Boss Energy Limited · ASX:BOE

Boss Energy — Technical Presentation (March 2025)

23 slides from Boss Energy's technical presentation, Mar 26, 2025

  1. Slide 1: Boss Energy Honeymoon Analyst Site Visit Presentation

    ASX Release 26 March 2025 Boss Energy Honeymoon Analyst Site Visit Presentation Boss Energy Limited (ASX: BOE; OTCQX: BQSSF) advises that today, on 26 March 2025, it is hosting a site visit for 14 equity research analysts at the Honeymoon Uranium mine, South Australia. The following presentation wil

  2. Slide 2: A global multi-mine Uranium producer

    A global multi-mine Uranium producer First mover advantage in a rising Uranium market Honeymoon Analyst Site Visit 26 March 2025 ASX: BOE | OTCQX: BQSSF bossenergy.com

  3. Slide 3: Site Visit: Production Results (3Q25)

    Honeymoon Site Visit 1 Production Results (3Q25) Boss Energy | Honeymoon Analyst Site Visit 2

  4. Slide 4: Production Results

    Production Results Honeymoon March Quarterly Production1 lbs 350,000 • Strong expected quarter on quarter growth in IX production and U3O8 300,000 drummed Forecast production • Remain on track to deliver 850k lbs U3O8 drummed for FY25 250,000 Forecast production • U3O8 drummed exceeded IX production

  5. Slide 5: Site Visit: Wellfields

    Honeymoon Site Visit 2 Wellfields Boss Energy | Honeymoon Analyst Site Visit 4

  6. Slide 6: Wellfields

    Honeymoon Wellfields Gould’s Dam 25 Mlbs 510ppm Jasons Jason’s Goulds 11 Mlbs Dam 790 ppm ~13km Honeymoon 36 Mlbs 660 ppm Boss Energy | Honeymoon Analyst Site Visit 5

  7. Slide 7: Current Wellfield Configuration

    Honeymoon Current Wellfield Configuration Brooks Dam Honeymoon East Kalkaroo Boss Energy | Honeymoon Analyst Site Visit 6

  8. Slide 8: Wellfield Development

    Honeymoon Wellfield Development Steps Key Activity Description Indicative Timeframe Resource Resource delineation drilling is completed on typical spacing of 40m x 40m. Key for Typical drilling rates are 1 Delineation resource delineation drilling is the use of the BMR and PFN probe ~300m/day Wellfi

  9. Slide 9: Wellfield Resource Delineation

    Honeymoon Wellfield Resource Delineation Down Hole Probes Prompt Fission Neutron (PFN) Direct measurement of Uranium (235U) Total Porosity (mobile and bound fluid) Borehole Magnetic Resonance (BMR) Primary lithological tool Useful at picking lithological boundaries Induction Identifies sulphides Res

  10. Slide 10: Wellfield Development

    Honeymoon Wellfield Development Honeymoon Lower Domain – Wellfields Design Boss Energy | Honeymoon Analyst Site Visit 9

  11. Slide 11: Wellfield Key Assumptions

    Honeymoon Wellfield Key Assumptions Key Consideration Description Assumed from EFS of 70% overall recovery of U3O8 equivalent from 1 Overall Recovery all wellfields - B1 and B2 performing as expected Forecast production rate is based on the % recovery per PVE from a wellfield. The EFS assumes a 70%

  12. Slide 12: Wellfield Opportunities

    Honeymoon Wellfield Opportunities Opportunity Description Outcome Currently in construction of V2.0 wellhouse design (incl. VSDs) as a modular Capital and operational cost 1 Modular Wellhouse unit fabricated offsite. Potential to adopt improvements ‘modular construction model’ Use of ferric sulphate

  13. Slide 13: Wellfield Resource Delineation

    Honeymoon Wellfield Resource Delineation Scheduled Date for Wellfields Current Status Production B1 & B2 Currently in production In production Available for production (flushing B3 4QFY25 completed) Currently refurbishing wellhouse with poly and trunk line installation B4 scheduled to commence short

  14. Slide 14: Site Visit: Process Plant

    Honeymoon Site Visit 3 Process Plant Boss Energy | Honeymoon Analyst Site Visit 13

  15. Slide 15: Key Stages of Processing

    Honeymoon Key Stages of Processing Wellfield Insitu Leach Ion Exchange & Precipitation Precipitation Drying Drying&&Calcination Calcination Packing Drumming & Packing Logistics Logistics Stripping Filtered groundwater Precipitation of The Yellowcake is U3O8 is placed The containers are with acid (su

  16. Slide 16: Technical Improvements since Uranium One

    Technical Improvements since Uranium One Boss Energy Key Area Uranium One Proven Outcomes Improvements Low Fe High Fe (2g/l) Lixiviant Stability Improved leaching efficiency pH - 2 pH – 1.4 Large Bleed Treatment Groundwater pre-treatment Cost effective Ca/Cl removal Seeing the Operating Cost Enables

  17. Slide 17: Processing - Recovery

    Honeymoon Processing - Recovery EFS Actual IX Adsorption and Elution Columns – A Train Process Area Commentary (assumed) (average) • Resin loading higher than EFS life-of-mine assumption at an average of 35g/l compared to 26.7-27.3g/l – resin performing at higher head grades • Recovery achieved as p

  18. Slide 18: Key Milestones

    Honeymoon Key Milestones Wellfield B3 (Mar 25*) Column 2 (Sep 25) Commenced PLS feed to IX Column 2 production from Wellfield B3 Installation of Columns 4 to 6 Column 1 & Kiln 1 (Jul 25) Column 5 & 6 Column 3 (Jan 25) (Apr 24) (2QFY26*) PLS feed to IX Column 3 Commissioned and PLS feed to IX Column

  19. Slide 19: Site Visit: Operating Costs

    Honeymoon Site Visit 4 Operating Costs Boss Energy | Honeymoon Analyst Site Visit 18

  20. Slide 20: C1 Costs

    C1 Costs Honeymoon C1 Cost Breakdown (2H25)1 Reagent Proportion Sourced Use 5% 3% Sodium Carbonate 31% Adelaide Water Treatment, Ion Exchange 17% Hydrogen Peroxide 16% Sydney Wellfield Lixiviant, Precipitation 27% Sodium Hydroxide 16% Adelaide Water Treatment, Precipitation 1% Ferric Sulphate 13% Ad

  21. Slide 21: Resource Tables

    Honeymoon Resource Tables HONEYMOON JORC EXPLORATION TARGETS AND MINERAL RESOURCE The information in this Presentation relating to the Enhanced Feasibility Study (EFS) is extracted from the announcement entitled ‘Updated Feasibility Study identifies lower costs and increased financial returns’ dated

  22. Slide 22: Disclaimer and Important Notices

    Disclaimer and Important Notices IMPORTANT: You must read the following before continuing. The Company advises that the EFS uses a portion of Inferred Resources in the first 3 years (less than 1%), in the first 5 years(5%) and over the 11-year life of mine(19%). The Company confirms that the use of

  23. Slide 23: Boss Energy Limited Honeymoon Analyst Site Visit Presentation

    Boss Energy Limited Honeymoon Analyst Site Visit Presentation Keep in touch +61 (8) 6263 4494 boss@bossenergy.com ASX: BOE | OTCQX: BQSSF

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