Earnings release
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ASX Release 30 July 2026 FOR FURTHER INFORMATION PLEASE CONTACT: Boss Energy Limited ABN 38 116 834 336 Level 1, 420 Hay Street, Subiaco Western Australia 600 Matthew Dusci - Managing Director/ CEO +61 (08) 6263 4494 ASX: BOE OTCQX: BQSSF www.bossenergy.com June 2026 Quarterly Report FY26 production and cost guidance achieved, cash and inventory increased Record production flow for the quarter underpins a strong finish to FY26, with continued Honeymoon plant and wellfield ramp -up. A ccelerated positive technical studies have brought forward the release of New Feasibility Study and updated JORC MRE, which support a LOM plan. Highlights FY26 Performance • Achieved revised FY26 production guidance with Q4 production of 362klbs U3O8 drummed (up 79% on a rain affected Q3) and FY26 production of 1,407klbs (up 61% on FY25). • FY26 C1 cost of $ 39/lb (US$26/lb), AISC of $ 61/lb (US$41/lb) and total capital expenditure of $65.9M all within revised guidance. • Q4FY26 cash and inventory increased by $11.6M and 51klbs respectively, contributing to a total increase in cash and inventory for FY26 of $13.1M and 172klbs respectively. • Average realised sale price of $ 107/lb (US$ 75/lb) for the quarter . Boss remains strategically under-contracted, maintaining leverage to a stronger uranium price environment with the average Term price increasing by 19% (US$15.50/lb) over the past 12 months. • Balance sheet remains strong with $207.3M in cash and liquid assets, supporting organic funding of ongoing transition to a wide-spaced wellfield design. Operations & Infrastructure • Key infrastructure of columns 4 & 5, East Kalkaroo Trunkline and Wellfield B6 commissioned. • Completed the accelerated delineation drilling program across all of Honeymoon which will serve to underpin a more robust MRE. • Increasing confidence in the wide -spaced wellfield design , with the New Feasibility Study accelerated and targeted for delivery by the end of August 2026 , alongside a program to accelerate wide-spaced wellfield development, which has already commenced. • Satellite deposits at Gould’s Dam and Jasons Deposit continue to be accelerated with activity to gain the relevant permitting and approvals underway. Corporate & Outlook • Peter Botten appointed as Non-Executive Director and Chair , effective 30 September 2026. Existing Chair Wyatt Buck remains as Non-Executive Director. • An Investor Day is being arranged for September 2026 to outline the Company's production ramp- up and long-term development strategy. • FY27 Guidance to be provided at the same time the New Feasibility Study is delivered.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 2 June Quarterly conference call will be held today, Thursday, 30 July 2026, at 9am AWST (11am AEST). To register and listen in live, please click on the link below: https://loghic.eventsair.com/515458/894154/Site/Register Boss Energy Limited (ASX: BOE; OTCQX: BQSSF) (“ Boss” or “the Company”) is pleased to report an encouraging quarter which culminated in the Company achieving its revised FY26 production and cost guidance and accelerating positive technical studies and other programs of work which are expected to support the future growth of the Honeymoon operation and provide a strong operational foundation coming into FY27. June Quarter & FY26 Performance Q4 FY26 Q3 FY26 FY26 Total FY26 Guidance2 Honeymoon Production Mlbs U3O8 0.36 0.20 1.41 1.4-1.45 Honeymoon C1 Cost1 A$/lb 45 60 39 36-40 Honeymoon AISC1 A$/lb 70 93 61 60-64 Sustaining capital A$M 7 5 24 30-33 Project and supporting infra. A$M 14 8 42 30-33 Total capital expenditure A$M 21 13 66 60-66 Alta Mesa Production (100%) Mlbs U3O8 0.045 0.097 0.491 n/a Sales Mlbs U3O8 0.325 0.325 1.4 n/a Realised Price1 US$/lb 75 74 74 n/a Cash and liquid assets A$M 207 211 207 n/a Notes: (1) AUD/USD Q4: 0.6869; Q3: 0.6845 (2) Updated Guidance, see announcement dated 28 January 2026 titled “Q2 December FY26 Quarterly Report” and announcement dated 15 April 2026 titled “ Honeymoon Update FY26 Production” for details. Boss CEO and Managing Director, Matthew Dusci, commented: “The June quarter represents a positive finish to FY26, with Boss delivering its revised production and cost guidance for the year . This performance is a credit to the Honeymoon team, whose focus and commitment enabled us to finish the year strongly. While the heavy rainfall in South Australia significantly disrupted site access and the delivery of essential reagents, the team's respon se demonstrated the resilience of our operation. “While FY26 has been a challenging year for Boss, I am confident in our pathway forward and I look forward to outlining this in detail to the market with the release of our New Feasibility Study which supports an updated Life-of-Mine Plan. We have established a strong operating platform with the processing infrastructure now in place, a proven processing flowsheet, six producing wellfields and a much stronger understanding of the deposit and the optimal wellfield design. This is reflected in the delivery of 1.41Mlbs of U₃O₈ drummed at a C1 cost of $39/lb and an AISC of $61/lb. The significant work programs completed, particularly since Boss committed to investigating the economic applicability of the wide-spaced wellfield design , are an endorsement of the technical capability and commitment of our team. I am excited for what this means for Honeymoon over the longer term. “The Company is in a strong financial position, with a balance sheet comprising $207 million in cash and liquid assets. Despite FY26 being a capital -intensive year, we increased our cash position by approximately $13 million and grew our drummed uranium inventory by 172 klbs through operating activities. This demonstrates the underlying strength of the Honeymoon operation and positions us to continue generating positive operating cash flow ensuring that Boss can organically fund the transition to the wide-spaced wellfield design.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 3 “We also accelerated the development pathway for our satellite deposits at Gould's Dam and Jasons Deposit, which host 33Mlbs and 12Mlbs of contained U₃O₈ respectively. Both deposits are considered to be amenable to wide-spaced ISR mining, placing the Company in a unique position to leverage the existing Honeymoon infrastructure, processing facilities and permitting pathway. This provides a low -capital, capital-efficient growth opportunity and a clear pathway to extend production over the longer term. “I am also pleased to welcome Peter Botten as incoming Chair to the Boss Energy Board, effective 30 September. Peter’s depth of experience in large -scale resource development is highly relevant as we advance the Honeymoon operation. I would also like to take th e opportunity to thank outgoing Chair, Wyatt Buck, for his instrumental contribution and leadership, and we are fortunate that he will continue to contribute to the Board as a Non-Executive Director. I look forward to working closely with Peter as we deliver the New Feasibility Study and continue to unlock the full potential of the Honeymoon operation.”
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 4 Honeymoon Safety Performance The Total Reportable Injury Frequency Rate (TRIFR1) increased during the quarter to 19.7, which included two Lost Time Injuries during the quarter. While this outcome is disappointing, the health and safety of our people remains a high priority. Management continues to maintain a strong focus on safety performance, including being a KPI for all team members. Table 1: Honeymoon TRIFR (12-month moving average) Quarter ended Q4 FY26 Q3 FY26 TRIFR 19.7 16.6 Honeymoon Production Results Production for Q4 FY26 was 362klbs U3O8 drummed (up 79%), against a rain affected prior quarter. The lift in production reflected increased flow of 3.5M cubic metres (up 83%). This represented record flow for a quarter, which was enabled by the ongoing commissioning of production infrastructure, including: • NIMCIX Columns 4 & 5 and associated pumping infrastructure. • East Kalkaroo trunkline. • The first Far East Kalkaroo production wellfield (B6) which is performing in line with expectations. These milestones continue to de -risk the production ramp-up, increasing our confidence in the ongoing performance of the Honeymoon operation and its amenability to the wide-spaced wellfield design. Table 2: Operational physicals Quarter ended Unit Q4 FY26 Q3 FY26 FY26 Wellfields online # 6 5 6 NIMCIX Columns online # 5 3 5 IX Flow (total) (m3) 3,542,193 1,939,494 10,106,084 PLS to IX tenor (U3O8 mg/l) 49 53 63 IX Recovery (%) 96.1 97.8 97.2 IX Production (total)1 (lbs) 371,198 220,952 1,374,182 U3O8 Drummed (total) (lbs) 362,152 202,781 1,406,634 The small decline in tenor followed expected wellfield tenor declines whilst wellfields remain online. This decline was accentuated by sub-optimal lixiviant chemistry in early-April 2026 due to rain-interruptions of reagent deliveries in March 2026. For Q1FY27, it is expected that average tenor will record a similar decline as was recorded from Q3FY26 to Q4FY26 with total flow to be consistent with Q4FY26. The IX Recovery declined by 1.7 percentage points during the quarter which was mainly attributed to commissioning of NIMCIX columns 4 and 5 as well as cycle time adjustments to counter reagent disruptions. Note that PLS to IX Recovery is primarily a measure of recovery efficiency rather than potential metal lost . That is, m ost of the uranium that does not get recovered over a given period is pumped in a closed circuit and recovered when it is flowed back through the NIMCIX columns. 1 Total Reportable Injury Frequency Rate (TRIFR) measures the rate of restricted work injuries (RWIs), medical treated injuries (MTI) and lost time injuries (LTIs) that occur per million hours worked.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 5 During the quarter, Boss commenced airlifting (injecting compressed air into a well) and role reversals (switching injector and extractor well roles) for some of the earlier wellfields that remain online. Results have been positive in increasing flow and grade and demonstrates the strong flow rates at Honeymoon which underpin the wide-spaced wellfield design. Honeymoon Costs Pleasingly, Boss has met its revised FY26 cost guidance. • C1 cost of $39/lb (US$26/lb) was at the upper end of the $36-40/lb (US$24-26/lb) guidance range, as previously advised. • AISC of $61/lb (US$41/lb) was at the lower end of the $60 -64/lb (US$40-42/lb) guidance range primarily due to an underspend on wellfields sustaining capital ($24M as compared to guidance of $30-33M) as Boss remained disciplined on wellfields capital while the New Feasibility Study was being developed. • Total capital expenditure of $66M was at the upper end of the $60 -66M range. Project and supporting infrastructure spend of $42M was above the guidance range of $30-33M primarily due to a greater than anticipated cost to complete the NIMCIX columns . With this project now substantially complete, Boss has materially improved its understanding of scope, cost and delivery requirements for NIMCIX Column 6. For the June quarter, Boss recorded a decrease in C1 cost and AISC from $60/lb and $93/lb in Q3FY26 to $45/lb (down 25%) and $70/lb (down 25%) respectively in Q 4FY26. In the main, the substantial fall in quarterly operating costs is due to the return to uninterrupted operations following the impacts of the significant rainfall during the March quarter. Table 3: Production and Capital Costs Key Metric Unit Q4 FY26 Q3 FY26 FY26 AUD USD AUD USD AUD USD C1 Cash Cost $/lb 45 31 60 41 39 26 All In Sustaining Cost (AISC) $/lb 70 48 93 64 61 41 Capital expenditure Sustaining $m 7 5 5 3 24 16 Project and Supporting Infrastructure $m 14 10 8 5 42 28 Total Capital Expenditure $m 21 15 13 9 66 44 Notes: (1) AUD/USD Q4: 0.6869 Q3: 0.6845. Sustaining capital spend for the quarter mainly reflected construction and first fill costs of B6, HMT1 and EKT1. Project and supporting infrastructure for the quarter mainly comprised the completion costs of NIMCIX columns 4 & 5 and the East Kalkaroo trunkline.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 6 Balance Sheet Boss has increased cash by $13.1M during FY26 whilst accumulating an additional 172klbs U3O8 drummed. This is a pleasing result during a year of transition and consistent with FY26 guidance of Boss being cashflow positive for the financial year. Boss finished the quarter in a strong financial position with no debt and $ 207M of liquid assets (being cash, liquid investments and physical U3O8 drummed), a decrease of $4M from Q3FY26. Key movements included: • Cash increased by $1 1.6M due mainly to an increase in cash receipts from uranium sales of $45.2M (including receipt of $11.1M receivable from a sale in the prior quarter) . Cash receipts were partially offset by operating costs of $15.2M, capital expenditure of $14.9M, and net other costs of $3.5M. Further detail is provided below. • Investments declined by $7.5M due to marked to market losses on listed investments. • Inventory on hand increased by $3.0M as an additional 51klbs U3O8 drummed was accumulated. • Trade receivable of $11.1M was received during the quarter. Table 4: Cash, inventory and investments Notes: (1) Inventory on hand reflects drummed U3O8 valued at the lower of cost and net realisable value. The waterfall chart below highlights the June quarter movements in cash. Figure 1: June Q4 FY26 Cash (A$000’s) A$000’s Q4FY26 Q3 FY26 QoQ ($) Cash on hand 49,671 38,024 11,647 Investments and other liquid assets 41,369 48,876 (7,507) Inventory on hand1 116,272 113,280 2,992 Trade receivable - 11,111 (11,111) Total cash and liquid assets 207,311 211,291 (3,979)
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 7 Sales, Loans and Inventory During the quarter, Boss recorded $34.8M (US$24.4M) of sales for 325klbs at an average realised price of $107.1/lb (US$75.1/lb). Boss now holds a total of 1,581klbs of inventory on hand which reflects accumulation of an additional 172klbs during FY26. Table 5: Sales, Loans and Inventory Key Metric Unit Q4 FY26 Q3 FY26 FY26 Sales and loan repayments US$000’s 24,421 23,906 111,541 Sales and loan repayments A$000’s 34,809 34,447 166,554 Sales lbs 325,000 325,000 1,400,000 Loan repayment lbs - - 100,000 Average realised price US$/lb 75.1 73.6 74.4 Average realised price A$/lb 107.1 106.0 111.0 Inventory on hand lbs 000’s 1,581 1,530 1,581 Boss expects to achieve an average realised sales price in Q1FY27 of circa US$80 -82/lb which includes sales of ~300klbs to two utilities under existing contracts. Boss is encouraged by the continued increase in the average Term price which has increased by 19% (US$15.50/lb) over the past 12 months and 4% (US$4/lb) over the past quarter. The increase in the average Term price is supporting the current Spot price which has seen limited activity over the past quarter given typical seasonal activity during the Northern Hemisphere summer. Honeymoon Construction Activities In FY26 Boss completed commissioning of key infrastructure including NIMCIX columns 4 & 5, the East Kalkaroo trunkline and wellfields B4, B5 and B6. With substantial investment in processing infrastructure now mostly complete, future capital spend will be mainly on wellfields which will have a more immediate return. The completion of this infrastructure also marks the substantial finalisation of a complex operating period with parallel operations and construction . There are many learnings and internal capability acquired during this period which could be applied to the development of its satellite deposits, subject to positive feasibility studies and capital approvals. The focus for the upcoming quarter will be accelerating the construction of future wellfields under the wide-spaced wellfield design. This acceleration follows a period of restraint , during which Boss has not initiated construction of any wellfields under the previous design since December 2025. It reflects management’s increasing confidence that the wide -spaced wellfield design represents the optimal pathway forward to support future production. The Company is also currently finalising a capital proposal to complete NIMCIX column 6 in conjunction with the completion of the updated JORC MRE and LOM plan.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 8 Figure 2: Wellfields Map (Honeymoon) Specific wellfield priorities for the quarter will be: • Completing construction of EKT1 : This was the first full wellfield trial under the wide -spaced wellfield design. It is expected to commence flushing in August 2026. This wellfield will have 16 five-spot patterns with an injector to extractor spacing of 60m and an injector-to-injector spacing of 85m. • Commencement of construction on EKT2: This wellfield will have 16 five-spot patterns with an injector to extractor spacing of 50m and an injector-to-injector spacing of 70m. From these trial wellfields in East Kalkaroo, Boss will further improve its understanding of flushing times, permeability, and leaching . Whilst wellfield B6 was designed based on an existing wellfield design (five-spot pattern with injector to extractor spacing of 30m and injector to injector spacing of 42m), it has provided meaningful data that continues to inform the New Feasibility Study. Drilling and Exploration Activities During the quarter, Boss completed a significant delineation drilling program at Honeymoon , aimed at enhancing the understanding and planning of future wellfields, while continuing to invest in production wells to support future production . Overall drilling activity complete d at Honeymoon during FY26 included: • Delineation drilling consisting of 50,645m rotary mud holes, 1,749m of aircore holes and 320m of core holes. • Production drilling consisting of 10,940m of production wells and 2,339m of monitor wells. The increased delineation drilling, alongside the expected MRE update will provide a greater level of certainty when planning future wellfields. Limited greenfield exploration activities were completed during the quarter as the focus remained on delineation and production well drilling.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 9 Growth Activities – Gould’s Dam and Jasons Deposits Boss has continued the acceleration of the development and permitting of its satellite deposits at Gould’s Dam and Jasons Deposit. The technical work completed as part of the Honeymoon New Feasibility Study is now being integrated into the evaluation and development of both satellite deposits. The Company's improved understanding of Honeymoon, together with its understanding of the wide-spaced wellfield design, is considered to be a key enabler for the future development of Gould's Dam and Jasons Deposit. This work has the potential to materially improve project economics through lower capital intensity, reduce wellfield development requirements and lower operating costs by leveraging the existing Honeymoon processing infrastructure and operating platform. Key activities completed in the quarter include: • Design of the pro posed trunkline connecting Jasons Deposit with the Honeymoon processing plant. • Progression of the ecological groundwater and radiological environmental baseline studies. • Preparation of the Jasons Deposit EPBC referral documentation. Key activities that are nearing completion include: • Ecological, groundwater and radiological baseline data collection, modelling and assessment. • Initial stakeholder engagement. • Initial impact assessments. The first of the FY27 resource delineation drilling programs will commence at Jasons Deposit in Q1FY27. This program consists of 100 rotary mud drill holes and 15 core drill holes for a total of 10,000m and 1,500m respectively. The drilling , on a spacing of 140m, is designed to convert currently unclassified mineralisation to Inferred with the aim of increasing the Mineral Resource and defining the extent of mineralisation for wellfield design and project description. New Feasibility Study: Wide-Spaced Wellfield Design Based on a significant volume of technical work completed to date, the Company continues to gain confidence that the wide-spaced wellfield design builds upon existing operational viability, but critically, has the potential to improve project economics as Boss steps out into the lower -grade areas of the resource. The substantial progress made across the Company's operational workstreams over the past six months has provided comprehensive additional information that builds on a large operational dataset gathered from current and existing operations thereby supporting a higher confidence outline for future operations at Honeymoon. On this basis, Boss has determined to proceed directly to a feasibility-level outcome rather than producing two study documents within a short period, as previously proposed. This decision enabled Boss to bring forward the targeted release of its New Feasibility Study and updated Life-of-Mine Plan for Honeymoon. The New Feasibility Study and updated Life -of-Mine Plan, accompanied by an updated JORC Mineral Resource Estimate for the Honeymoon deposit, is now targeted to be released at the end of August 2026, earlier than the original target date of the end of September 2026. Boss intends to hold an Investor Day in September 2026 whereby relevant management and technical team members will detail the work performed as results from the New Feasibility Study. The Investor Day will also set out the programs of work underway to bring Gould’s Dam and Jasons Deposit into production, including relevant studies and permitting work being undertaken. Any incremental capital requirements to support the revised life-of-mine plan are expected to be funded organically.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 10 Alta Mesa Joint Venture (Boss 30% / enCore Energy Corp 70%) Production during the quarter from the Alta Mesa operation, a joint venture with enCore Energy Corp (NASDAQ: EU; TSXV: EU) (enCore), totalled 45klbs U3O8 drummed compared to the previous quarter's production of 97klbs U3O8 drummed (on a 100% basis), a decrease of 52klbs. Boss received 13klbs U3O8 drummed reflecting its 30% pro rata share of shipped production, a 22klbs decrease from the prior quarter of 35klbs U3O8 drummed. The decline in production is attributed to permitting delays at the state level (Texas Commission on Environmental Quality ), resulting in production delays as new wellfields are not brought on in time to make up for production declines in existing wellfields. FY27 Guidance FY27 Guidance will be provided at the same time as the New Feasibility Study, at the end of August 2026. Corporate Boss recently announced the appointment of Mr Peter Botten as an Independent Non-Executive Director and Chair of the Company, effective 30 September 2026. Mr Botten is a highly respected business leader with more than 45 years of experience in the energy and resources sectors. He is best known for his leadership of Oil Search Limited, where he served as Managing Director and CEO for more than 25 years and le d the company through a period of significant growth, including the development of the PNG LNG Project, one of the largest resource developments in the Asia- Pacific region. Current Chair Mr Wyatt Buck will remain Chair of Boss Energy until the commencement of Mr Botten, after which he will transition to the role of Independent Non-Executive Director. Boss also announced the retirement Ms Jan Honeyman as Independent Non-Executive Director, effective 30 June 2026. Ms Honeyman ha d served on the Board for four years, including as Chair of the Human Resources Committee. During her tenure, she has made significant contributions to the development of the Company’s remuneration framework, as well as providing guidance on talent acquisition and people management. Appendix 5B Disclosures In line with its obligations under ASX Listing Rule 5.3.5, Boss notes that the only payments to related parties of the Company, as disclosed in the Appendix 5B (Quarterly Cashflow Report) for the quarter ended 30 June 2026, consist of executive director and chief financial officer salaries and wages (including superannuation) and payment of non-executive director fees. During the quarter ended 30 June 2026, the Company spent approximately $ 24.6M on project and exploration activities relating to its Honeymoon and Alta Mesa Projects. These activities included: • Technical studies costs • Construction equipment • Wellfield drilling and development costs • Engineering and construction expenses • Mineral exploration and evaluation costs In addition to these activities the Company continued to incur costs relating to the ongoing maintenance activities required at Honeymoon. The expenditure represents direct costs associated with these activities as well as capitalised wages which can be directly attributable to Honeymoon.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 11 This ASX announcement was approved and authorised by the Board of Boss Energy Limited. For further information, contact: Matt Dusci Managing Director and Chief Executive Officer P: +61 (8) 6263 4494 E: boss@bossenergy.com
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 12 Forward-Looking Statements This announcement contains certain forward -looking statements provided by or on behalf of Boss with respect to potential future matters. Forward -looking information may include, without limitation, statements regarding plans, strategies and objectives of Boss, production and financial guidance, financial forecasts, estimates of project milestones and timing and expected costs or production outputs. In some cases, forward-looking information can be identified by terms such as “may”, “will”, “should”, “expect ”, “plan”, “anticipate”, “believe”, “intend”, “estimate”, “predict”, “potential”, “continue” or other similar expressions concerning matters that are not historical facts. Guidance as to production, unit costs and capital expenditure is based on assumptions, budgets and estimates existing at the time of assessment which may change over time impacting the accuracy of those estimates. These estimates are developed in the context of an uncertain operating environment including in respect of inflationary macroeconomic conditions, and uncertainties surrounding the risks associated with mining and the further review of the EFS which may impact production and have a flow on effect on sales. Actual results may therefore vary significantly depending on these risks and the timing required to address them. All information is provided as an indicative guide to assist sophisticated investors with modelling of the Company. It should not be relied upon as a predictor of future performance. Forward-looking statements reflect Boss’s expectations at the date of this announcement, however they are not guarantees or predictions of future performance or statements of fact. Forward -looking information involves known and unknown risks, uncertainties and other factors (many of which are beyond the control of Boss and its directors and m anagement) which may cause the actual results, performance or achievements of Boss and its business to be materially different from any future results, performance or achievements expressed or implied by the forward -looking information. Accordingly, undue reliance should not be placed on forward-looking information. The forward-looking statements in this announcement reflect various assumptions by or on behalf of Boss (which assumptions may prove to be inaccurate). Accordingly, this is another reason why such statements are subject to significant business, technical, legal, economic and competitive and other uncertainties and contingencies and other factors which may be beyond the control of Boss which could cause actual results or trends to differ materially from the forward -looking statements in this announcement, in cluding but not limited to differences or inaccuracies arising from price and currency fluctuations, geotechnical factors, geological and mining factors, estimated continuity of mineralised horizons, metallurgical and processing factors, sales factors, drilling and production results, development progress, operating results, mineral resource estimates, legal issues, legislative, fiscal and regulatory developments, economic and financial market conditions in various countries, approvals and cost estimates, environmental risks, ability to meet funding requirements, share price volatility, uranium markets and other matters. Accordingly, there can be no assurance that such forward-looking statements and projections will be realised. Boss makes no representations as to the accuracy or completeness of any forward-looking statements or projections or that any forecasts will be achieved. Additionally Boss makes no representation or warranty, express or implied, in relation to, and (to the maximum extent permitted by law) no responsibility or liability (whether for negligence, under statute or otherwise) is or will be accepted by Boss or by any of its officers, directors, shareholders, partners, employees, or advisers as to or in relation t o the accuracy or completeness of the information, statements, opinions or matters (express or implied) arising out of, contained in or derived from this announcement or any omission from this announcement. Boss does not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in Boss’s expectations or any change in events, conditions or circumstances on which any such statement is based, except as required by law. Mineral Resource estimates are necessarily imprecise and depend on interpretations and geological assumptions, minerals prices, cost assumptions and statistical inferences (and assumptions concerning other factors, including mining, processing, metallurgic al, infrastructure, economic, marketing, legal, environmental, social and governmental factors) which may ultimately prove to be incorrect or unreliable.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 13 Mineral Resource estimates are regularly revised based on actual exploration or production experience or new information and could therefore be subject to change. In addition, there are risks associated with such estimates, including (among other risks) that minerals mined may be of a different grade or tonnage from those in the estimates and the ability to economically extract and process the minerals may become compromised or not eventuate. Accordingly, this is another reason why no assurances can be give n of whether the production guidance, financial forecasts or other forecasts or other forward -looking statements or information in this announcement will be achieved. Effect of Rounding A number of figures, amounts, percentages and estimates in this announcement are subject to the effect of rounding. Accordingly, the actual calculation of these figures may differ from the figures set out in this announcement. Past Performance Past performance information, including past share price performance of Boss and past Honeymoon Project information, given in this announcement is given for illustrative purposes only and should not be relied upon as (and is not) an indication of Boss’s (o r anyone else’s) views on Boss’s future activities, guidance or financial performance or condition. Past performance of Boss cannot be relied upon as an indicator of (and provides no guidance as to) the future performance of Boss.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 14 Appendix One: Schedule of Mining Tenements The following information is provided pursuant to Listing Rule 5.3.3 for the quarter ended 30 June 2026. Tenement Name Location Licence Number Interest Yarramba South Australia EL6510 100% South Eagle South Australia EL6081 100% Gould’s Dam South Australia EL6512 100% Katchiwilleroo South Australia EL6511 100% Ethiudna South Australia EL6020 100% Gould’s Dam South Australia RL83-85 100% Honeymoon Mine South Australia ML6109 100% Prairie Dam South Australia EL6962 75% Chalker Dam South Australia EL6963 75% Oakvale South Australia EL6964 75% Gairloch South Australia EL6965 75% Venus Bay South Australia EL6992 100% Darke Peak South Australia EL7013 100% Rudall South Australia EL6999 100% There were no mining tenement acquisitions or divestments during the quarter.
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 15 Appendix Two: Results table (Unaudited) Key Metric Unit Q4FY26 Q3FY26 Q2 FY26 Q1 FY26 FY26 Production Wellfields online # 6 5 4 4 6 NIMCIX Columns online # 5 3 3 3 5 IX Flow (total) (m3) 3,542,193 1,939,494 2,458,050 2,166,348 10,106,084 PLS to IX tenor (U3O8 mg/l) 49 53 77 81 63 IX Recovery (%) 96.1 97.8 97.5 97.8 97.2 IX Production (total) (lbs) 371,198 220,952 406,006 376,025 1,374,182 U3O8 Drummed (total) (lbs) 362,152 202,781 455,791 385,910 1,406,634 Honeymoon TRIFR TRIFR 19.7 16.6 19.6 20.7 19.7 Sales Sales and loan repayments US$000’s 24,421 23,906 25,886 37,329 111,541 Sales and loan repayments A$000’s 34,809 34,447 39,876 57,422 166,554 Sales lbs 325,000 325,000 350,000 400,000 1,400,000 Loan repayment lbs - - - 100,000 100,000 Average realised price US$/lb 75.1 73.6 74.0 74.7 74.4 Average realised price A$/lb 107.1 106.0 113.9 114.8 111.0 Inventory (Drummed U3O8) Opening lbs 000’s 1,530 1,615 1,440 1,409 1,409 Honeymoon production lbs 000’s 362 203 456 386 1,407 Alta Mesa receipts lbs 000’s 13 35 68 45 161 Sales lbs 000’s (325) (325) (350) (400) (1,400) Loan repayments lbs 000’s - - - - - Other lbs 000’s 1 2 - - 3 Closing lbs 000’s 1,581 1,530 1,615 1,440 1,581 Costs C1 A$/lb 45 60 30 34 39 AISC A$/lb 70 93 49 50 61 Sustaining Capital A$M’s 7 5 6 6 24 Wellfields & Supporting A$M’s 14 8 11 9 42 Total Capex A$M’s 21 13 17 15 66
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ASX: BOE OTCQX: BQSSF www.bossenergy.com Page 16 Key Metric Unit Q4FY26 Q3FY26 Q2 FY26 Q1 FY26 FY26 Cash and liquid investments Cash on hand A$000’s 49,671 38,024 52,857 47,767 49,671 Investments & liquid assets A$000’s 41,369 48,876 44,912 53,700 41,369 Inventory on hand A$000’s 116,272 113,280 110,236 105,839 116,272 Trade receivable A$000’s - - - - - Loan receivable A$000’s - 11,111 - 5,112 0 Total cash and liquid assets A$000’s 207,311 211,291 208,005 212,418 207,311 Cashflow Opening balance A$000’s 38,024 52,857 47,767 36,531 36,531 Receipts from customers A$000’s 45,200 23,237 44,374 36,539 149,350 enCore loan repayment A$000’s - - - 15,482 15,482 Operating costs A$000’s (15,186) (18,594) (16,302) (12,390) (62,472) Wellfields capex A$000’s (6,934) (4,643) (6,109) (6,330) (24,016) Honeymoon capital project A$000’s (7,986) (10,423) (5,455) (9,459) (33,323) Alta Mesa costs A$000’s 42 (1,257) (4,542) (3,542) (9,299) G&A A$000’s (2,915) (2,758) (3,743) (5,260) (14,676) Exploration & investments A$000’s (856) (776) (3,751) (4,218) (9,599) Other A$000’s 283 380 618 414 1,693 Closing Cash A$000’s 49,671 38,024 52,857 47,767 49,671