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Extraction par solution d Oyu Tolgoi.


Rio Tinto: the modern, safe, and sustainable Oyu Tolgoi mine
The Oyu Tolgoi mine, located in the South Gobi region of Mongolia, is one of the most modern, safe and sustainable mining projects in the world and Rio Tinto is one of its major stakeholders. The open-pit mine was established in 2011 and began processing copper two years later, with its current stakeholders being the government of Mongolia with 34% …


First undercut rings fired at Oyu Tolgoi block cave mine in …
Following a new long-term agreement between Rio Tinto, Turquoise Hill Resources (TRQ) and the Government of Mongolia, underground production has formally started at Oyu Tolgoi. In a major step forward, and after excavation of over 90 km of tunnels over 11 years, the first undercut rings were recently fired at the Oyu Tolgoi underground block …


Oyu Tolgoi partners reach comprehensive agreement and …
4 The 500ktpa target (stated as recovered metal) for the Oyu Tolgoi underground and open pit mines is underpinned 17 per cent by Proved Ore Reserves and 83 per cent by …


Oyu Tolgoi: light at the end of the tunnel?
In December 2015, Oyu Tolgoi LLC signed a finance deal for $4.4bn with a group of lenders to expand its copper-gold mine underground. The Mongolian mine, already in its open-cut phase, has shipped more than 1.5 million tonnes of concentrate to date, but a 2014 feasibility study conducted by the company found 25 billion pounds of recoverable …


IFC and MIGA to Provide More Than $2 Billion for Oyu Tolgoi…
MIGA is providing a guarantee of up to $1 billion to 13 of the same institutions. This is part of $4.4 billion in project debt financing organized by Oyu Tolgoi LLC, a joint venture company owned by Rio Tinto Plc-controlled Turquoise Hill Resources Limited and the Mongolian state-owned Erdenes Oyu Tolgoi LLC.


Press release: OYU TOLGOI Q4 2023 PERFORMANCE RESULTS
Press release: OYU TOLGOI Q4 2023 PERFORMANCE RESULTS. Ulaanbaatar, Mongolia – Oyu Tolgoi released its latest performance scorecard highlighting key performance metrics for the fourth quarter of 2023 and provided an update on the underground mine production.. Oyu Tolgoi continues the ramp-up of the underground mine safely ahead of …


Oyu Tolgoi partners reach comprehensive agreement and …
As a result, the OT Board, comprised of representatives of Rio Tinto, TRQ and Erdenes Oyu Tolgoi (EOT) which is wholly owned by the Government of Mongolia, has unanimously approved commencement of underground operations. ... Further study work is also underway to assess the extraction methodology and ultimate recovery of the Panel 0 …


Oyu Tolgoi Project, in South Gobi Desert, Mongolia
Oyu Tolgoi holds 80% stake in the Entrée/Oyu Tolgoi JV property, while the remaining 20% is held by Entrée. Oyo Tolgoi ore reserves The total proven and probable mineral reserves at Oyo Tolgoi are estimated to be 1,450 million tonnes (Mt) of ore, graded at 0.86% copper, 0.3 grams per tonne (g/t) of gold, and 1.97g/t of silver.


Oyu Tolgoi underground mine project, Mongolia – update
Project Description The Oyu Tolgoi openpit mine was completed on schedule in less than 24 months and production started in 2013. Since then, more than 440 000 t of copper have been sold.


Paper: Oyu Tolgoi: engineering a Mongolian caving dynasty
Oyu Tolgoi comprises multiple copper, gold and molybdenum deposits located within a more than 23 kmlong structural corridor, the bulk of the known deposits requiring underground extraction. Surface mining commenced at Oyu Tolgoi in 2011 and first copper concentrate was produced in 2013. Mining operations have now started from …


(PDF) The story of the discovery of Oyu Tolgoi
"The giant Oyu Tolgoi porphyry copper deposit: discovery history and implications for future exploration in the Gobi". Paper presented at the SE Europe Geoscience Foundation Conference. Sofia ...


Oyu Tolgoi underground mine project, Mongolia – update
Project Description The Oyu Tolgoi underground mine is expected to produce more than 500 000 t/y of copper from 2028 to 2036, compared with current openpit production of 175 000 t/y to 200 000 t/y.


Rio Tinto confirms development capital and timeline …
solution – in order to ensure that the project can commence caving operations in 2021. This will unlock the most valuable part of Oyu Tolgoi, delivering significant benefits for the shareholders of Oyu Tolgoi and the people of Mongolia. At peak production, Oyu Tolgoi is expected to operate in the first quartile of the copper cash cost curve ...


Entrée Resources
The Entrée/Oyu Tolgoi JV Property comprises the eastern portion of the Shivee Tolgoi mining licence and all of the Javhlant mining licence. The Entrée/Oyu Tolgoi JV …


Oyu Tolgoi unearthed | Undermining Mongolia
Production issues. The whole Oyu Tolgoi project consists of two phases. Phase 1 is an open pit mine, phase 2 is an underground operation. In its first year of operation in 2013, the open pit mine produced a staggering 77,000 tonnes of copper and almost 4,500 kg of gold; within three years, those rates had more than doubled.


Underground Development
Oyu Tolgoi consists of a series of deposits containing copper, gold, and silver. The deposits stretch over 12 kilometres, from the Hugo Dummett North Zone in the north through the adjacent Hugo Dummett South Zone, down to the Oyut Deposit, extending to the Heruga Deposit in the south.With considerably higher mineral grades than the open …


Underground production celebrated at Oyu Tolgoi
Oyu Tolgoi works with more than 500 national suppliers and has spent around $15 billion in Mongolia since 2010, including $4 billion of taxes, fees and other payments to the state budget.


Rio Tinto: the modern, safe, and sustainable Oyu Tolgoi mine
The Oyu Tolgoi mine, located in the South Gobi region of Mongolia, is one of the most modern, safe and sustainable mining projects in the world and Rio Tinto is one of its …


New mine design makes $10 billion of OT ore unextractable, …
Extraction at the Oyu Tolgoi underground mine, shown as Hugo North in maps, is likely to start in 2023 but will end sooner than expected. This is because the updated Feasibility …


Exhumation and Preservation of Porphyry Cu-Au Deposits at Oyu Tolgoi
Burial of the Cu-Au deposits at Oyu Tolgoi soon after their exhumation was critical to their preservation. Exhumation and subsequent burial occurred at ~371 Ma, during a short time frame within the overlapping U-Pb zircon ages for the quartz monzodiorite, mineralized porphyry clast, unmineralized dacite sequence, and granodiorite unit. ...


Rio Tinto and Mongolia settle feud over Oyu Tolgoi copper …
Rio Tinto Plc, and the Mongolian government said on Tuesday they have reached an agreement to end a long-running dispute over the $6.93 billion expansion project for the Oyu Tolgoi copper-gold ...


Oyu Tolgoi Brand
Oyu Tolgoi has a requirement that any business we do, we do with Integrity, this is outlined in a document called "The way We Work". This means no facilitation payments, no bribes, no favors or payment in kind. It also means that all Conflicts of Interest should be declared before doing business with Oyu Tolgoi.


Our Company
Oyu Tolgoi LLC is a Mongolian company, jointly owned by Erdenes Oyu Tolgoi LLC on behalf of the Government of Mongolia (34 per cent) and Rio Tinto (66 per cent). Rio Tinto also manages Oyu Tolgoi on behalf of the partnership.Oyu Tolgoi is led by a Management Team of experts in all aspects of the mining business, and this team drives the strategic …


Oyu Tolgoi prepares concentrator for higher grades
Oyu Tolgoi has also worked on the value chain, introducing high intensity blasting in the open pit to increase help increase fragmentation for material going to the mill. The …


Oyu Tolgoi | Projects | Redpath Mining Contractors and …
Redpath, through a joint venture agreement, is a major contractor at the Oyu Tolgoi mine, providing a range of services to the project since 2005. Most noteworthy at Oyu Tolgoi is the installation of the world's largest friction hoist (6.75 m diameter). Sinking shafts 1, 2, and 5 remain Redpath's most prolific shaft projects, with shaft 2 ...


Oyu Tolgoi underground mine project, Mongolia – update
Project Owner/s. Rio Tinto (66%) and the government of Mongolia (34%). Project Description. The Oyu Tolgoi openpit mine was completed on schedule in less than 24 …


Underground production starts at Oyu Tolgoi
Oyu Tolgoi is expected to produce around 500 000 t/y of copper from 2028 to 2036 from the openpit and underground, enough to produce around six-million electric vehicles annually, and an average ...


Entrée Resources
The Oyu Tolgoi project is one of the world's largest new copper-gold mines and is located in the South Gobi region of Mongolia. The Oyu Tolgoi project comprises two separate land holdings: the Entrée/Oyu Tolgoi JV Property, which is a partnership between Entrée and OTLLC, and the Oyu Tolgoi mining licence, which is held by OTLLC.


Oyu Tolgoi partners reach comprehensive agreement …
Oyu Tolgoi is one of the largest known copper and gold deposits in the world. It is also one of the most modern, safe and sustainable operations in the world. ... Further study work …


Oyu Tolgoi
1 The 500ktpa target (stated as recovered metal) for the Oyu Tolgoi underground and open pit mines is underpinned 17 per cent by Proved Ore Reserves and 83 per cent by Probable Ore Reserves for the years 2028-2036. These production targets have been scheduled from current mine designs by Competent Persons in accordance with the requirements of the …

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