Operations AngloGold Ashanti In Continental Africa Region

AngloGold Ashanti’s business strategy is reviewed regularly to determine progress in its implementation against the backdrop of a dynamic operating and regulatory environment. These evaluations allow for tactical adjustments necessary to achieve the ultimate goal of becoming “the leading mining company”. In a continuous drive to be more efficient, AngloGold Ashanti Ltd, Continental Africa Region, has embarked on a process of identifying and isolating those items that are surplus to current mining requirements. Given valued relationship history with a large International Mining Business segment, have decided to make these items available in the market on an Ex-Works (INCOTERM 2000) Ex-Mine “For-sale” basis.
       AngloGold Ashanti has six producing mines and processing operations in five countries in the Continental Africa region. Its operations in the region include Geita and Siguiri. Iduapriem is an open-pit mine and its processing facilities include a Carbon-in-pulp (CIP) plant. It comprises the Iduapriem and Teberebie properties on a 110 square kilometers concession. The mine is situated in the western region of Ghana, in the 70 kilometers north of the coastal city of Takoradi and 10 kilometers southwest of Tarkwa. Obuasi is located in the Ashanti Region of Ghana, 60 kilometers in the south of Kumasi. Mining operations are primarily underground, to a depth of 1.5 kilometers. Siguiri is a multiple open-pit oxide gold mine, is AngloGold Ashanti’s sole operation in the Republic of Guinea. It is located in the district of Siguiri, northeast of the country’s capital Conakry. On surface, Siguiri’s gold processing plant treats about 998,000 tons per month.
       AngloGold Ashanti has interests in three gold mining operations in Mali, namely, Sadiola, Yatela and Morila. It manages two of these operations, Sadiola and Yatela. The Morila mine is situated southeast of Bamako, the capital of Mali. The operation treats low-grade stockpiles while the plant has annual throughput capacity of 3.7 million tons. The operations at Morila involve processing of the stockpile which stood at 1.3 million tons. The Sadiola mine is situated in western Mali, south-southwest of the regional capital Kayes. On-site surface infrastructure includes 4.9 million tons per annum CIP gold plant. The Yatela mine is situated in western Mali, north of Sadiola and south-southwest of the regional capital Kayes. The Geita gold mine is located in the Lake Victoria goldfields of the Mwanza region of Tanzania. The Geita gold mine is a multiple open pit operation with underground potential and is serviced by 5.1 million tons per annum CIL processing plant.
       The Kibali Gold Mine comprises 10 permits covering an area of 1,836 square kilometers in the Moto goldfields of the north-east DRC. The Kibali Gold Mine has a processing operation capable of producing an average of 600 thousand ounces of gold per annum by treating six million tons per annum (Mtpa) throughput. The processing plant has a capability of process oxide and sulphide material.

This is mining operations AngloGold Ashanti in CONTINENTAL AFRICA REGION :

AngloGold Ashanti has six producing mines and processing operations – of which the group manages four – in five countries in the Continental Africa region, following much activity in 2014 with the sale of the Navachab mine in Namibia, the transition to limited mining at Obuasi in Ghana and the cessation of mining at Yatela in Mali.

Democratic Republic of the Congo

Kibali Gold Mine
      Kibali, which began commercial production in October 2013 is steadily ramping up production. The mine is adjacent to the town of Doko and 180km from Arua on the Ugandan border. The project is co-owned by AngloGold Ashanti (45%), Randgold Resources Limited (45%) and Société Minière de Kilo-Moto (SOKIMO) (10%), a state-owned gold mining company. Randgold Resources manages and operates the mine. It is expected that Kibali will be one of the largest mines of its kind in Africa.
The project is a joint venture (JV) of Rangold (45%), AngloGold Ashanti (45%) and Sokimo (10%). It is being developed and operated by Rangold Resources.Kibali gold mine is located within the Moto greenstone belt. The belt contains Archean Kibalian volcano-sedimentary rocks and ironstone-chert horizons.The volcano-sedimentary sequence comprises of sedimentary rocks, variety of pyroclastic rocks, basaltic flow rocks, mafic-intermediate intrusions and intermediate-felsic intrusive rocks.The gold fields at Kibali are characterised by northeast and northwest trending faults. The gold mineralisation is scattered throughout the region.It is mainly found in volcaniclastics, coarse volcanicastics, sedimentary rocks and banded ferruginous cherts. The mineralisation is believed to have occurred structurally through quartz-carbonate alteration and pyrite.


Iduapriem Gold Mine
      The Iduapriem Gold Mine is an open-pit gold mine situated 10 km south of Tarkwa, in the Western Region of Ghana. The mine is owned by AngloGold Ashanti and consists of the Iduapriem and the Teberebie operation, which were merged in 2000. Iduapriem, which comprises the Iduapriem and Teberebie properties in a 110km² concession, is located in the Western Region of Ghana, some 70km north of the coastal city of Takoradi and 10km southwest of the Tarkwa mine.  The mine is owned by AngloGold Ashanti and consists of the Iduapriem and the Teberebie operation, which were merged in 2000.  Iduapriem is an open-pit mine and its processing facilities include a carbon-in-pulp (CIP) plant.

Obuasi Mine
      Obuasi Gold mine is located in the Ashanti Region, approximately 60km south of Kumasi. Mining operations have primarily been underground, to a depth of 1,500m. Obuasi, located in the Ashanti region of Ghana 320 kilometres northwest of the capital Accra, is a large, high-grade deposit with proven and probable ore reserves (as reported by AngloGold Ashanti in their 2014 Annual Report) of 24.53Mt at 6.70g/t for 5.29Moz, part of a substantial mineral resource base.  In 2012, AngloGold Ashanti initiated a programme to modernise the mine, principally by starting to develop a ramp access that will ultimately run from surface to high-grade blocks of ore underground.  The ramp will supplement current vertical hoisting infrastructure and help debottleneck the underground operation by allowing for greater ease in transporting people and materials underground, and transporting ore to surface.  This is a necessary step ahead of the envisaged transformation of the mine into a modern, mechanised operation
      At the end of 2014, AngloGold Ashanti converted Obuasi to limited operations, ceasing underground production, retrenching the workforce, but continuing to process tailings and starting a feasibility study on the redevelopment of the mine.  Development of the decline ramp has continued over this period.
      The development plan will build on this feasibility study with the intention of establishing a more focused, efficient, mechanised high-grade operation, and is expected to take about four months to complete.  If the development plan meets both parties’ investment criteria, and assuming all other conditions are satisfied, Randgold and AngloGold Ashanti will form a new joint venture company.
       Randgold and AngloGold Ashanti will then be jointly responsible for funding the redevelopment of Obuasi in line with the agreed development plan.  A Randgold group entity will be appointed as operator of the mine, and Randgold and AngloGold Ashanti will appoint an equal number of directors to the board of the joint venture company, with board and shareholder decisions to be approved by both parties.
      Randgold chief executive Mark Bristow said “Obuasi is a world-class resource.  We now have to see if we can convert it into a world-class mine.  We have a long history of cooperation with AngloGold Ashanti and we look forward to working with them again on charting a new course towards a viable future for Obuasi.”
      AngloGold Ashanti has since 2012 effected a range of improvements to modernise Obuasi and – in line with its strategy – has progressed a feasibility study as the critical next step toward breathing new life into this important mine,” AngloGold Ashanti CEO Srinivasan Venkatakrishnan said.  “Our partnership with Randgold has proved successful for well over a decade in bringing value from sustainable gold mining to all stakeholders and we believe that pooling the extensive expertise and the capital of these two companies will improve our ability to bring Obuasi’s world-class high-grade gold deposit to account.”


Siguiri Mine
      Siguiri Gold Mine is a multiple open-pit oxide gold mine in the relatively remote district of Siguiri, around 850km northeast of the country’s capital, Conakry. The area has significant potential for gold mining and has long been an area of traditional artisanal mining. The gold processing plant treats about 30,000t daily. AngloGold Ashanti holds an 85% interest in Siguiri, with the remaining 15% held in trust for the nation by the Government of Guinea.The mine is located in the heart of an ancient gold mining region, thought to have been known since the 13th century as the basis of the Mandingo Empire. At its peak this empire controlled an area in West Africa the size of the United States.
       This concession is dominated by Proterozoic Birmian rocks which consist of turbidite facies sedimentary sequences. There are essentially two kinds of gold deposit that occur in the Siguiri basin: laterite or CAP mineralisation and in situ quartz vein-related mineralisation. The first appears as aprons of colluvial or as palaeo-channels of alluvial lateritic gravel adjacent to, and directly above, the latter.
      The quartz vein-related mineralisation is hosted in meta-sediments with the better mineralisation associated with vein stockworks that occurs preferentially in the coarser, brittle siltstones and sandstones. The mineralised rocks have been deeply weathered to below 100m in places to form saprolite or SAP mineralisation.AngloGold Ashanti had Mineral Resources of 67.49Moz and Ore Reserves of 21.62Moz at 31 December 2009 in continental African region. Of these, Siguiri accounted for Ore Reserves of 3.25Moz and Mineral Resources of 5.94Moz.


Morila Mine 
      Morila Gold Mine is a joint venture between AngloGold Ashanti and Randgold Resources, which manages the mine, and in which each has a 40% interest. The Government of Mali owns the remaining 20%. Morila is situated 180km southeast of Bamako, the country’s capital. The operation ceased mining operations in 2009 and currently treats low-grade stockpiles and marginal waste. The plant, which incorporates a conventional carbon-in-leach (CIL) process with an up-front gravity section to extract the free gold, has an annual through put capacity of 4.3Mt. In 2014, 18.4Mt of material from the pit and 3.2Mt of stockpile material were processed.

Sadiola Mine 
      Sadiola gold mine is a joint venture between AngloGold Ashanti (41%) and IAMGOLD (41%). The Government of Mali owns the remaining 18%. The Sadiola mine is situated in south-western Mali, some 77km south-southwest of the regional capital Kayes. Mining takes place in five open-pits. On-site surface infrastructure includes a 4.9Mt per annum carbon-in-leach (CIL) gold plant where the ore is eluted and smelted.
       The mining operations comprise the Sadiola main pit and four satellite pits. The plant was originally designed to process soft oxide ore but was eventually modified to treat hard oxides as well.Mining at the main pit now stands complete with operations being carried in the third and fourth satellite pits situated southeast of the main pit.
Expansion of the Mali-based gold mine”The Sadiola Mine is an open pit gold mine which has been operating since 1996 in Kayes, the capital region of Mali.”Operating for more than 15 years, the mine is scheduled to close between 2013 and 2015. However, a pre-feasibility study completed in 2009 to mine deep ore sulphides is expected to extend the mine-life by an additional six years until 2019.
Yatela Mine 
      Yatela Gold mine is situated 25km north of Sadiola. Yatela is 80% owned by the Sadiola Exploration Company Limited, a joint venture between AngloGold Ashanti and IAMGOLD, giving each a 40% stake. The balance of 20% is owned by the Government of Mali. Mining excavation activities have been suspended. Processing of the heap leach pads and ore already mined will continue until the end of 2016. Ore extraction in most of the open pits has been completed and the mine has begun closure and rehabilitation procedures.


Geita Mine 
      Geita gold mine is located in northwestern Tanzania, in the Lake Victoria goldfields of the Mwanza Region, about 120km from Mwanza and 4km west of the town of Geita Continental Africa region. And Geita Mine were one of flagship mines. The Geita gold deposit, which is currently mined as a multiple open-pit operation, has underground potential and is currently serviced by a 5.2Mt per annum carbon-in-leach (CIL) processing plant. While Geita generates its own power, the operation of its power generating facility is outsourced and fuel is delivered by road.

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