First Cobalt

Shaft 1 reaches the top of Platreef's "Flatreef" Deposit at 780 metres below surface at Ivanhoe's platinum-group metals, nickel, copper and gold project in South Africa

First underground mining intersection of the Platreef mineralized belt on the Northern Limb of South Africa's Bushveld Complex, the world's premier platinum producing region; Flatreef Deposit is an estimated 26 metres thick at Shaft 1 intersection

Mokopane, South Africa--(Newsfile Corp. - October 8, 2018) - Ivanhoe Mines' (TSX: IVN) (OTCQX: IVPAF) Executive Co-Chairman Robert Friedland, Chief Executive Officer Lars-Eric Johansson and Ivanplats' Managing Director Dr. Patricia Makhesha announced today that Platreef's Shaft 1 has reached the top of the high-grade Flatreef Deposit (T1 mineralized zone) at a depth of 780.2 metres below surface.

The achievement by the Ivanplats shaft-sinking team is the first time that the Platreef — a strongly mineralized, polymetallic belt that extends northward from the town of Mokopane for more than 30 kilometres — has been intercepted by underground mining activity. Ivanplats' Flatreef Deposit, with a strike length of six kilometres, lies within a flat to gently dipping portion of the Platreef mineralized belt at relatively shallow depths of approximately 700 to 1,200 metres below surface.

The Platreef mining team has delivered the first ore from the underground mine development to a surface stockpile for metallurgical sampling. The estimated thickness of the mineralized reef (T1 & T2 mineralized zones) at Shaft 1 is 26 metres, with grades of platinum-group metals ranging up to 11 grams per tonne (g/t) 3PE (platinum, palladium and rhodium) plus gold, as well as significant quantities of nickel and copper (see Chart 1, page 5). The 26-metre intersection will yield approximately 3,000 tonnes of ore, estimated to contain more than 400 ounces of platinum-group metals (PGMs).

"This is a significant milestone for Ivanplats and a tribute to the excellent work by the Platreef Project team and its South African sinking contractor, Aveng Mining," said Dr. Makhesha. "We now can proudly show our stakeholders and investors Flatreef's remarkably high-grade and thick, flat-lying orebody that is ideal for safe, underground, bulk-scale, mechanized mining.

"Our focus is to keep advancing the Platreef Project along its critical path. We remain true to our commitment to build Platreef into the world's next great platinum-group metals mine ─ a showcase for South Africa and the international investors that have financed the exploration and development work," Dr. Makhesha added.

Mr. Friedland noted that while some investors have expressed concern about the current price of platinum, Platreef also has massive quantities of palladium, nickel and copper, as well as rhodium and gold. He said the steady surge in the price of palladium could see it become more valuable than gold for the first time in 16 years, and rhodium prices are near eight-year highs.

The platinum-to-palladium ratio at the Platreef Mine is approximately 1:1. Palladium and rhodium are used as catalysts to control exhaust emissions in gasoline-fuelled vehicles, while diesel vehicles mostly use platinum. Platinum also is used as the catalyst in zero-emission, hydrogen-powered, fuel-cell electric vehicles now being developed by many of the leading, global automakers, such as Honda, Toyota, BMW, Mercedes-Benz and Hyundai.

"Building a new, large-scale mine such as Platreef is a capital- and time-intensive process that requires us to embrace the future, and the future we see will include a lot more electric vehicles using batteries and fuel cells," Mr. Friedland said.

"We are confident that platinum, copper and nickel will be among the biggest beneficiaries of the accelerating global transition to electric vehicles and clean energy.

"The Northern Limb is the future of platinum-group-metals mining. We will have the distinct advantage of having a highly-mechanized, underground mining operation with a small environmental footprint.

"On behalf of our stakeholders, international shareholders and progressive end users of our metals, we are pleased to be leading the positive transformation in the way future underground platinum mining operations in South Africa will be conducted," Mr. Friedland added.

In July 2017, Ivanhoe issued an independent, definitive feasibility study (DFS) for Platreef covering the first phase of production at an initial mining rate of four million tonnes per annum (Mtpa). The DFS estimated that Platreef's initial, average annual production rate will be 476,000 ounces of platinum, palladium, rhodium and gold, plus 21 million pounds of nickel and 13 million pounds of copper.

Photo 1: Members of the Platreef Project team and its South African sinking contractor, Aveng Mining, in Shaft 1 at the intersection of the Flatreef Deposit.Junior Mining Network

Photo 2: Gerick Mouton, Ivanplats' Vice President & Project Director (front right) and Jan Mapeka, Ivanplats' PhD-enrolled Geologist (front left) with a piece of high-grade Flatreef ore from the surface stockpile.Junior Mining Network

Photo 3: A sample from the first ore excavated from the Flatreef Deposit showing massive pentlandite (nickel sulphide) and chalcopyrite (copper sulphide) mineralization. Grades in the upper part of the T1 and T2 mineralized zones at Shaft 1 range up to 11 g/t 3PE (platinum, palladium and rhodium) plus gold, as well as significant nickel and copper.Junior Mining Network 

Photo 4: The distinct contact between the hanging wall norite-anorthosite (at top) and the upper part of the Flatreef mineralized T1 pyroxenite (at bottom) in the Shaft 1 intersection.Junior Mining Network

Flatreef is an estimated 26 metres thick at Shaft 1 intersection

Geotechnical drill hole GT008, drilled vertically below Shaft 1, indicates that the grade for the T1 mineralized zone at the Shaft 1 location is 4.83 g/t 3PE plus gold, 0.33% nickel and 0.15% copper over a vertical thickness of 12 metres (see Chart 1, page 5).

A well-developed chromitite stringer, marking the stratigraphic contact between the T1 and T2 mineralized zones, is expected to be intersected at a shaft depth of approximately 795 metres. This will be followed by the T2 mineralized zone, which grades 4.14 g/t 3PE+gold, 0.35% nickel and 0.18% copper over a vertical thickness of 11.26 metres (at a 2 g/t 3PE+gold grade cut-off).

Photo 5: Dr. Danie Grobler, Ivanplats Manager, Geology (left), Jan Mapeka, Ivanplats PhD-enrolled Geologist (centre), and Gerick Mouton, Ivanplats Vice President & Project Director (right), at current shaft bottom (785m) with the T1 mineralized reef surrounding the shaft wall and bottom. Junior Mining Network

Chart 1: Downhole plot of geotechnical drill hole GT008 (left) and the downhole plot of Shaft 1 intersection of the top of the Flatreef Deposit (right).Junior Mining Network

Completed 750-metre station on Shaft 1 will provide initial, underground access to the high-grade Flatreef orebody

The 750-metre station on Shaft 1 will provide initial, underground access to the high-grade orebody, enabling mine development to proceed during the construction of Shaft 2, which will become the mine's main production shaft. The mining zones in the current Platreef Mine plan occur at depths ranging from approximately 700 metres to 1,200 metres below surface.

Shaft 1's 750-metre station also will allow access for the first raise-bore shaft, which will have an internal diameter of six metres, to provide ventilation to the underground workings during the mine's ramp-up phase.

As shaft-sinking advances, two additional shaft stations will be developed at mine-working depths of 850 metres and 950 metres. Shaft 1 is expected to reach its projected, final depth of 980 metres below surface, complete with the stations, in early 2020.

The thick, flat-lying orebody at the Platreef Project is ideal for bulk-scale, mechanized mining. As underground development progresses, the mine plan calls for the addition of large, mechanized mining equipment, such as 14- and 17-tonne load-haul-dump machines and 50-tonne haul trucks to support the planned long-hole mining method.

Approximately 40% of Platreef's shaft-sinking team now is comprised of employees from local Mokopane communities who had no previous mining experience. New employees receive intensive, on-site training for underground mining and complete a workplace-safety induction program.

Construction progressing well at Shaft 2 surface box cut

Excavation of the Shaft 2 box cut to a depth of approximately 29 metres below surface is progressing well. Completion of the box cut will allow for the construction of the concrete hitch (foundation) for the 103-metre-tall concrete headgear (headframe) that will house the shaft's permanent hoisting facilities and support the shaft collar.

Shaft 2, to be located approximately 100 metres northeast of Shaft 1, will have an internal diameter of 10 metres, will be lined with concrete and sunk to a planned, final depth of 1,104 metres below surface. It will be equipped with two 40-tonne rock-hoisting skips with a capacity to hoist a total of six million tonnes of ore per year — the single largest hoisting capacity at any mine in Africa. Headgear for the permanent hoisting facility was designed by South Africa-based Murray & Roberts Cementation.

Platreef's development team has decided to unbundle the complete Shaft 2 sinking contract into smaller commitment portions, while still maintaining the critical development path.

Photo 6: Platreef's Shaft 2 box cut, with Shaft 1 headframe in the background.Junior Mining Network

Development focused on construction of a state-of-the-art underground mine

The Platreef Project is located on the Northern Limb of the Bushveld Complex, adjacent to Anglo Platinum's Mogalakwena Mine.

The Platreef Project, which contains the Flatreef Deposit, is a tier-one discovery by Ivanhoe Mines' geologists. Based on the findings of the July 2017 independent DFS, Ivanhoe plans to develop the Platreef Mine as a major underground mining operation in three phases to achieve: 1) An initial rate of four million tonnes per annum (Mtpa) to establish an operating platform to support future expansions; 2) a doubling of production to eight Mtpa; and 3) expansion to a steady-state 12 Mtpa.

As Phase 1 is being developed and commissioned, there would be opportunities to refine the timing and scope of subsequent phases of expanded production.

Given the size and potential of the Platreef Mineral Resource, Shaft 2 has been engineered with a crushing and hoisting capacity of six Mtpa. This allows for a relatively quick and
capital-efficient first expansion of the Platreef Project to six Mtpa by increasing underground development and commissioning of a third, two-Mtpa processing module and associated surface infrastructure as required.

A further expansion to more than eight Mtpa would entail converting Shaft 1 from a ventilation shaft into a hoisting/ventilation shaft. This would require additional ventilation exhaust raises, as well as a further increase of underground development, commissioning of a fourth, two-Mtpa processing module and associated surface infrastructure, as described in the PEA as Phase 2 of the project.

Photo 7: Lucas Malatji (left) and Zitha Ndwandwe, safety officers with contractor Aveng, at Shaft 1's 750-metre-level station. The station will provide initial, underground access to the high-grade orebody, enabling mine development to proceed during the construction of Shaft 2.Junior Mining Network

Photo 8: Platreef's underground mine development team includes three new members from local communities (from left): Nkone Madubana, Learner Sinker; Katlego Nkwana, Learner Sinker; and Caroline Dzivhani, Geologist.Junior Mining Network

Photo 9: Schematic of the planned Platreef Mine site, showing first-phase surface infrastructure and surrounding host communities.Junior Mining Network

Ivanhoe Mines indirectly owns 64% of the Platreef Project through its subsidiary, Ivanplats, and is directing all mine development work. The South African beneficiaries of the approved
broad-based, black economic empowerment structure have a 26% stake in the Platreef Project. The remaining 10% is owned by a Japanese consortium of ITOCHU Corporation, Japan Oil, Gas and Metals National Corporation and Japan Gas Corporation.

Qualified person

The scientific and technical information in this news release has been reviewed and approved by Stephen Torr, P.Geo., Ivanhoe Mines' Vice President, Project Geology and Evaluation, a Qualified Person under the terms of National Instrument (NI) 43-101. Mr. Torr is not independent of Ivanhoe Mines. Mr. Torr has verified the technical data disclosed in this news release.

Detailed information about assay methods and data verification measures used to support the scientific and technical information is set out in the Platreef 2017 Feasibility Study NI 43-101 Technical Report dated September 2017, available under Technical Reports at and on Ivanhoe Mines' SEDAR profile at

About Ivanhoe Mines

Ivanhoe Mines is a Canadian mining company focused on advancing its three principal projects in Southern Africa: the development of new mines at the Kamoa-Kakula copper discovery in the Democratic Republic of Congo (DRC) and the Platreef platinum-palladium-nickel-copper-gold discovery in South Africa; and the extensive redevelopment and upgrading of the historic Kipushi zinc-copper-germanium-silver mine, also in the DRC.

Information contacts

Bill Trenaman +1.604.331.9834

North America: Bob Williamson +1.604.512.4856
South Africa: Jeremy Michaels + 27.82.772.1122


Forward-looking statements

Certain statements in this news release constitute "forward-looking statements" or "forward-looking information" within the meaning of applicable securities laws. Such statements involve known and unknown risks, uncertainties and other factors, which may cause actual results, performance or achievements of the company, the Platreef Project, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Such statements can be identified by the use of words such as "may", "would", "could", "will", "intend", "expect", "believe", "plan", "anticipate", "estimate", "scheduled", "forecast", "predict" and other similar terminology, or state that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved. These statements reflect the company's current expectations regarding future events, performance and results, and speak only as of the date of this news release.

The forward-looking statements and forward-looking information in this news release include without limitation, (i) statements regarding the 26-metre intersection of the Flatreef Deposit at Shaft 1 will yield approximately 3,000 tonnes of ore, estimated to contain more than 400 ounces of platinum-group metals (PGMs); (ii) statements regarding Ivanhoe's commitment to build Platreef into the world's next great platinum-group metals mine; (iii) statements regarding the expectation that Shaft 1 will reach its projected, final depth of 980 metres below surface, complete with the stations, in 2020; and (iv) statements regarding Ivanhoe's plans to develop the Platreef Mine as a major underground mining operation in three phases to achieve: 1) An initial rate of four million tonnes per annum (Mtpa) to establish an operating platform to support future expansions; 2) a doubling of production to eight Mtpa; and 3) expansion to a steady-state 12 Mtpa.

In addition, all of the results of the Platreef DFS constitute forward-looking statements and forward-looking information. The forward-looking statements include metal price assumptions, cash flow forecasts, projected capital and operating costs, metal recoveries, mine life and production rates, and the financial results of the Platreef DFS. These include statements regarding the Platreef Project IRR of 14.2% after tax, the Platreef Project's NPV of US$916 million at an 8% discount rate after tax (as well as all other before and after taxation NPV calculations), estimated all-in cash costs (including the life-of-mine average estimate of US$351 per ounce of 3PE+Au net by-product credits and including sustaining capital costs), capital cost estimates (including
pre-production capital of US$1,544 million), proposed mining plans and methods, a mine life estimate of 32 years, a project payback period of 5.3 years, the expected number of people to be employed at the Project, and the availability and development of water and electricity for the Platreef Project.

Readers are cautioned that actual results may vary from those presented.

All such forward-looking information and statements are based on certain assumptions and analyses made by Ivanhoe Mines' management in light of their experience and perception of historical trends, current conditions and expected future developments, as well as other factors management believe are appropriate in the circumstances. These statements, however, are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking information or statements including, but not limited to, unexpected changes in laws, rules or regulations, or their enforcement by applicable authorities; the failure of parties to contracts to perform as agreed; social or labour unrest; changes in commodity prices; unexpected failure or inadequacy of infrastructure, industrial accidents or machinery failure (including of shaft sinking equipment), or delays in the development of infrastructure; and the failure of exploration programs or other studies to deliver anticipated results or results that would justify and support continued studies, development or operations. Other important factors that could cause actual results to differ from these forward-looking statements also include those described under the heading "Risk Factors" in the company's most recently filed MD&A, as well as in the most recent Annual Information Form filed by Ivanhoe Mines. Readers are cautioned not to place undue reliance on forward-looking information or statements. Certain of the factors and assumptions used to develop the forward-looking information and statements, and certain of the risks that could cause the actual results to differ materially are presented in the "Platreef 2017 Feasibility Study, September 2017" available on SEDAR at and on the Ivanhoe Mines website at

Although the forward-looking statements contained in this news release are based upon what management of the company believes are reasonable assumptions, the company cannot assure investors that actual results will be consistent with these forward-looking statements. These forward-looking statements are made as of the date of this news release and are expressly qualified in their entirety by this cautionary statement. Subject to applicable securities laws, the company does not assume any obligation to update or revise the forward-looking statements contained herein to reflect events or circumstances occurring after the date of this news release.


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