Wallbridge Mining Completes Updated Positive Preliminary Economic Assessment of Fenelon Gold Project
  wallbridgemining.com
  March 27, 2025
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  Toronto, Ontario – March 27, 2025 – Wallbridge Mining Company Limited (TSX:WM, OTCQB:WLBMF) (“Wallbridge” or the “Company”) is pleased to report results from an updated positive Preliminary Economic Assessment (“PEA”) completed on its 100%-owned Fenelon gold project (“Fenelon” or the “Project”)  located in the Abitibi Greenstone Belt, along the Detour-Fenelon Gold  Trend, Quebec. A PEA prepared in accordance with National Instrument  43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) has been filed on SEDAR+ and is available on the Company’s website and can be accessed  here.
  All results herein are reported in Canadian dollars unless otherwise indicated.
  PEA HIGHLIGHTS
 
 - Average annual gold production of 107,000 oz per year over 16-year life of mine (“LOM”); 96% average gold recovery
 - Average annual gold production of 127,000 oz during the first five years
 - Average annual free cash flow of $120 million over LOM
 - After-tax Internal Rate of Return (“IRR”) of 21%
 - After-tax Net Present Value (“NPV”) of $706 million at base case gold price of US$2,200 and CAD$:US$ of 1.35:1.00 at a 5% discount rate
 - Initial capital expenditures (1) of $579 million
 - Sustaining capital expenditures (1) of $449 million
 - Total cash costs (1) of US$851/oz
 - All-in sustaining costs(1) (“AISC”) of US$1,046/oz
 - 16.6 Mt of mineralized material mined at an average grade of 3.34 g/t
  1.  Non-IFRS financial measures with no standardized definition under IFRS.  Refer to Non-IFRS Measures at end of this news release.
  The  Company cautions that the results of the PEA are preliminary in nature  and include inferred mineral resources that are considered too  speculative geologically to have economic considerations applied to them  to be classified as mineral reserves. There is no certainty that the  results of the PEA will be realized.
  Brian Penny, CEO of Wallbridge, commented:
  “Fenelon  is a gold project with tremendous potential. This updated Fenelon PEA  generates strong project economics under a lower risk, higher grade,  lower startup capital scenario. Fenelon has now reached another  milestone with a robust PEA that demonstrates a viable path to  development and attractive economic returns based on reasonable  assumptions. The PEA was designed to be rigorous, using current cost  data from contractors, suppliers and mining companies operating in the  region to arrive at realistic projections. It represents a new starting  point to build upon as we scope out the full opportunities at Fenelon  and Martiniere, the two most advanced projects on our large,  underexplored property.
  In this historically high gold  price environment, we need to rapidly advance the project. The current  plan has a shorter payback than the previous plan and allows us to  consider expansion options after payback has been achieved.
  I  would like to thank everyone who contributed to the completion of this  study, as well as our employees, stakeholders, and shareholders for  their continuous support. I believe Wallbridge has a bright future, and  we look forward to taking the necessary steps to increase value for our  shareholders.”
  Table 1: PEA Summary of Key Metrics and Project Economics
    
 
 - Total  cash costs per ounce are operating costs, composed of mining (UG and  OP), processing, water treatment and tailings, minesite G&A and  royalty costs, divided by payable gold ounces.
 - AISC/oz includes  operating costs, sustaining capital expenditures to support the on-going  operations, and closure costs, divided by payable gold ounces.
 - Non-IFRS financial measures with no standardized definition under IFRS. Refer to note at end of this news release.
  Financial Analysis
  The  PEA assumes a base case gold price of US$2,200/oz. Using that base case  assumption, the Project generates an after-tax NPV of $706 million  using a 5% discount rate and an after-tax IRR of 21%.
  The Project  generates cumulative free cash flow of $1,367 million and averages  annual free cash flow of $120 million over a mine life of 16 years  (Figure 1). Total taxes payable over LOM at the base case gold price is  $776 million.
  Figure 1. Annual After-Tax Free Cash Flow (millions)
    
  Sensitivities
  The  PEA financial economic analysis is significantly influenced by gold  prices. At a gold price of US$3,000/oz and FX of CAD$:US$ of 1.35:1.00,  the Project generates an after-tax NPV of $1,381 million and an  after-tax IRR of 34% with a payback period of 2.4 years from the start  of commencement of production (Table 2).
  Table 2: PEA Sensitivity Analysis
    
    
    
  Production
  Annual production over LOM is expected to average 107,000 ounces with peak production of 141,000 ounces in year 1 (Figure 2).
  Figure 2. Production Profile
    
  Capital Expenditures
  The  initial capital expenditures are estimated at $579 million, and the  sustaining capital expenditures are estimated at $449 million (Tables 3  & 4). A contingency of $57 million and $20 million is included in  initial and sustaining capital expenditures, respectively.
  Initial  and sustaining capital expenditures were estimated based on current  costs received from vendors as well as developed from first principles,  while some were estimated based on factored references and experience  from similar operating projects.
  Table 3: Initial Capital Expenditures
    
 
 - All values stated are undiscounted. No depreciation of costs was applied.
 - Non-IFRS financial measures with no standardized definition under IFRS. Refer to Non-IFRS Measures at end of this news release.
  Table 4: Sustaining Capital Expenditures
    
 
 - All values stated are undiscounted. No depreciation of costs was applied.
 - Non-IFRS financial measures with no standardized definition under IFRS. Refer to Non-IFRS Measures at end of this news release.
 - Due to rounding, columns may not add up.
  Total Cash Costs
  The  total unit cash costs are estimated at US$851/oz. The AISC is estimated  at US$1,046/oz. Operating cost estimates were developed using first  principles methodology, vendor quotes, and productivities being derived  from benchmarking and industry practices.
  Table 5: Total Cash Costs
    
 
 - All values stated are undiscounted. No depreciation of costs has been applied.
 - Non-IFRS  financial performance measures with no standardized definition under  IFRS. Refer to Non-IFRS Measures at the end of this news release.
 - Total cash costs include mining (UG and OP), processing, water treatment and tailings, minesite G&A and royalty costs.
  Mineral Resource Estimate
  The updated mineral resource estimates (“MRE”)  for the Fenelon and Martiniere deposits presented in this news release  were prepared by Mauro Bassotti, P.Geo., an independent mineral resource  consultant using all available information. The effective date of the  2025 MRE is March 20, 2025. The databases supporting the 2025 MREs are  complete, valid and up to date, with close-out dates of October 22, 2024  and January 8, 2025 for Fenelon and Martiniere respectively. The 2025  Mineral Resource Statement for the Detour-Fenelon Gold Trend Property is  presented below in Table 6. The statement provides the consolidated  estimates for the Fenelon and Martiniere deposits. Details are provided  in Item 14 of the PEA technical report.
  Table 6: Detour-Fenelon Gold Trend Property 2025 Mineral Resource Statement by Deposit
    
  Notes to accompany the Detour-Fenelon Gold Trend Property 2025 Mineral Resource Statement: 
 
 - The effective date of the 2025 MREs is March 20, 2025.
 - The 2025 MREs follow CIM Definition Standards (2014) and CIM MRMR Guidelines (2019).
 - The qualified person (“QP”) for the 2025 MREs is Mr. Mauro Bassotti (P.Geo.) who is an independent mineral resource consultant.
 - The  criterion of reasonable prospects for economic extraction has been met  by having constraining volumes applied to estimated blocks using GEOVIA  Whittle pit optimizer (“Whittle”) software for open pit mineral  resources and using Deswik Stope Optimizer (“DSO”)  software for underground mineral resources, and by the application of  cut-off grades appropriate to the potential mining extraction scenario  (i.e., open pit, underground long-hole, underground cut-and-fill).  Constraining 3D Whittle open pit and DSO underground stope volumes have  been generated based on a gold price assumption of US$2,150 per troy  ounce. A minimum mining width of 2.0 m was used for underground stope  optimization.
 - The potentially economic open pit shells and  underground DSO shapes used for reporting the 2025 MREs have been  generated by Mr. Simon Boudreau (P.Eng.), Senior Mining Engineer for  InnovExplo Inc., a member of Norda Stelo Inc.
 - For the Fenelon  deposit, sixteen (16) mineralized domains and four (4) surrounding  alteration envelopes were modelled in 3D to the true thickness of the  mineralization. Supported by measurements, a density value of 2.80 g/cm3 was applied to blocks inside mineralized domains and 2.81 g/cm3  to blocks inside alteration envelopes. High-grade capping was applied  to raw assay data and established on a per-zone basis, ranging between 7  g/t Au and 100 g/t Au for the mineralized domains, and a fixed capping  value of 10 g/t Au for the alteration envelopes. One-metre (1.0 m)  sample assay composites were calculated within the mineralized domains  and alteration envelopes using the grade of the adjacent material when  assayed or a value of 0.001 when not assayed.
 - For the Martiniere  deposit, sixteen (16) mineralized domains and ten (10) surrounding  alteration envelopes were modelled in 3D to the true thickness of the  mineralization. Supported by measurements, the mean density value of the  domain was applied to the blocks inside mineralized domains and  alteration envelopes, with density values ranging from 2.80 to 3.09 g/cm3.  High-grade capping was applied to raw assay data and established on a  per-zone basis, ranging between 15 g/t Au and 100 g/t Au for the  mineralized domains, and a fixed capping value of 5 g/t Au for the  alteration envelopes. 1.0 m composites were calculated within the  mineralized domains and alteration envelopes using the grade of the  adjacent material when assayed or a value of 0.001 when not assayed.
 - The  cut-off grades for the Fenelon deposit were calculated using a gold  price of US$2,250/oz; a USD/CAD exchange rate of 1.35; a refining cost  of $5.00/t; a processing cost of $30.00/t; a mining cost of $5.75/t  (bedrock) or $5.95/t (overburden) for the surface portion; a mining cost  of $90.00/t for the underground portion; and a G&A cost of  $10.00/t. A metallurgical recovery of 95.0% and royalty of 4.0% were  applied to the cut-off grade calculations.
 - The cut-off grades  for the Martiniere deposit were calculated using a gold price of  US$2,250/oz; a USD/CAD exchange rate of 1.00:1.35; a refining cost of  $5.00/t; a processing cost of $30.00/t; a mining cost of $5.75/t  (bedrock) or $5.95/t (overburden) for the surface portion; a mining cost  of $125.00/t for the underground portion using the long-hole mining  method (“LH”), a mining cost of $135.00/t for the underground portion  using the cut-and-fill mining method (“CF”); and a G&A cost of  $10.00/t. A metallurgical recovery of 85.0% and royalty of 2.0% were  applied to the cut-off grade calculations. The metallurgical recovery is  based upon a metallurgical characterization study completed in December  2024 (SGS, 2024; Wallbridge news release dated December 19, 2024).
 - Tonnage  estimates are reported to the nearest 1000 tonnes (000’s). Contained  gold estimates are reported to the nearest 1000 troy ounces (000’s).
 - These mineral resources are not mineral reserves as they do not have demonstrated economic viability.
 - The  QP is not aware of any known environmental, permitting, legal,  title-related, taxation, sociopolitical or marketing issues, or any  other relevant issue, that could materially affect the potential  development of mineral resources other than those discussed in the 2025  MREs.
 - Results are presented in situ. Ounce (troy) = metric tons x  grade/31.10348. Any discrepancies in the totals are due to rounding  effects; rounding followed the recommendations as per NI 43-101.
  The reader should note that the 2025 PEA does not include the Martiniere deposit mineral resource estimate.
  Mining
  The mine will have a production rate of 3,000 tonnes per day (“tpd”) over a 16-year LOM.
  A total of 16.6 Mt of mineralized material at an average grade of 3.34 g/t will be extracted from three different mining zones:
 
 - Contact-Tabasco-Cayenne (“C-T-C”), with 54.6% of the ounces to be mined;
 - Area 51, with 44.9% of the ounces to be mined; and
 - Gabbro open pit, with 0.5% of the ounces to be mined.
  The  mining method will be long hole with longitudinal stopes measuring 5 to  8 m wide, corresponding to 44% of the stope tonnage. Transverse stopes  are designed for stopes 8 to 15+ m wide, which account for 56% of the  remaining stope tonnage.
  Stope dimensions are 30 m (Area 51 zone)  to 40 m (C-T-C zones) high, 5 to 15 m wide, and 20 m long. The average  stope size in all zones is approximately 15,000 t. An average of 70  stopes will be mined annually. Mining recovery is estimated at 95%.  Stope backfilling will be done mostly with paste backfill (66%) or  cemented rock fill (2%) or rock fill (32%), depending on the stope  dimensions and sequence.
  A mining contractor will carry out  development during pre-production. Starting in pre- production Year -1,  the development will be done with the owner’s equipment and personnel.  The priority is to develop the main C-T-C ramp and access production  horizon.
  The mining fleet, comprised of a maximum of 66 pieces of  mobile equipment, will be purchased via a financing agreement.  Supporting underground infrastructure includes two ventilation intake  raises and heating systems, and one exhaust raise.
  Figure 3. Overview of the Fenelon Project on a Longitudinal View Looking North 
    
  Metallurgy
  The  main metallurgical testwork program was conducted in two phases, in  2020 and 2021, on material from the Area 51 and C-T-C zones by SGS  Canada Inc.
  Grindability testing, including semi-autogenous grinding (“SAG”)  mill comminution testing, was completed in 2021. The samples were  characterized as hard in terms of resistance to impact breakage during  the SMC test, with A×b drop weight test values ranging from 23 to 31.  The Bond rod mill work index results ranged from 15.6 to 16.9 kWh/tonne,  classifying the material as moderately hard to hard. The Bond ball mill  work index ranged from 13.4 to 16.2 kWh/tonne, indicating a medium  hardness range.
  Gravity gold recovery testing was performed in  2021 on a representative composite sample from the C-T-C and Area 51  zones. The testwork results for E-GRG (Extended Gravity Recoverable  Gold) showed gold recoveries of up to 82% for the Contact zone and 90%  for the Area 51 zone, aligning with the results from prior testing  conducted in 2020. These findings confirm the necessity of incorporating  a gravity circuit in the process flowsheet.
  Cyanidation testing  was conducted in 2020 on representative samples following gravity  recovery. Overall gold recoveries ranged from 94.6% to 96.9% for the  C-T-C zones and from 95.3% to 97.1% for the Area 51 Zone.
  Based on  the metallurgical testwork conducted in 2020 and 2021, and considering  the planned process flowsheet, the estimated average payable gold  recovery for the process plant is expected to be 96.0% over the LOM.
  Processing
  The  process plant is designed to treat a total of 3,000 tpd of material. It  will incorporate a SAG mill operating in closed circuit with a pebble  crusher, and a ball mill in closed circuit with cyclones, forming a  Semi-Autogenous Ball Mill Crusher circuit.
  Gold recovery will be  achieved through a leaching circuit. The cyclone overflow will be  processed through a pre-leach tank, followed by a seven-tank  carbon-in-leach (“CIL”) circuit and an SO2/Air  cyanide destruction system. Gold will be recovered via an  adsorption-desorption-recovery circuit using the Zadra process, followed  by electrowinning cells. The final gold product will be refined in the  gold room, where gold bars will be produced and subsequently shipped to  facilities for purification.
  The SO2/Air cyanide  detoxification circuit will be followed by a tailings flotation circuit,  where the sulphide concentrate will be utilized for paste backfill to  be sent underground and/or non sulphide to produce dried tailings for  tailings storage.
  The process plant facility will also include, a mill maintenance workshop, administrative offices, and a dry room.
  Project Infrastructure
  The  Project is approximately 75 km from the town of Matagami. It can be  accessed from highway 810 via a 24-km forestry road. The existing  Fenelon camp includes a welcome center, a 155-room dormitory, a dry, a  kitchen, a dining room, a game room, a workshop and a First Nations  cultural centre.
  The existing camp and mine site include a core  shack, modular offices, a garage, a water treatment plant, an air  ventilation-heating system to serve the underground openings, an open  pit and a portal connecting to an underground ramp. The camp and mine  site are served by diesel generators for electricity production. All  these facilities will be used at the start of the Project and will be  upgraded, expanded or replaced during construction and operations.
  The  mining and processing infrastructure will be located on the Fenelon  site. The Project envisions the upgrade of existing surface  infrastructure: site access road, potable water and sewage systems,  underground mine portal, mine ventilation systems (intake and exhaust),  main and remote gatehouses, surface maintenance shop, waste rock  stockpile, overburden stockpile, and mineralized material stockpile. The  Project will require construction of the following infrastructure  items: 3,000 tpd process plant complex, paste plant, offices, dry, truck  shop and warehouse; 4 km of new 120kV overhead transmission line from  the connection point to HydroQuebec up to a new 120-69 kV substation;  from this point, a new 69kV overhead line will run for 22 km up to the  new site substation (69kV-25kV); final effluent water treatment plant;  surface water management facility, including ditches, pond and pumping  stations; service and haulage roads; and tailings management facility.
  The  camp will be expanded to 250 rooms with associated kitchen, dining room  and game- exercise room. A local office is planned in a nearby town to  support administration, communication, human resources and technical  personnel.
  Underground Infrastructure
  The  main ventilation intake is a 4 m diameter raise bored from L-270 to the  surface in two sections, serving as the primary fresh air intake with  high-efficiency surface fans. Exhaust air will exit mainly through the  main ramp.
  Underground infrastructure includes a service bay on  L-520, which will accommodate a welding bay, garage, tire storage,  washing bay, small warehouse, greasing bay, fuel bay, and parking. The  garage will allow for simultaneous maintenance of two large equipment  units and one smaller unit, ensuring efficient underground operations.
  Underground refuge stations are strategically located within 1,000 m to ensure accessibility.
  Mine  dewatering will be managed through separate systems for contact and  non-contact water. Contact water, collected from groundwater inflow and  mine operations, will be directed to three main pumping. Non-contact  water will be channeled down to a dedicated pumping station. Each  Pumping station will be equipped with three centrifugal pumps (two in  operation, one on standby).
  Pump stations and powder magazines are  not explicitly included in the design but have been accounted for in  the equivalent meter contingency, with associated costs incorporated  into the financial model.
  Tailings and Waste Rock Management
  Tailings  from mill operations will be managed in two streams: used as  underground paste backfill or disposed on the surface as filtered  tailings in a dry stack facility (85% solids). Tailings will be pumped  either to the paste backfill plant (via the filter plant for pre-  processing) or to a filter plant before being trucked to the tailings  storage facility (“TSF”).
  The selection of the  site for surface tailings disposal was advanced in previous studies. The  proposed site is located 1.0 km northwest of the mill. In this area,  the topography is relatively flat, and the site is surrounded by a  natural stream, a conceptual high-water mark was outlined. The perimeter  of the facility’s footprint was placed at 30 m from the conceptual  line.
  Given the low potential for acid mine drainage and metal  leaching of the surface tailings facility, the current design, as  proposed, is not lined. It is noted, however, the geochemical testing is  ongoing and should the addition of the membrane be required this can  increase costs significantly and should be included, in such a case, in  future designs. It is further noted that Wallbridge has elected to  include a desulphurization plant, with the residual sulphur content  being below the threshold limits of the new Directive 019. All things  considered this study has not included a membrane to encapsulate the  tailings.
  The paste mixer is a horizontal twin shaft mixer with a  capacity of 3 m³. In the mixer, the filtered desulphurized tailings are  mixed with binder (90/10 slag cement binder was selected from the  preliminary uniaxial compressive strength results) and thickened  sulphide tailings from the holding tank to form paste backfill. The  mixer will be fitted with an adjustable slump water stream to control  the density of the paste. After mixing, the paste backfill is pumped to  the borehole feeding the underground paste distribution system using one  positive displacement piston pump.
  As conceptualized, all  development waste rock will be used to fill underground voids at some  point in the mine life. A portion of the material will have to be  temporarily stored on surface, while stopes are being mined out. The  limited geochemistry available has indicated that the development waste  is both PAG and metal leaching. As such this has been considered in the  design of the waste pile which will store 0.84 Mm3 of material at its peak.
  Water Treatment
  All  contact water, including groundwater, surface runoff and tailings and  waste rock storage facilities drainage shall be collected and treated at  the water treatment plant before being discharged to the environment.
  The water treatment plant (“WTP”)  will be located near the TSF water basin. A settling pond will decant  solids from the underground dewatering. An MBBR reactor (moving bed  biofilm reactor) will remove ammonia and/or other nitrogen-based  contaminants present in water from both underground dewatering and TSF.  Finally, MBBR-treated water and other contact water containing suspended  solids and metals will be removed in a high-rate clarifier by following  treatment steps such as metal precipitation, coagulation, flocculation,  and clarification. The final effluent from the WTP will be discharged  into the environment by gravity, and its quality will be monitored in an  effluent quality monitoring station.
  Environment and Permitting
  In  Northern Quebec (James Bay region located south of the 55th parallel),  all mining development projects must follow the environmental assessment  (“EA”) and review procedures under the Regulation  Respecting the Environmental and Social Impact Assessment and Review  Procedure applicable to the territory of James Bay and Northern Quebec.  With a planned production capacity of 3,000 per day, the mining project  does not exceed the 5,000 per day threshold for the federal  environmental assessment procedure set out in the Physical Activities  Regulations (SOR/2019-285). Therefore, no environmental assessment in  compliance with the requirements of the federal Impact Assessment Act  (S.C. 2019, c. 28, s. 1) will be required.
  The acquisition of  baseline environmental knowledge on the Project began several years ago  and is still ongoing today. To date, preliminary environmental  characterizations of the physical environment and biological environment  have been carried out and/or are ongoing. Confirmation of the  regulatory context made it possible to identify the scope of the  environmental studies required to obtain environmental authorizations.  Inventory work is underway to fill these gaps.
  To date, no major  environmental issues have been identified in the work undertaken. The  situation of the woodland caribou, designated as vulnerable in Quebec  and threatened at the federal level, remains uncertain to date in the  Project area with regard to future legal protection of its habitat.
  A  preliminary geochemical characterization program has been in progress  since 2020 to identify the geo-environmental characteristics of  mineralized material and mine wastes and classify their environmental  risk (e.g., for acid rock drainage and metal leaching) based on Quebec  provincial guidance documents. Findings from the geochemical study have  been incorporated into the Project design.
  Closure Plan
  A  closure and rehabilitation plan for the land affected by the Project  will be prepared and submitted for authorization. The preliminary  concept for site closure is estimated at $11.5 million. The current  financial deposit for site closure is estimated at $2.9 million for a  net closure cost of $8.6 million.
  Figure 4. Process Flow Sheet
    
  Stakeholder Engagement
  Wallbridge  conducts consultation activities with the Cree communities of  Waskaganish and Washaw Sibi, and the Cree Nation Government. It also  consults with the Algonquin Abitibiwinni First Nation through weekly  meetings, site visits and monthly bulletins. In addition, Wallbridge  follows a formal consultation plan and schedule developed as part of the  2019 ESIA process. The plan aims to identify and communicate with  potentially interested and/or impacted First Nations and stakeholders.  The First Nations consultation activities include:
 
 - Meetings and traditional knowledge workshops with the Tallyman
 - Meetings with the First Nation leaders
 - Participating in a mining workshop and community feast in Waskaganish
 - Project update bulletins
 - Weekly scheduled meetings with each community and other frequent discussions as needed
 - Assisting with business development and employment opportunities
 - Site visits
 - Assisting local Tallyman by providing assistance or accommodation when needed.
  Workforce
  Wallbridge’s  hiring and contracting policy is to hire First Nations and local  community members or service providers when possible.
  Consultation  activities with the municipalities, associations, organizations and  political stakeholders have included project update correspondence,  meetings with the municipalities and their chambers of commerce, and  meetings with interested organizations.
  Wallbridge actively  collaborates with the town of Matagami, the Société de Développement de  la Baie-James, the Société du Plan Nord and the Cree Nation Development  Corporation to identify opportunities for employment and infrastructure  development projects in the vicinity of the Project.
  Independence and Responsibilities 
  The  PEA was prepared for Wallbridge Mining by independent consulting firms  with their respective responsibilities listed in Table 7. The Qualified  Persons (“QP”) are not aware of any environmental,  permitting, legal, title, taxation, socio-economic, marketing,  political, or other relevant factors that could materially affect the  PEA. Each QP has reviewed and approved the content of this news release.
  All  scientific and technical data contained in this news release has been  reviewed and approved by Mr. Marc R. Beauvais, P.Eng, of InnovExplo, who  was responsible for compiling the PEA technical report. By virtue of  his education, membership in a recognized professional association and  relevant work experience, Mr. Beauvais is an independent QP as defined  by NI 43-101.
  All scientific and technical data related to the  MREs contained in this document has been reviewed and approved by Mr.  Mauro Bassotti (P.Geo.) who is an independent mineral resource  consultant and a QP as defined by NI 43-101.
  The Company cautions  that the results of the PEA are preliminary in nature and include (i)  indicated mineral resources with potential quantity and grades that are  conceptual in nature, with insufficient exploration to define as a  mineral resource and that it is uncertain if further exploration will  result in the target being delineated as a mineral resource; and (ii)  inferred mineral resources that are considered too speculative  geologically to have economic considerations applied to them to be  classified as mineral reserves. There is no certainty that the results  of the PEA will be realized.
  Table 7: Consulting Firm, Area of Responsibility and Qualified Person
    
  The QPs mentioned above have reviewed and approved their respective technical information contained in this news release.
  The  reader is advised that the PEA summarized in this news release is  intended to provide only an initial, high-level review of the project  potential and design options. The PEA mine plan and economic model  include numerous assumptions and the use of inferred mineral resources.  Inferred mineral resources are considered to be too speculative to be  used in an economic analysis except as allowed for by NI 43-101 in PEA  studies. There is no guarantee that inferred mineral resources can be  converted to indicated or measured mineral resources, and as such, there  is no guarantee the project economics described herein will be  achieved.
  A NI 43-101 technical report supporting the PEA has been filed on SEDAR+ and is available on the Company’s website.
  Webcast
  Wallbridge management will host a webinar to discuss the Fenelon PEA results.
  Date and Time: Tomorrow, Friday March 28,2025, starting at 10:00AM EDT
  Registration: To participate in the webinar, please register here:
  6ix.com
  A  presentation that summarizes the PEA results of the Project will be  available on the Company’s website at 10:00 AM EDT on Friday, March 28,  2025.
  About Wallbridge Mining
  Wallbridge is  focused on creating value through the exploration and sustainable  development of gold projects in Quebec’s Abitibi region while respecting  the environment and communities where it operates. The Company holds a  contiguous mineral property position totaling 830 km2 that  extends approximately 97 km along the Detour-Fenelon gold trend. The  property is host to the Company’s flagship PEA stage Fenelon Gold  Project, and its earlier exploration stage Martiniere Gold Project, as  well as numerous other gold exploration projects.
  For further information please visit the Company’s website at wallbridgemining.com or contact:
  Cautionary Note Regarding Forward-Looking Information
  This news release contains forward-looking statements or information (collectively, “FLI”)  within the meaning of applicable Canadian securities legislation. FLI  is based on expectations, estimates, projections, and interpretations as  at the date of this news release.
  All statements, other  than statements of historical fact, included herein are FLI that involve  various risks, assumptions, estimates and uncertainties. Generally, FLI  can be identified by the use of statements that include words such as  “seeks”, “believes”, “anticipates”, “plans”, “continues”, “budget”,  “scheduled”, “estimates”, “expects”, “forecasts”, “intends”, “projects”,  “predicts”, “proposes”, "potential", “targets” and variations of such  words and phrases, or by statements that certain actions, events or  results “may”, “will”, “could”, “would”, “should” or “might”, “be  taken”, “occur” or “be achieved.”
  FLI herein includes,  but is not limited to, statements regarding the results of the PEA,  including the production, operating costs, capital expenditures and  total cash cost estimates, the projected valuation metrics and rates of  return, and the cash flow projections, as well as the anticipated  permitting requirements and Project design, including processing and  tailings facilities, infrastructure developments, metal recoveries, mine  life and production rates for the Project, the potential to further  enhance the economics of the Project and optimize the design, potential  timelines for obtaining the required permits and financing, parameters  and methods used to estimate the mineral resource estimates (each an “MRE”) at Fenelon and Martiniere (collectively the “Deposits”);  the prospects, if any, of the Deposits; future drilling at the  Deposits; and the significance of historic exploration activities and  results. Forward-looking information is not, and cannot be, a guarantee  of future results or events.FLI is designed to help you understand  management’s current views of its near- and longer-term prospects, and  it may not be appropriate for other purposes. FLI by their nature are  based on assumptions and involve 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 future  results, performance or achievements expressed or implied by such FLI.  Although the FLI contained in this document is based upon what  management believes, or believed at the time, to be reasonable  assumptions, the Company cannot assure shareholders and prospective  purchasers of securities of the Company that actual results will be  consistent with such FLI, as there may be other factors that cause  results not to be as anticipated, estimated or intended, and neither the  Company nor any other person assumes responsibility for the accuracy  and completeness of any such FLI. Except as required by law, the Company  does not undertake, and assumes no obligation, to update or revise any  such FLI contained in this document to reflect new events or  circumstances. Unless otherwise noted, this document has been prepared  based on information available as of the date of this document.  Accordingly, you should not place undue reliance on the FLI, or  information contained herein.
  Furthermore, should one or  more of the risks, uncertainties or other factors materialize, or should  underlying assumptions prove incorrect, actual results may vary  materially from those described in FLI.
  Assumptions upon  which FLI is based, without limitation, include: the results of  exploration activities, the Company’s financial position and general  economic conditions; the ability of exploration activities to accurately  predict mineralization; the accuracy of geological modelling; the  ability of the Company to complete further exploration activities; the  legitimacy of title and property interests in the Deposits; the accuracy  of key assumptions, parameters or methods used to estimate the MREs and  in the PEA; the ability of the Company to obtain required approvals;  geological, mining and exploration technical problems; and failure of  equipment or processes to operate as anticipated; the evolution of the  global economic climate; metal prices; foreign exchange rates;  environmental expectations; community and non-governmental actions; and,  the Company’s ability to secure required funding. Risks and  uncertainties about Wallbridge's business are discussed in the  disclosure materials filed with the securities regulatory authorities in  Canada, which are available at  www.sedarplus.ca.
  Non-IFRS Financial Measures
  Wallbridge  has included certain non-IFRS financial measures commonly used in the  mining industry in this news release, such as initial capital  expenditures, sustaining capital expenditures, total cash costs and  all-in sustaining costs, which are not measures recognized under IFRS  and do not have a standardized meaning prescribed by IFRS. As a result,  these measures may not be comparable to similar measures reported by  other companies. Each of these measures used are intended to provide  additional information to the user and should not be considered in  isolation or as a substitute for measures prepared in accordance with  IFRS. Non-IFRS financial measures used in this news release and common  to the gold mining industry are defined below.
  Total Cash Costs and Total Cash Costs per Ounce
  Total  cash costs are reflective of the cost of production. Total cash costs  reported in the PEA include mining (UG and OP), processing, water  treatment and tailings, minesite G&A and royalty costs. Total cash  costs per ounce is calculated as total cash costs divided by payable  gold ounces.
  All-In Sustaining Costs and All-In Sustaining Costs per Ounce
  All-in  sustaining costs and all-in sustaining costs per ounce are reflective  of all of the expenditures that are required to produce an ounce of gold  from operations. All-in sustaining costs reported in the PEA include  total cash costs, sustaining capital expenditures, closure costs, but  exclude corporate general and administrative costs. All-in sustaining  costs per ounce is calculated as all-in sustaining costs divided by  payable gold ounces.
  A description of the significant  cost components that make up the forward looking non-IFRS financial  measures of total cash costs and all-in sustaining costs per ounce of  payable gold produced is shown in the table below.
  Free Cash Flow
  Free  cash flow was estimated as the amount of cash generated by Fenelon  after all operating and capital expenditures have been paid.
  Initial Capital Expenditures and Sustaining Capital Expenditures
  Initial  and sustaining capital expenditures in the PEA were estimated based on  current costs received from vendors as well as developed from first  principles, while some were estimated based on factored references and  experience from similar operating projects. Initial capital expenditures  represent the construction and development costs to achieve commercial  production and sustaining capital expenditures represent the  construction and development costs subsequent to commercial production.
    
  Cautionary Note to United States Investors
  Wallbridge  prepares its disclosure in accordance with NI 43-101 which differs from  the requirements of the U.S. Securities and Exchange Commission (the "SEC").  Terms relating to mineral properties, mineralization and estimates of  mineral reserves and mineral resources and economic studies used herein  are defined in accordance with NI 43-101 under the guidelines set out in  CIM Definition Standards on Mineral Resources and Mineral Reserves,  adopted by the Canadian Institute of Mining, Metallurgy and Petroleum  Council on May 19, 2014, as amended. NI 43-101 differs significantly  from the disclosure requirements of the SEC generally applicable to US  companies. As such, the information presented herein concerning mineral  properties, mineralization and estimates of mineral reserves and mineral  resources may not be comparable to similar information made public by  U.S. companies subject to the reporting and disclosure requirements  under the U.S. federal securities laws and the rules and regulations  thereunder. |