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 of 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”.

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 500koz 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 reassessed 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 Yaouré 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.

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.

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

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

Capital Allocation

Perseus is in a strong financial position, with a resilient balance sheet and an operational portfolio that continues to safely and efficiently generate reliable operational cash flow. This 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

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

Following FID on 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 Yaouré” 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 approved 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 Yaouré 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

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 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

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 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

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.

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 in 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 further 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.