1 RIO TINTO SAYS Q3 PRODUCTION FALLS ON PLANNED MAINTENANCE AND SAFETY PAUSES WWW.MINING.COM PUBLISHED:2018/10/16      2 AUSTRALIAN FIRM ACQUIRES CENTERRA GOLD ASSETS IN MONGOLIA WWW.ZGM.MN PUBLISHED:2018/10/16      3 RUSSIAN DEFENSE MINISTER TO PAY OFFICIAL VISIT TO MONGOLIA WWW.MONTSAME.MN PUBLISHED:2018/10/16      4 NORTH KOREA STRENGTHENS TIES WITH MONGOLIA WWW.KOREATIMES.CO.KR PUBLISHED:2018/10/16      5 AZERBAIJAN SENT AN EXPORT MISSION TO MONGOLIA WWW.AZERNEWS.AZ PUBLISHED:2018/10/16      6 DEPUTY PM CALLS FOR STRONGER VIETNAM-MONGOLIA TIES ACROSS MULTIPLE FIELDS WWW.VIETNAMPLUS.VN PUBLISHED:2018/10/16      7 MONGOLIAN NATIONAL OLYMPIC COMMITTEE HOST INAUGURAL BEACH SPORTS AND ART GAMES WWW.INSIDETHEGAMES.BIZ PUBLISHED:2018/10/16      8 ON AND OFF WIND AND SOLAR POWER PUSHING COAL PLANTS TO THE BRINK WWW.MINING.COM PUBLISHED:2018/10/16      9 FACEBOOK TOOL MAKES UK POLITICAL ADS 'TRANSPARENT' WWW.BBC.COM PUBLISHED:2018/10/16      10 HUNNU AIR BEGINS TO OPERATE BETWEEN ULAN-UDE AND MANZHOULI WWW.NEWS.MN PUBLISHED:2018/10/16      ДАРХАН, СЭЛЭНГЭ, ТӨВ, ХӨВСГӨЛИЙН АЛТ ТУШААГЧИД НИЙСЛЭЛИЙГ ЗОРИХ ШААРДЛАГАГҮЙ WWW.GOGO.MN НИЙТЭЛСЭН:2018/10/16     МӨНГӨНИЙ НИЙЛҮҮЛЭЛТИЙН ӨСӨЛТӨД ТӨГРӨГ, ВАЛЮТЫН ХАРИЛЦАХ, ТӨГРӨГИЙН ХАДГАЛАМЖ ГОЛЛОН НӨЛӨӨЛЖЭЭ WWW.BLOOMBERGTV.MN  НИЙТЭЛСЭН:2018/10/16     "УГТУУЛ-АЛТАЙ" ХХК: ДОТООДЫН ҮЙЛДВЭРҮҮД БҮРЭН ЧАДЛААРАА АЖИЛЛАВАЛ 2020 ОН ГЭХЭД ӨНДӨГ ИМПОРТЛОХ ШААРДЛАГАГҮЙ БОЛНО WWW.BLOOMBERGTV.MN  НИЙТЭЛСЭН:2018/10/16     ХҮН ТӨВТЭЙ БИЗНЕСИЙН ХААНЧЛАЛ АЙСУЙ WWW.ZGM.MN НИЙТЭЛСЭН:2018/10/16     ГАЗРЫН ТОС БОЛОВСРУУЛАХ ҮЙЛДВЭРИЙН ДЭД БҮТЦИЙН АЖИЛ 40 ХУВЬТАЙ БАЙНА WWW.UNUUDUR.MN НИЙТЭЛСЭН:2018/10/16     СТРАТЕГИЙН ОРД АШИГЛАДАГ КОМПАНИУДЫН ДАНСЫГ МОНГОЛБАНКИНД БАЙРШУУЛАХ ХУУЛИЙН ТӨСЛИЙГ ДЭМЖЛЭЭ WWW.MEDEE.MN НИЙТЭЛСЭН:2018/10/16     У.ХҮРЭЛСҮХ: ДОТООДДОО ҮЙЛДВЭРЛЭСЭН ЦЕМЕНТИЙГ ЭКСПОРТОД ГАРГАХ НЬ ЧУХАЛ WWW.MONTSAME.MN НИЙТЭЛСЭН:2018/10/16     АЖ АХУЙН НЭГЖҮҮД ЖДҮДС-ГААС 3.8 ИХ НАЯД ТӨГРӨГИЙН САНХҮҮЖИЛТ ХҮСЧЭЭ WWW.MONTSAME.MN НИЙТЭЛСЭН:2018/10/16     ВАЛЮТЫН ЗОХИЦУУЛАЛТЫН ТУХАЙ ХУУЛИЙН ТӨСЛИЙГ ХЭЛЭЛЦЭХ ЭСЭХИЙГ УИХ ЭНЭ ДОЛОО ХОНОГТ ШИЙДНЭ WWW.BLOOMBERGTV.MN НИЙТЭЛСЭН:2018/10/15     ХЭРЭГЛЭЭНИЙ ЗЭЭЛИЙН ӨСӨЛТ АЙЛ, ӨРХҮҮДИЙГ ӨРИЙН ДАРАМТАД ОРУУЛЖ БАЙНА ГЭВ WWW.MONTSAME.MN  НИЙТЭЛСЭН:2018/10/15    

Update on Oyu Tolgoi's underground development www.gogo.mn

After facing major critics and disputes for over a year, the second phase of Oyu Tolgoi’s underground development has started 18 months ago. As of today, a total of USD 1.4 billion, which equals 30 percent of the company’s total investment, has been spent on the underground development.

Rio Tinto Group, 66 percent stakeholder of Oyu Tolgoi JSC, previously announced to invest USD 5 billion for the development. Over 80 percent of Oyu Tolgoi’s total value lies deep underground and the extraction cost is estimated to be around MNT 12 trillion. The company expects that 60 percent of total investment of the underground development will be financed this year. Furthermore, Oyu Tolgoi JSC plans to employ around 14 thousand workforce, which displays the intensity of the second phase development. The company recently announced that the sinking of Shaft 2 is expected soon and fit out will progress throughout 2018. Also, the sinking of Shaft 5, which progressed during the fourth quarter of 2017, is expected to be completed in the first quarter of this year. Armando Torres, CEO of Oyu Tolgoi JSC, announced to increase domestic companies’ involvement in the underground development project.

The company will be able to operate 24/7 on two shifts once the underground mine complex, which is using block-caving mining techniques, starts operation. The deepest shaft is the equivalent of 12 Blue Sky Towers in depth and is expected to progress throughout the year.

The block caving method of mining uses the force of gravity to extract ore from an underground deposit. A series of lateral tunnels are developed under the deposit with an undercut level and extraction level. The ore is undercut creating a void which allows the rock above to fall under its own weight into draw bells. Loaders on the extraction level then remove the fallen rock from the draw points, allowing more rock to feed into the draw bell and as the void created by the initial undercut propagates up through the deposit.

In addition, the company is planning to build around 10 km long conveyor, 3 maintenance shops, 2 drilling machine shops and a shotcrete station, as well as to drill 200 km long tunnels. Around 1000 subcontractor and suppliers can be involved in the underground development. Gold and copper contents in the concentrate is estimated to be tripled with the completion of the underground mine. The company is planning to start its operation by 2020 and reach full capacity by 2027. This will allow Oyu Tolgoi JSC to annually produce 500 thousand tons of copper. The company is currently producing around 175-200 thousand tons of copper annually.

Bayartogtokh.B, Tugsbilig.B



Published Date:2018-02-01