Kipushi debottlenecking program completed ahead of schedule and under budget
August 27, 2025
Kipushi debottlenecking program completed ahead of
schedule and under budget
■
Kipushi concentrator throughput rate increased by 20%,
setting new production records
■
Record 1,052 tonnes of zinc produced in 24 hours,
equivalent to an annualized rate of over 340,000 tonnes
■
Off-take agreement signed with Mercuria for up to one-third
of high-grade zinc production
JOHANNESBURG, SOUTH AFRICA – Ivanhoe Mines’ (TSX: IVN; OTCQX:
IVPAF) Executive Co-Chair Robert Friedland and President and Chief
Executive Officer Marna Cloete announced today that the debottlenecking
program at the ultra-high-grade Kipushi Zinc Mine, in the Democratic Republic
of Congo, was recently completed both ahead of schedule and under budget.
Zinc production from the Kipushi concentrator has significantly improved
following the completion of the debottlenecking program, setting multiple new
production records.
Engineering work on the debottlenecking program commenced in September
2024 with the aim of boosting the concentrator throughput rate by 20% from
800,000 to 960,000 tonnes of ore per annum. Construction works were
complete in early August, following a second and final concentrator shutdown
to commission the newly installed equipment.
Concurrent with the integrations of the debottlenecking program, the August
shutdown also included additional upgrades to the dense media separation
(DMS) circuit to improve equipment availability. As reported on October 7,
2024, excessive fine material (fines) in the ore feed was causing blockages in
the DMS circuit, leading to frequent unscheduled shutdowns. Following the
completion of the upgrades during the recent shutdown, the DMS circuit
availability has increased notably from approximately 70% to 96%, boosting
concentrator recoveries to over 90%.
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Multiple concentrator records have been achieved since the completion of the
debottlenecking program, due to both improved concentrator throughput rates
and DMS availability. In the seven days following the early August shutdown, a
record of 5,545 tonnes of zinc in concentrate was produced, equivalent to an
annual production rate of approximately 290,000 tonnes of zinc. Sustaining
this run rate would make the Kipushi Mine the world’s fourth-largest zinc
mining operation. In addition, a record 1,052 tonnes of zinc in concentrate was
produced over 24 hours in mid-August, equivalent to an annual production
rate of over 340,000 tonnes of zinc, after accounting for availability.
Further back-up electrical upgrades continue with the installation of an
additional six megawatts in backup generator capacity, which is expected to
be commissioned and available in the fourth quarter. It is anticipated that the
back-up capacity will be used to support operations during times of grid
instability.
Following the completion of the aforementioned initiatives, it is expected that
the rate of zinc production during the remainder of the year will significantly
increase, therefore Kipushi’s 2025 production guidance remains unchanged at
between 180,000 and 240,000 tonnes of zinc.
In addition to delivering the debottlenecking program ahead of schedule and
under budget, the Kipushi project team has done so with an industry-leading
safety record. Throughout construction of the Kipushi concentrator, which
started in September 2022 and was completed in June 2024, as well as the
recently completed debottlenecking program, the project team at Kipushi did
not record a single lost time injury (LTI). This is an outstanding and incredibly
rare industry achievement.
In July 2025, a three-year offtake agreement was signed with independent
energy and commodity group, Mercuria of Geneva, Switzerland. The
agreement is for up to one-third of the remaining unallocated offtake of
Kipushi’s high-grade zinc concentrate. Off-take agreements for the other
approximately two-thirds of Kipushi’s zinc concentrate production are already
in place with CITIC Metal (HK) Limited of Hong Kong and Trafigura Asia
Trading of Singapore, as announced on July 2, 2024. In addition to the recently
signed off-take agreement, Mercuria has provided a loan facility of $20 million
to Kipushi Corporation over the term of the off-take contract, at a rate of
interest SOFR, plus 6%.
3
Run of mine (ROM) stockpiles at the Kipushi concentrator. The Kipushi
concentrator produced a record 1,052 tonnes of zinc in concentrate over
24 hours in mid-August 2025 following the ahead-of-schedule
completion of the debottlenecking program .
Kipushi’s projects team is undergoing the electrical installation for the
six MW of the new back-up generation capacity, which were recently
delivered to site.
4
Crispin Mutombo, Kipushi’s Weighbridge Officer, weighing a truck of
Kipushi high-grade zinc concentrate prior to export. Each bag contains
two tonnes of concentrate. In August, the Kipushi concentrator set a
new record, producing 2,058 tonnes of zinc concentrate in 24 hours.
Disclosure of technical information
Disclosures of a scientific or technical nature 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.
About Ivanhoe Mines
Ivanhoe Mines is a Canadian mining company focused on advancing its three
principal projects in Southern Africa; the Kamoa-Kakula Copper Complex in
the DRC, the ultra-high-grade Kipushi zinc-copper-germanium-silver mine,
also in the DRC; and the tier-one Platreef platinum-palladium-nickel-rhodium-
gold-copper Mine in South Africa, which is set to start production in Q4 2025.
Ivanhoe Mines is exploring for copper in its highly prospective, 54-100%
owned exploration licences in the Western Forelands, covering an area over
six times larger than the adjacent Kamoa-Kakula Copper Complex, including
the high-grade discoveries in the Makoko District. Ivanhoe is also exploring for
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new sedimentary copper discoveries in new horizons including Angola,
Kazakhstan, and Zambia.
Follow Robert Friedland (@robert_ivanhoe) and Ivanhoe Mines
(@IvanhoeMines_) on X.
Information contact
Investors
Vancouver: Matthew Keevil +1.604.558.1034
London: Tommy Horton +44 7866 913 207
Media
Tanya Todd +1.604.331.9834
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 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 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.
Such statements include, without limitation: (i) statements that the recently
completed debottlenecking program aims to boost the concentrator throughput rate
by 20% from 800,000 to 960,000 tonnes of ore per annum; (ii) statements that six
megawatts of additional backup generator capacity is expected to be commissioned
and available in the fourth quarter, supporting operations during times of grid
instability; iii) statements that following the completion of the debottlenecking
program a significant increase in zinc production is expected throughout the
remainder of 2025; and, iv) statements that Mercuria have offtake rights for up to
one-third of zinc concentrate production over a three year period.
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 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, but not limited to: (i)
uncertainty around the rate of water ingress into underground workings; (ii) the
ability, and speed with which, additional equipment can be secured; (iii) the
continuation of seismic activity; (iv) the state of underground infrastructure; (v)
uncertainty around when future underground access can be secured; (vi) future mine
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stability cannot be guaranteed; and (vii) future mining methods, may differ the impact
on Kakula operations. Additionally, the factors discussed above and under the “Risk
Factors” section in the company’s MD&A for the three and six months ended June
30, 2025, and its current annual information form, and elsewhere in this news
release, as well as unexpected changes in laws, rules or regulations, or their
enforcement by applicable authorities; changes in the rate of water ingress into
underground workings; the continuation of seismic activity; the state of underground
infrastructure; delays in securing underground access; changes to the mining
methods required in the future; 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 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.
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, 2025,
and its current annual information form.