Sihayo-Sambung

Mining

Sihayo-Sambung Mining

The Sihayo-Sambung gold project holds a 7th generation Contract of Work (KK) permit issued by the Indonesian government in 1998 with a current total area of ​​66,200 hectares. The planned Sihayo-Sambung gold mine is estimated to be 501 hectares wide and will have a mining period of 9 years. The Sihayo-Sambung gold project is located about 15 km from the capital city of Mandailing Natal Regency, Panyabungan. This prospect was first discovered in 1998 until further exploration in the Sihayo area began in the late 1990s. We are in the process of completing a feasibility study build a Mine to extract and process gold The Sihayo-Sambung gold project is already in the pre-construction stage to start gold mining activities.

Previous
Next

Sihayo-Sambung is located in the active zone of the Trans Sumatra Fault Zone (TSFZ) and in the Sunda-Banda magmatic arc which is Neogene in age, formed by the collision between 2 plates forming a subduction zone. Sihayo-Sambung consists of layers of calcareous sedimentary rock – volcaniclastic that are Permian age and then separated by unconformity zones with layers of young Tertiary/younger sedimentary rock as cap rock. Sihayo-Sambung has gold reserves of the type Sedimentary Rock Hosted Disseminated Gold system with micron-sized gold. From the results of the calculation of resources and reserves in 2020 (March 2020), Sihayo stores gold resources of 1.43 million Oz (1.80 g/t Au) and gold reserves of 0.75 million Oz with an average Gold grade of 2.16 g. /t Au and cut of grade “CoG 0.39 g/t Au”. The connection prospect holds gold resources of 136 thousand Oz (1.50 g/t Au) and gold reserves of 82 thousand Oz with an average Gold grade of 1.69 g/t Au and cut of grade “CoG 0.44 g/t Au”

Sumber Gambar : https://www.sihayogold.com/

  • Figures may not sum due to rounding and significant figures do not imply an added level of precision
  • Reported at a cut-off grade of 0.6 g/t for gold
  • Oxide<=1.50gm/cc, transition>=1.51<=2.50gm/cc and Fresh>=2.51gm/cc
  • Numbers for the Sambung deposit are local mine depleted
  • Refer to  23 June 2020 ASX release titled Sihayo Gold Project Definitive Feasibility Study for updated resource statement including JORC Table 1

Sumber Gambar : https://www.sihayogold.com/

  • Figures may not sum due to rounding and significant figures do not imply an added level of precision
  • The Ore Reserve is based conventional open pit mining
  • A Net Smelter Revenue (NSR) cut off was calculated using:
  • A gold price of US$1,450/oz
  • Royalty of 3.75% of recovered gold value
  • Tonne weighted average metallurgical recovery of 71%
  • Refer to  23 June 2020 ASX release titled Sihayo Gold Project Definitive Feasibility Study for updated reserve statement including JORC Table 1