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Ivanhoe Mines announces Phase 3 concentrator at Kamoa- Kakula Copper Complex has achieved commercial production

Production Results Mine Development & Operations

119920202 v1

August 19, 2024

Ivanhoe Mines announces Phase 3 concentrator at Kamoa-

Kakula Copper Complex has achieved commercial production

■

Kamoa-Kakula reports a record 35,941 tonnes of copper

produced in July

■

Phase 3 increases annual copper production capacity to over

600,000 tonnes, making Kamoa-Kakula the third-largest copper

mining complex globally

KOLWEZI, DEMOCRATIC REPUBLIC OF THE CONGO – Ivanhoe Mines (TSX: IVN;

OTCQX: IVPAF) Executive Co-Chairman Robert Friedland and President Marna

Cloete announced today that the Phase 3 concentrator at Kamoa-Kakula Copper

Complex in the Democratic Republic of the Congo (DRC) has reached commercial

production. In addition, Kamoa-Kakula’s Phase 1, 2 and 3 concentrators achieved

a combined monthly production record of 35,941 tonnes of copper in July.

Mr. Friedland commented: "Kamoa-Kakula's operations team continues to

achieve a very rare feat in our industry... delivering world-scale copper

development projects ahead of schedule, while also advancing smoothly through

to commercial production at an impressive rate. Kamoa-Kakula's record-setting

production in July marks the onset of rapid copper growth over the second half

of 2024, with Phase 3 on track to increase annualized production capacity from

approximately 450,000 tonnes to over 600,000 tonnes.

"We are also pursuing avenues to maximize copper production from Kamoa-

Kakula's current operating footprint, with recoveries anticipated to increase via

our 'Project 95' program, and overall throughput to also increase through the

near-term debottlenecking of the Phase 3 concentrator. We expect Ivanhoe's

aggressive copper growth story to continue as we advance planning on Kamoa-

Kakula's Phase 4 expansion, while exploration continues to impress on our

adjacent Western Foreland licenses."

Kamoa-Kakula’s Phase 3 concentrator was completed ahead of schedule on May

28, 2024, with copper concentrate production commencing on June 10, 2024. The

Phase 3 concentrator subsequently achieved commercial production. This

accelerated ramp-up schedule was primarily due to experience gained from the

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ramp-up of the Phase 1 and 2 concentrators that also achieved commercial

production over a similar period of time.

The Phase 3 concentrator is consistently milling at the nameplate processing rate

of 5 million tonnes of ore per annum. Milling has also exceeded nameplate

capacity on multiple occasions over 24 hours by as much as 19%.

Commissioning of the fine-grinding mills is the final stage of ramp-up required to

achieve steady state production, increasing recovery from approximately 80% to

the nameplate target of 86%. The fine-grinding mills, manufactured by Metso

Corporation of Helsinki, Finland, are currently undergoing installation with

commissioning expected to commence from the end of August.

Following the “Project 95” basic engineering work that was recently completed

on the Phase 1 and 2 concentrators, Kamoa Copper’s engineering team will soon

commence study work targeting an increase in the Phase 3 concentrator’s

recovery rate to over 90%, as well as a further increase in processing capacity.

Since first production, the Phase 3 concentrator has produced over 11,000 tonnes

of copper in concentrate. The first sale of copper concentrate produced by the

Phase 3 concentrator took place in July, with all concentrate produced so far toll

smelted at the nearby Lualaba Copper Smelter (LCS) in Kolwezi. To date, over

33,000 wet metric tonnes of copper concentrate have been delivered to LCS. In

the fourth quarter, prior to the heat-up of the on-site copper smelter at Kamoa-

Kakula in early 2025, a portion of the Phase 3 copper concentrate will be

stockpiled on-site with the remainder delivered to LCS.

On a stand-alone basis, the Phase 3 concentrator is expected to produce

approximately 150,000 tonnes of copper per annum. In addition to the Phase 1

and 2 concentrators, total copper production capacity at Kamoa-Kakula is

expected to be over 600,000 tonnes per annum, making it the third largest copper

mining operation globally.

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Stockpiles of Phase 3 copper concentrate inside the concentrate storage

warehouse. Concentrate is transported in bulk to the nearby Lualaba

copper smelter in Kolwezi for smelting to 99.7% copper blister.

Aerial view of Kamoa-Kakula’s copper smelter construction site

(foreground) and Phase 1 and 2 concentrators (background). The smelter

project is over 86% complete and on-schedule for construction completion

by year-end. Once complete, it will be the largest copper smelter in Africa.

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Figure 1. 2022 Scope 1, 2 & 3 copper greenhouse gas (GHG) emissions

intensity curve, highlighting Kamoa-Kakula and the top 10 largest copper

mining operations. Following the completion and ramp-up of the on-site

smelter, the GHG emissions intensity is expected to almost halve.

Notes: Kamoa-Kakula and industry peer Scope 1, 2 and 3 GHG emissions data are estimates by Skarn

Associates. Estimates include emissions to produce refined LME-grade copper, from ore to refinery gate.

The emissions estimates for Scope 3 include Category 9, downstream transportation and distribution, and

Category 10, processing of sold products. The horizontal width of each bar represents each operation’s

2022 copper production. In 2022, Kamoa-Kakula produced 333,497 tonnes of copper, emitting an

estimated 791,939 equivalent tonnes of CO2, thereby producing 2.42 equivalent tonnes of CO2 per tonne

of copper produced. In 2026, Kamoa-Kakula is estimated to produce 632,000 tonnes of copper, emitting

an estimated 830,894 equivalent tonnes of CO2, thereby producing 1.31 equivalent tonnes of CO2 per

tonne of copper produced. Chart sources: Skarn Associates, WSP Group, Ivanhoe Mines

Qualified Persons

Disclosures of a scientific or technical nature at the Kamoa-Kakula Copper

Complex in this news release have been reviewed and approved by Steve Amos,

who is considered, by virtue of his education, experience, and professional

association, a Qualified Person under the terms of NI 43-101. Mr. Amos is not

considered independent under NI 43-101 as he is Ivanhoe Mines’ Executive Vice

President, Projects. Mr. Amos has verified the technical data disclosed in this

news release.

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Ivanhoe has prepared an independent, NI 43-101-compliant technical report for

the Kamoa-Kakula Copper Complex, which is available on the company’s website

and under the company’s SEDAR+ profile at www.sedarplus.ca:

• Kamoa-Kakula Integrated Development Plan 2023 Technical Report dated

March 6, 2023, prepared by OreWin Pty Ltd.; China Nerin Engineering Co.

Ltd.; DRA Global; Epoch Resources; Golder Associates Africa; Metso

Outotec Oyj; Paterson and Cooke; SRK Consulting Ltd.; and The MSA

Group.

The technical report includes relevant information regarding the assumptions,

parameters, and methods of the mineral resource estimates on the Kamoa-Kakula

Copper Complex cited in this news release, as well as information regarding data

verification, exploration procedures, and other matters relevant to the scientific

and technical disclosure contained in this news release.

About Ivanhoe Mines

Ivanhoe Mines is a Canadian mining company focused on advancing its three

principal projects in Southern Africa; the expansion of the Kamoa-Kakula Copper

Complex in the DRC, the construction of the tier-one Platreef palladium-nickel-

platinum-rhodium-copper-gold project in South Africa; and the restart of

production at the ultra-high-grade Kipushi zinc-copper-germanium-silver mine,

also in the DRC.

Ivanhoe Mines also is exploring across circa 1,808 km2 of highly prospective, 60-

100% owned exploration licences in the Western Forelands, located adjacent to

the Kamoa-Kakula Copper Complex in the DRC. Ivanhoe is exploring for new

sedimentary copper discoveries, as well as expanding and further defining its

high-grade Makoko, Kiala, and Kitoko copper discoveries as the company’s next

major development projects.

Information contact

Follow Robert Friedland (@robert_ivanhoe) and Ivanhoe Mines (@IvanhoeMines_)

on X.

Investors

Vancouver: Matthew Keevil +1.604.558.1034

London: Tommy Horton +44 7866 913 207

Media

Tanya Todd +1.604.331.9834

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Website: www.ivanhoemines.com

Forward-looking statements

Certain statements in this release constitute “forward- looking statements” or “forward- looking

information” within the meaning of applicable securities laws. Such statements and information

involve known and unknown risks, uncertainties , and other factors that may cause the actual

results, performance, or achievements of the Company, its projects, 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 using words

such as “may”, “would”, “could”, “will”, “intend”, “expect”, “believe”, “plan”, “anticipate”, “estimate”,

“scheduled”, “forecast”, “predict” and other similar terminology, or state that certain acti ons,

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 release.

Such statements include without limitation : (i) statements that Phase 3 will increase annualized

production capacity from approximately 450,000 tonnes to over 600,000 tonnes ; (ii) statements

that recovery rates from the Phase 1 and 2 concentrators are expected to increase via the 'Project

95' program and that overall throughput is also expected to increase through the near -term

debottlenecking of the Phase 3 concentrator ; (iii) statements that commissioning of the fine -

grinding mills is the final stage of ramp- up required to achieve steady state production of the

Phase 3 concentrator and that commissioning is expected to commence from the end of August

2024; (iv) statements that Kamoa Copper’s engineering team will soon commence study work

targeting a further increase in the Phase 3 concentrator’s nameplate recovery rate from 86% to

over 90%; (v) statements that before the heat-up of the on-site copper smelter at Kamoa-Kakula,

all copper concentrate produced by the Phase 3 concentrator will continue to be smelted at LCS,

and that in the fourth quarter, a portion of the Phase 3 copper concentrate will start to be stockpiled

on-site in anticipation for the smelter heat -up, which is expected in early 2025; (vi) statements

that the Phase 3 concentrator is expected to produce approximately 150,000 tonnes of copper

per annum, and (v) statements t hat total copper production capacity following the completion of

the Phase 3 expansion at Kamoa-Kakula is expected to be over 600,000 tonnes per annum,

making it the third largest copper mining operation globally.

Furthermore, concerning this specific forward- looking information concerning the operation and

development of the Kamoa- Kakula Copper Complex, the company has based its assumptions

and analysis on certain factors that are inherently uncertain. Uncertainties include: (i) the

adequacy of infrastructure; (ii) geological characteristics; (iii) metallurgical characteristics of the

mineralization; (iv) the ability to develop adequate processing capacity; (v) the price of copper;

(vi) the availability of equipment and facilities necessary to complete development and

exploration; (vii) the cost of consumables and mining and processing equipment; (viii) unforeseen

technological and engineering problems; (ix) accidents or acts of sabotage or terrorism; (x)

currency fluctuations; (xi) changes in regulations; (xii) the compliance by joint venture partners

with terms of agreements; (xiii) the availability and productivity of skilled labour; (xiv) the regulation

of the mining industry by various governmental agencies; (xv) the ability to raise sufficient capital

to develop such projects; (xvi) changes in project scope or design; (xvii) recoveries, mining rates

and grade; (xviii) political factors; (xviii) water inflow into the mine and its potential effect on mining

operations, and (xix) the consistency and availability of electric power.

Forward-looking statements and information involve significant risks and uncertainties, should not

be read as guarantees of future performance or results , and will not necessarily be accurate

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indicators of whether such results will be achieved. Many factors could cause actual results to

differ materially from the results discussed in the forward- looking statements or information,

including, however not limited to, the factors discussed above and under the “Risk Factors” and

elsewhere in the company’s MD&A for the three and six months ended June 30, 2024 and in its

current annual information form, as well as unexpected changes in laws, rules or regulations, or

their enforcement by applicable authorities; the failure of parties to contracts with the company to

perform as agreed; social or labour unrest; changes in commodity prices; and the failure of

exploration programs or studies to deliver anticipated results or results that would justify and

support continued exploration, studies, development or operations.

Although the forward- looking statements contained in this 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 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 release.

The company’s actual results could differ materially from those anticipated in these forward -

looking statements as a result of the factors outlined in the “Risk Factors” section in the company’s

MD&A for the three and six months ended June 30, 2024 and its current annual information form.