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Perseus Mining Announces 5-YEAR GOLD Production Outlook

Production Results

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PERSEUSMINING.COM

PERSEUS MINING ANNOUNCES 5-YEAR GOLD PRODUCTION

OUTLOOK

Perth, Western Australia/ June 11, 2 025/ Perseus Mining Limited (ASX/TSX: PRU) (Company) is pleased to provide

its gold production and All-In Site Cost (AISC) outlook for the five -year period from FY26 to FY30 inclusive for its

portfolio of mines located in Ghana, Côte d’Ivoire and Tanzania.

The Five-year Operating Outlook incorporates the updated planning outlook for each of Perseus’s three existing

operations based on planning assumptions reflecting current operating conditions. It also takes into account Final

Investment Decisions (FID) for the CMA underground mining operation at the Yaouré Gold Mine in Côte d’Ivoire (see

ASX announcement “Perseus Mining takes Final Investment Decision on CMA underground project at Yaouré ” dated

28 January 2025), as well as the development of the Nyanzaga Gold Project (NGP) in Tanzania (see ASX announcement

“Perseus Mining proceeds with development of the Nyanzaga Gold Project ” dated 28 April 2025).

HIGHLIGHTS

• Perseus expects to recover at total of 2.6Moz – 2.7Moz of gold with average gold production from the four

operating mines of approximately 515koz – 535koz per annum in the five-year period to the end of FY30.

• The weighted average AISC over the five-year period is forecast to be US$1,400/oz – US$1,500/oz with not

more than ±10% change year-on-year over the period, emphasising the benefit of our portfolio approach to

asset management.

• Total development capital of ~US$878M that has been allocated to the operating assets during the period to

achieve this production outlook is excluded from the AISC estimate.

• At a long-term gold price of US$2,400/oz, Perseus’s cash operating margin is expected to consistently exceed

US$500/oz at all mines over the five-year period. In some cases, it is significantly higher.

• The five-year outlook is underpinned by a high level of geological and technical confidence with 93% of the

gold ounces in the mine plan comprising existing Ore Reserves with the remaining 7% from Measured or

Indicated Mineral Resources. Inferred Mineral Resources and other upside projections of mineralisation were

specifically omitted from Perseus’s five-year outlook.

• The five-year outlook reinforces Perseus’s commitment to the three core components of its capital allocation

policy, namely : maintenance of a resilient balance sh eet, delivery of strong, consistent operational

performance and careful deployment of discretionary capital for growth and capital returns to shareholders.

Perseus’s CEO and Managing Director, Jeff Quartermaine said:

“In FY22, Perseus’s gold production reached approximately 500,000 ounces for the first time and set in train our

ambition to maintain or exceed this level of production on a consistent basis going forward.

Perseus’s decision in 2023 to defer development of its Meyas Sand Gold Project in Sudan and pivot towards acquisition

and development of the Nyanzaga Gold Project , will lead to a short term shortfall in 2026 and 2027 relative to this

target. From the five-year outlook published today, it is clear that this is a temporary setback and that Perseus’s

strategy of consistently producing between 500,000 to 600,0000 ounces of gold per year at a cash margin o f not less

than US$500 per ounce, is eminently achievable.

With cash and undrawn debt capacity currently exceeding US$1.1 billion, Perseus is fully funded to not only deliver

the five-year outlook as presented today but also consider a prudent mix of future growth opportunities beyond the

current plan, as well as generous returns to shareholders”.

11 June 2025

NEWS RELEASE

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Group Outlook

Perseus’s five-year outlook delivers on the Company’s strategy of building a sustainable, geopolitically diversified ,

African-focused gold business of three to four operating mines that produce between 500 koz to 600koz of gold per

annum at a cash margin of not less than US$500/oz.

As part of its annual planning cycle , the Company has reassess ed the growth opportunities available within its

portfolio with the approach of optimising the portfolio rather than focussing on fixed investment targets for each

asset. In this way, the Company has sought to find the balance between investment in growth opportunities and the

cash margin generated by the business.

Average gold production for the group over the five-year period is 515koz – 535koz per annum for a total of 2.6Moz

– 2.7Moz with Yaour é contributing 34%, Edikan contributing 28% and Sissingué contributing 10%. Based on the

current schedule, the recently committed NGP in Tanzania is anticipated to provide 28% of the metal production for

the portfolio over the next 5 years.

The Company’s weighted average AISC over the five -year outlook is estimated at US$1,400/oz - US$1,500/oz. AISC

rises slightly in the first two years, driven by lower production base . In FY28, the integration of lower -margin ore

sources into the mine plan contributes to a slight increase in AISC. The portfolio's diverse production base allows AISC

to remain within ±10% of the five-year average on a year-to-year basis.

Figure 1 Perseus Group five-year gold production and AISC cost outlook

The Company has strong confidence in its ability to deliver on this five-year outlook, which is underpinned by a mine

plan with high geological and technical certainty, with 93% of the production ounces forming part of the existing Ore

Reserves with the remaining 7% from Measured or Indicated Mineral Resources (as detailed in ASX announcement

“Perseus Mining updates Mineral Resources and Ore Reserves ” dated 21 August 2024). Nyanzaga Ore Reserves are

detailed in ASX announcement “Perseus Proceeds with Development of Nyanzaga Gold Project” dated 28 April 2025.

The Company will provide an update to the Mineral Resource and Ore Reserve statement in August 2025, in line with

its annual disclosure.

Incremental production included in the mine plan at Yaouré, Edikan and Sissingué comes from well -understood

deposits with a proven operating history. This production does not require significant additional infrastructure or

capital beyond the investment necessary to access the mineralisation.

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Table 1 Five-year production outlook, AISC and development capital forecast

ASSET TOTAL PRODUCTION

5-YEAR OUTLOOK

AISC

5-YEAR RANGE1

TOTAL DEVELOPMENT CAPITAL

5-YEAR

Yaouré 870koz – 905koz $1,480/oz - $1,580/oz US$170M2

Nyanzaga 725koz – 750koz $1,230/oz - $1,330/oz US$523M3

Edikan 720koz – 750koz $1,450/oz - $1,550/oz US$180M4

Sissingué 265koz – 275koz $1,580/oz - $1,680/oz US$5M

TOTAL 2,580koz – 2,680koz $1,400/oz - $1,500/oz US$878M

1) AISC includes sustaining capital but excludes development capital

2) Yaouré Development capital relates to capitalised underground development and includes US$21M forecast to be incurred to 30 June 25

3) Includes development and pre-production capital cost incurred post-FID up to first gold pour. In addition it includes US$38M forecast to be incurred to 30 June 25

4) Development capital relates to capitalised waste stripping costs at Esuajah North and Fetish deposits and development capital for ESS Underground

Table 2 Portfolio key production indicators by year

Key Production

Indicators Units FY26 FY27 FY28 FY29 FY30 5-year totals

Open Pit

Ore Mined – Open pit Mt 11.7 12.2 14.8 17.1 10.5 66.2

Ore Grade Mined –

Open pit g/t 1.10 1.06 1.18 1.25 1.41 1.20

Total Mined – Open pit Mt 52.9 103.0 102.6 87.1 63.4 409.1

Strip Ratio t:t 3.54 7.43 5.93 4.10 5.05 5.18

Underground

Ore tonnes -

Underground Mt 0.2 0.6 1.0 2.1 2.0 5.8

Ore Grade Mined –

Underground g/t 3.51 3.36 3.13 1.27 1.48 1.94

Total Tonnes Mined -

Underground Mt 0.5 0.9 1.5 2.6 2.1 7.6

Milling

Ore Milled Mt 12.7 14.5 16.5 15.8 12.8 72.3

Ore Grade Milled g/t 1.18 1.10 1.26 1.37 1.42 1.27

Recovery % 85% - 90% 85% - 90% 85% - 90% 85% - 90% 85% - 90% 85% - 90%

Gold Produced koz 420-440 450-470 590-610 610-630 510-530 2,580-2,680

Capital Allocation

Perseus is in a strong financial position, with a resilient balance sheet and an operational portfolio that continue s to

safely and efficiently generate reliable operational cash flow. Th is allows the Company to look to deploy operating

cashflow to shareholders and other stakeholders in the business. Figure 2 summarises Perseus’s capital allocation

priorities.

Figure 2 Perseus capital allocation priorities

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The five-year outlook is the result of a systematic process to assess and prioritise internal growth opportunities to

ensure the portfolio continues to deliver strong operating margins over the long term. The deployment of capital

within the business complements existing capital management strategies, including a share buyback programme and

the payment of dividends.

While Perseus continues to consider inorganic growth opportunities, these are required to compete rigorously for

discretionary investment and be assessed in the context of overall business risk and delivery of value. By allocating

discretionary capital to internal organic growth, Perseus can invest in jurisdictions where it has an established

operating presence, on known geological terranes, and with a proven workforce capable of safely and efficiently

delivering value.

Yaouré Gold Mine

The five-year forecast for Yaouré includes mining of the recently started Yaouré open pit and CMA underground as

the primary ore sources. Supplementing the primary ore sources, material is also sourced from Zain, CMA Southwest

and long-term stockpiles to maximise mill capacity.

Figure 3 Yaouré Gold Mine – Percentage five-year metal production by source

Yaouré will continue to be a cornerstone asset in Perseus’s portfolio, total gold production of 870koz – 905koz and a

weighted average AISC of $1,480/oz - $1,580/oz over the five -year outlook . While FY26 sees a reduction in gold

produced compared to previous years , the change in production volume was anticipated and is a result of a

combination of factors including change in ore characteristics and material sources (as detailed in the ASX

announcement “Perseus extends life of the Yaouré Gold Mine to 2035” dated 18 September 2023).

Table 33 Yaouré key production indicators, five-year outlook

KEY PRODUCTION INDICATORS UNITS FY26 FY27 FY28 FY29 FY30 TOTAL 5-YEAR

OUTLOOK

Open Pit

Ore Mined – Open pit Mt 4.3 2.8 3.7 5.7 2.6 19.2

Ore Grade Mined – Open pit g/t 1.06 1.08 0.98 0.99 1.14 1.04

Total Mined – Open pit Mt 26.1 28.6 30.5 27.9 12.2 125.2

Strip Ratio t:t 5.02 9.15 7.17 3.90 3.70 5.53

Underground

Ore tonnes - Underground Mt 0.2 0.6 0.8 0.8 0.8 3.2

Ore Grade Mined –

Underground

g/t

3.51 3.36 3.43 3.33 3.80 3.49

Total Tonnes Mined -

Underground

Mt

0.5

0.9

1.1

0.9

0.8 4.1

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KEY PRODUCTION INDICATORS UNITS FY26 FY27 FY28 FY29 FY30 TOTAL 5-YEAR

OUTLOOK

Milling

Ore Milled Mt 3.7 3.8 3.6 3.4 3.4 17.9

Ore Grade Milled g/t 1.66 1.43 1.69 1.89 1.85 1.70

Following FID o n the CMA underground operation in January 2025, the project is due to cut the first of four

underground portals in Q1 FY26. The expansion to include underground operations allows further exploitation of the

CMA deposit, which has proven to be a reliable and well understood geological domain of the Yaouré operation to

date. At steady state production, it is planned that underground ore will represent approximately 20% of the tonnes

of ore mined on the site from both open cut and underground operations.

Since approving FID, Perseus has worked with its mining contractor to further develop the mine schedule ahead of

commencement of underground operations in Q1 FY26. This milestone is aligned to the project schedule detailed in

ASX announcement “Perseus Mining takes final investment decision on CMA Underground Project at Yaour é” dated

28 January 2025. As of this update , changes to the underground schedule have resulted in the development capital

allocated for the CMA underground increasing by 36% from the app roved US$124.6M to US$170M. Development

capital for CMA Underground has increased due to bringing forward underground development into the pre -

commercial production period and updated capitalisation methodology to include royalties and G&A previously

expensed.

Further optimisation of the Yaour é life of mine plan is scheduled as several on-lease targets are assessed as part of

the regular mine planning process.

Nyanzaga Gold Mine

Nyanzaga is forecast to be the lowest cost operation in the Perseus ’s portfolio. Gold production totals 725koz –

750koz, with peak metal output in FY28 over the five-year outlook . The weighted average AISC ranges between

US$1,230/oz - US$1,330/oz. Nyanzaga’s increasing contribution to Perseus’s portfolio underscores the decision to

acquire and proceed with project development.

During the five-year period, all of the Nyanzaga’s Kilimani pit is mined providing initial ore supply to the mill with the

remainder of the material sourced from the main Nyanzaga deposit. All material mined is part of the stated Ore

Reserve (see ASX announcement “Perseus Mining proceeds with development of the Nyanzaga Gold Project ” dated

28 April 2025).

Total gold production over Nyanzaga’s current 11-year life of mine, Phase 1 mine production is currently estimated

to be 2.01 Moz based on a JORC 2012 Probable Ore Reserve of 52.0 Mt @ 1.40 g/t gold for 2.3 Moz. The development

capital cost for the plant and site infrastructure is estimated at US$472M inclusive of US$49M of contingency, and

pre-production capital of US$51M, giving a total capital cost to first gold pour of US$523M.

Table 44 Nyanzaga key production indicators – five-year outlook

KEY PRODUCTION INDICATORS UNITS FY26 FY27 FY28 FY29 FY30

TOTAL 5

YEAR

OUTLOOK

Open Pit

Ore Mined – Open pit Mt - 1.8 6.3 6.2 6.2 20.5

Ore Grade Mined – Open pit g/t - 1.02 1.37 1.39 1.25 1.31

Total Mined – Open pit Mt 1.0 31.1 47.2 47.2 48.9 175.4

Strip Ratio t:t - 16.74 6.51 6.56 6.84 7.55

Milling

Ore Milled Mt - 1.8 6.1 5.7 5.6 19.1

Ore Grade Milled g/t - 1.02 1.40 1.47 1.32 1.37

As previously advised, Perseus has committed to completing a second round of infill drilling at Nyanzaga, involving a

number of drilling programmes aimed at confirming the tenor of the current mineralisation and testing extensions

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of the known mineralisation. Results received to date have been compelling and Perseus is expected to update the

Mineral Resource and Ore Reserves (MROR) in Q1 FY27, in line with our annual MROR update.

Edikan

Edikan’s updated five-year outlook combines mining from the existing Nkosuo deposit and the commencement of a

cutback of the Esuajah North pit, along with the second phase of mining at the Fetish pit, following completion of

mining of the first phase in April 2025. Total gold production over this period is expected to be 720koz – 750koz, with

a weighted average AISC of around US$1,450/oz – US$1,550/oz per ounce.

Figure 4 Edikan Gold Mine – Percentage five-year metal production by source

Both Fetish and Esuajah North cutbacks have been incorporated into the updated five-year plan, reflecting the

opportunity to extend Edikan’s mine life at an incremental AISC. Together, the Fetish and Esuajah North cutbacks

attract capitalised waste stripping costs of $168M but contribute ~200koz of production to Edikan’s mine life and

diversify the ore availability in the plan.

Table 55 Edikan key production indicators - five-year outlook

KEY PRODUCTION INDICATORS UNITS FY26 FY27 FY28 FY29 FY30

TOTAL 5

YEAR

OUTLOOK

Open Pit

Ore Mined – Open pit Mt 5.7 6.4 4.3 4.5 1.4 22.4

Ore Grade Mined – Open pit g/t 0.90 0.90 0.92 1.24 2.44 1.07

Total Mined – Open pit Mt 15.6 34.2 16.9 8.0 1.8 76.6

Strip Ratio t:t 1.73 4.36 2.95 0.78 0.23 2.43

Underground

Ore tonnes - Underground Mt - - 0.2 1.3 1.2 2.7

Ore Grade Mined –

Underground

g/t

- - 1.68

1.82 2.08 1.93

Total Tonnes Mined -

Underground

Mt

-

-

0.5

1.7

1.3 3.5

Milling

Ore Milled Mt 7.4 7.5 5.4 5.8 3.5 29.7

Ore Grade Milled g/t 0.81 0.84 0.79 0.93 1.14 0.88

In addition to these open -pit sources, Perseus is progressing an updated Feasibility Study for the Esuajah South

underground deposit, with a view to bringing this project into production later in the decade. If approved through to

development, Esuajah South would become the company’s second underground mine and its first such operation in

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Ghana. The combination of Fetish, Esuajah North, and Esuajah South underground has extended the life of mine

plane out to FY32.

Perseus remains committed to brownfields exploration on its existing mining leases and exploration licences at

Edikan to support ongoing production growth and to extend the Edikan production pipeline over the longer term.

Sissingué

Sissingué’s updated five-year outlook involves the continuation of mining at Sissingué Stage 4 open pit and

commencement of new mining areas at Bagoé and Airport West (included in Sissingué in Figure 5) in FY26, as well as

a Sissingué Stage 5 open pit cutback in FY27. This plan extends Sissingué’s mine life to FY30, producing a total 265koz

– 275koz of gold at a weighted average AISC of US$1,580/oz – US$1,680/oz over this period.

Figure 5 Sissingué Gold Mine – Percentage five-year metal production by source

Following an assessment of growth opportunities on site, additional mining inventory was included in the life of mine

plan from the Sissingué Stage 5 pit. The addition of the expanded pit in the five-year outlook extends the mine life

by approximately 12 months out to FY30, providing a meaningful contribution to Sissingué’s production profile from

existing mining areas. As part of this assessment other growth options were considered but were not included in the

plan, as they require further technical assessment to confirm their economic feasibility.

Table 66 Sissingué key production indicators – five-year outlook

KEY PRODUCTION INDICATORS UNITS FY26 FY27 FY28 FY29 FY30

TOTAL 5

YEAR

OUTLOOK

Open Pit

Ore Mined – Open pit Mt 1.6 1.3 0.5 0.6 0.2 4.2

Ore Grade Mined – Open pit g/t 1.94 1.86 2.39 2.18 2.34 2.03

Total Mined – Open pit Mt 10.2 9.1 8.0 4.0 0.6 31.9

Strip Ratio t:t 5.40 6.22 14.86 5.43 1.77 6.60

Milling

Ore Milled Mt 1.6 1.5 1.4 1.0 0.3 5.7

Ore Grade Milled g/t 1.83 1.67 1.35 1.68 1.86 1.65

Infill drilling is included in Sissingué’s FY26 budget to confirm the mineralisation and design parameters for the

Sissingué Stage 5 pit along with further geotechnical and grade control programmes at Bagoé and Airport West that

are intended to further reduce operational risk.

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This market announcement was authorised for release by Perseus’s

Managing Director and CEO, Jeff Quartermaine.

COMPETENT PERSON STATEMENT

All production targets referred to in this release are underpinned by estimated Ore Reserves and Measured or Indicated Mineral Resources which have

been prepared by competent persons in accordance with the requirements of the JORC Code.

Edikan

The information in this report that relates to the Mineral Resources and Ore Reserve at Edikan was updated by the Company in a market

announcement “Perseus Mining updates Mineral Resources and Ore Reserves” released on 21 August 2024. The Company confirms that all material

assumptions underpinning those estimates and the production targets, or the forecast financial information derived therefrom, in that market

release continue to apply and have not materially changed. The Company further confirms that material assumptions underpinning the estimates

of Ore Reserves described in “Technical Report — Edikan Gold Mine, Ghana” dated 7 April 2022 continue to apply.

Sissingué, Fimbiasso and Bagoé

The information in this report that relates to the Mineral Resources and Ore Reserve at the Sissingué Gold Mine including Fimbiasso and Bagoé was

updated by the Company in a market announcement “Perseus Mining updates Mineral Resources and Ore Reserves” released on 21 August 2024. The

Company confirms that all material assumptions underpinning those estimates and the production targets, or the forecast financial information derived

therefrom, in that market release continue to apply and have not materially changed. The Company further confirms that material assumptions

underpinning the estimates of Ore Reserves described in “Technical Report — Sissingué Gold Project, Côte d’Ivoire” dated 29 May 2015 continue to

apply.

Yaouré

The information in this report that relates to the Mineral Resources and Ore Reserve at Yaouré was updated by the Company in a market announcement

“Perseus Mining announces Open Pit and Underground Ore Reserve update at Yaouré” released on 21 August 2024. The Company confirms that all

material assumptions underpinning those estimates and the production targets, or the forecast financial information derived therefrom, in that market

release continue to apply and have not materially changed. The Company further confirms that material assumptions underpinning the estimates of

Ore Reserves described in “Technical Report — Yaouré Gold Project, Côte d’Ivoire” dated 19 December 2023 continue to apply.

Nyanzaga

The information in this report that relates to the Mineral Resources and Ore Reserve at Nyanzaga was updated by the Company i n a market

announcement “Perseus Mining proceeds with development of the Nyanzaga Gold Project” released on 28 April 2025. The Company confirms that

all material assumptions underpinning those estimates and the production targets, or the forecast financial information derived therefrom, in that

market release continue to apply and have not materially changed. The Company fur ther confirms that material assumptions underpinning the

estimates of Ore Reserves described in “Technical Report — Nyanzaga Gold Project” dated 10 June 2025 continue to apply.

CAUTION REGARDING FORWARD LOOKING INFORMATION:

This report contains forward-looking information which is based on the assumptions, estimates, analysis and opinions of management made in light of

its experience and its perception of trends, current conditions and expected developments, as well as other factors that management of the Company

believes to be relevant and reasonable in the circumstances at the date that such statements are made, but which may prove to be incorrect.

Assumptions have been made by the Company regarding, among other things: the price of gold, continuing commercial production at the Yaouré Gold

Mine, the Edikan Gold Mine and the Sissingué Gold Mine without any major disruption, development of a mine at Nyanzaga, the receipt of required

governmental approvals, the accuracy of capital and operating cost estimates, the ability of the Company to operate in a safe, efficient and effective

manner and the ability of the Company to obtain financing as and when required and on reasonable terms. Readers are cautioned that the foregoing

list is not exhaustive of all factors and assumptions which may have been used by the Company. Although management believes that the assumptions

made by the Company and the expectations represented by such information are reasonable, there can be no assurance that the forward-looking

information will prove to be accurate. Forward-looking information involves known and unknown risks, uncertainties, and other factors which may

cause the actual results, performance or achievements of the Company to be materially different from any anticipated future results, performance or

achievements expressed or implied by such forward-looking information. Such factors include, among others, the actual market price of gold, the actual

results of current exploration, the actual results of future exploration, changes in project parameters as plans continue to be evaluated, as well as those

factors disclosed in the Company's publicly filed documents. Readers should not place undue reliance on forward-looking information. Perseus does not

undertake to update any forward-looking information, except in accordance with applicable securities laws.