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Gold mine Mialy in Kazakhstan[821].pptx

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Gold mine Mialy in Kazakhstan[821].pptx

  1. 1. GENERAL INFORMATION ABOUT THE MIYALY DEPOSIT • The Miyaly deposit was discovered in 1949. It is located in the Zharma region of the East Kazakhstan region. Ust-Kamenogorsk city 90 km to the east, Semipalatinsk city - 120 km north-west, Charsk city - 60 km south-west. The nearest railway. station - Charskaya. The nearest settlements are the settlement of the former mine Oktyabrsky, 18 km to the south-west, pos. Chalobay and the village. Auezov, 40 km to the south-east. • An asphalt road Ust-Kamenogorsk - Semipalatinsk runs 10-20 km north-west of the deposit, with which the site is connected by a dirt road (20 km). • The Bakyrchik and Bolshevik deposits are being developed in the area of operations. • The Kyzyl-Su River flows 4 km south-west of the TMO Miyaly field. It has a maximum water flow in spring floods, up to 25 m3 / sec. There is also a sufficient amount of water at the site of work in the worked out pits. • A high-voltage power transmission line with a voltage of 10 thousand volts was laid to the central part of the Miyaly field. The last 3 km of the line are missing. • Harmful impurities, such as arsenic, carbon, alumina, antimony, are found in the ores of the deposit in negligible quantities and can practically not affect the quality of ore processing. • All ore bodies are exposed to the surface. The development of the deposit was carried out by an open-pit method, ore processing was carried out by the heap leaching method. • The last development of the Miyaly deposit began in 1999 and ended in 2006. • On the territory of the deposit there are more than 5 million tons of technogenic mineral formations (TMF).
  2. 2. Samir-Altyn LLP on 20.04.2018 received a contract for 11 years for the extraction of minerals from man-made mineral formations (TMO) of the Miyaly deposit in the East Kazakhstan region. The reserves were approved by the State Reserves Committee on April 14, 2017 in the amount of: for category C - 849.27 kg (for category C1 - 285.88 kg, C2 - 563.39 kg), in category P1 - 1153.02 kg. The volume of all TMO is 5,022,335 tons. 2 heaps of leaching - 2.5 million tons 6 overburden dumps - 2.5 million tons Average grade - 0.47 g / t The ores are quartz-veined, oxidized. Gold is thin, free Beneficiation method - Leaching. (Extract 66%). Benefits: large volume of mined ore and everything on the surface; you can start this year; the possibility of an increase in gold reserves in TMO during the year from 850 kg to 2 tons; Possibility to explore and develop the deposit itself. (As of 01.01.2016, the state balance sheet contains reserves of unworked oxidized ores in the C2 category in the amount of 271 thousand tons of ore, 380 kg of gold with an average content of 1.41 g / t. The inferred resources of primary ores were estimated by JV Charaltyn during geological exploration at the Miyaly deposit in the period 1997-2001 and are 33 for the ore body, down to a depth of 100 m, with a cut-off grade of 1 g / t and an average gold grade of 3 , 2g / t - 2.75 t of gold).
  3. 3. Leach heaps
  4. 4. Overburden dump
  5. 5. The depth is up to 30 meters. Filled with melt and ground water. In summer, the water does not go away. There are several quarries on the territory
  6. 6. Location of ore bodies of the Miyaly deposit
  7. 7. - unused orebody - dumps and KV (2 squares on the right) Map of dumps, KV, ore bodies and quarries
  8. 8. Position Unit measuremen ts One month one year (8 working months) mining period 1 year 6 years performance Tonn/year 75 000 600 000 3 600 000 content г/т 0,46 0,46 retrieval 66% auissue Au kg 20,77 182,16 1 092,96 troy ounce 1900 $ metal release $ 1 391 093,25 11 128 745,98 66 772 475,88 cost price $/т 4,21 TOTAL, the cost of processing $ 315 630,08 2 525 040,67 15 150 244 INCOME PART without income taxes $ 1 075 463,16 8 603 705,31 51 622 231,88 INCOME PART including taxes (CIT and MET) $ 806 597,37 6 452 778,98 38 716 673,91 Option 1: Calculation for processing 600 thousand tons of solid waste per year - $ 5.7 million. Capital expenditures: 2 873 972,22 Unexpected expenses 30%: 862 191,67 Total with unforeseen: 3 736 163,89 Total costs in the first year: 5 837 593,44
  9. 9. Option 2: Start working on centrifugal concentrators • From the leach tailings, gold is enriched in centrifugal concentrators in the conditions of min 0.28 gt. - 60g.t. (concentrate). Max 0.8 gmt - 220 gmt (concentrate). The extraction coefficient is at the level of 25 -45%. • Pessimistic scenario (investment of $ 1 million): • 10konts * 10t / h * 10h / day * 30days * 6months = 180,000 tons * 0.47g / t (content) * 45% (extract) * 50% (admin consumption) * 70% (discount) == 13.324kg 13.324 * 60450 $ (per kg at 1880 $ / oz) = 805 466 -25% (taxes) = 604 099 $ • Realistic scenario (investment $ 1 million): • 10kont * 15t / h * 10h / day * 30days * 6months = 270,000 tons * 0.47g / t (content) * 45% (extract) * 50% (admin consumption) * 70% (discount) == 19.986kg 19.986 * 60450 $ (per kg or 1880 $ / oz) = 1 208 199 $ -25% (taxes) = 906 149 $ • • Optimistic scenario with a content of 1 g / t (investment of 1 million USD): • On the territory of the deposit, there are remnants of 2 ore warehouses, around the open pit walls with a content of up to 2 g / t, which is enough for 1 season • 10konts * 15t / h * 10hours / day * 30days * 6months = 270,000 tons * 1g / t (content) * 45% (extract) * 50% (administrative consumption) * 70% (discount) = 42.525kg * 60450 $ (per kg or $ 1880 / oz) = $ 2,570,636 -25% (taxes) = $ 1,927,977 • * During operation, you can increase the recovery factor up to 50% • Switch to heap leaching from 2 or 3 years
  10. 10. Required investments • $ 1 million: • 200,000 -10 centrifugal concentrators PROK - 20 tons / hour for $ 20 thousand • 200,000 - screens and pumps • 200,000 - special equipment • 100,000 - power lines • 100,000 - town • 100,000 - operating expenses • 100,000 - unforeseen expenses • As a last resort, you can start • from 500 thousand $: • 100,000 - 5 centrifugal concentrators PROK - 20 tons / hour for $ 20 thousand • 100,000 - screens and pumps • 100,000 - special equipment • 100,000 - operating expenses • 100,000 - unforeseen expenses • Pessimistic scenario $ 604,099 • Realistic Scenario - $ 906,149 • Optimistic scenario -1,927,977 $ • Pessimistic scenario - $ 302,049 • Realistic scenario - $ 453,074 • Optimistic scenario -963 988 $

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