 181,202 | 3.7 | 55.0 | 21,500 | 319,000 |
Infill and extensional drilling completed at Berenai confirmed the 2014 Mineral Resource estimateand outlined an additional small mineralized lode in the footwall to the Berenai main lode.
| Category | Tonnage | Au (g/t) | Ag (g/t) | Au (oz) | Ag (oz) |
| Indicated | 1,628,000 | 2.1 | 34.3 | 112,000 | 1,797,000 |
| Inferred | 669,000 | 1.7 | 31.8 | 36,000 | 685,000 |
| 2015 Total | 2,297,000 | 2.0 | 33.6 | 148,000 | 2,482,000 |
| 2014 Total | 1,869,000 | 2.0 | 33.3 | 123,000 | 2,001,000 |
Extensional drilling at Bujang outside of the DFS pit design demonstrated continuity of the highgrade mineralisation down plunge towards the south-west. Hole RDD14445 intersected 2.2m at11.1g/t Au and 18g/t Ag from 100.9m.
| Category | Tonnage | Au (g/t) | Ag (g/t) | Au (oz) | Ag (oz) |
| Indicated | 217,000 | 2.8 | 37.0 | 19,500 | 261,000 |
| Inferred | 69,000 | 1.9 | 20.0 | 4,000 | 44,000 |
| 2015 Total | 286,000 | 2.6 | 33.0 | 24,000 | 305,000 |
| 2014 Total | 272,000 | 2.6 | 34.0 | 23,000 | 298,000 |
Editing by Johannes Simbolon