Form 6-K Sayona Mining Ltd For: Aug 26

APPENDIX A – JORC TABLES

Section 1: Sampling Techniques and Data

 

	Criteria		JORC Code explanation			Commentary
	Sample security		The measures taken to ensure sample security.			All reasonable measures and industry-standard sample and storage protocols have been applied. Sample security is controlled by tracking samples from the drill rig through core logging, sampling, laboratory preparation and analysis, and database entry. Drill core was delivered from the drill rig to the core yard every shift. On completion of geological and geotechnical logging, Laurentia Exploration or Sayona personnel and/or their representatives finished processing the core and sent the samples to the laboratory.
	Audits or reviews		The results of any audits or reviews of sampling techniques and data.			Internal reviews of core handling, sample preparation and laboratory procedures were conducted on a regular basis by both Laurentia Exploration or Sayona personnel and/or by their representatives. The CP for the resource estimate, Mr. Alain Carrier, P.Geo., completed an independent logging and sampling review, and conducted re-sampling of selected core intervals. The results of the CP’s independent re-sampling programme are satisfactory. Independent (Technominex) and internal (Sayona) CPs also conducted site visits and reviewed the application of core logging and sampling protocols and procedures. During the 2025 Summer-fall campaign, sampling was conducted at Service MNG in Val-d’Or and at Services Technominex in Rouyn-Noranda. The drill core was logged and sampled by experienced geologists (Sayona/Laurentia Exploration) at the Moblan site, at the Chatillon camp. Sayona has continued the same sampling procedures as for the 2022-2024 campaign. The transportation of the core was handled by these two companies (MNG and Technominex). The cores were palletised at the site after logging and alternately transported by these two service companies. The delivery of the samples to the ALS laboratory was carried out by MNS (in Val-d'Or) and Technominex (in Rouyn-Noranda). The core storage is located at the LAN mining site in La Corne, and the storage of pulp and rejects is at the warehouse in Amos. The sample preparation, security and analytical procedures are consistent with current industry standards and are appropriate and acceptable for the styles of mineralisation identified and will be appropriate for use in mineral resource estimation. There are no identified drilling, sampling or recovery factors that materially impact the adequacy and reliability of the results of the drilling programme on the Project.

	Criteria		JORC Code explanation			Commentary
	Mineral tenement and land tenure status		Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.			Moblan is situated in the northwestern part of the Province of Québec, Canada. The Moblan Property, host to the lithium mineral resources outlined in the 2025 MRE consists of 20 claims (roughly 433 ha or 4.3 km2) held by Sayona Nord (60%) and Investissement Québec (40%). The Moblan Property is subject to a 1.5 to 2.5% Gross Overriding Revenue (‘GOR’) royalty payable to Lithium Royalty Corporation.
			The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.			All claims are in good standing as of July 7, 2025. Claims are currently owned 60% by Sayona Nord Inc. (101628) and 40% by Investissement Québec (19383). On 31 December 2023, SOQUEM transferred its 40% participation in Moblan Property claims to Investissement Québec. Investissement Québec is now a 40% partner in the Moblan Property (according to the document entitled “Moblan joint venture agreement deed of assignment” dated 31 December 2023. There are no impediments that have been identified for operating in the Project areas.
	Exploration done by other parties		Acknowledgment and appraisal of exploration by other parties.			The current Properties cover and overlap many historical mining and exploration properties. The boundaries and names of those properties have evolved following changes in ownership, option agreements, or land packages as claims were abandoned or added. Exploration work has been varied (e.g., prospecting, mapping, geophysics, geochemistry, drilling, etc.) and has focused on a variety of commodities (e.g., precious metals, base metals, and, more recently, critical and strategic minerals). Interest in lithium in the area began in the 1960s inside the current limits of the Moblan Property. Surface prospecting and trenching performed by Muscocho Explorations Ltd in 1963 resulted in the discovery of numerous lithium-bearing dykes. A few of the dykes had been sampled earlier and revealed high grades of lithium oxide. Twenty-eight (28) lithium-bearing pegmatite dykes have been discovered in six (6) separate areas on the Moblan Property between 1992 and 2004, during work conducted by Abitibi Lithium Corporation. The current Project has been the subject of significant exploration and drilling efforts, including geophysics, geochemistry, historical studies, metallurgical testing and engineering studies.
	Geology		Deposit type, geological setting and style of mineralisation.			The Properties host several mineral occurrences and showings. These (and other adjacent) occurrences highlight the strong potential of the area for (i) Li pegmatite deposits; (ii) Cu-Zn VMS deposits; (iii) Au orogenic quartz-carbonate veins and disseminated sulphide deposits; (iv) Ni-Cu-PGE magmatic sulphide deposits; and (v) Au-Cu porphyry systems (e.g., Troilus Gold). The economic potential of the Moblan Property is for lithium mineralisation (spodumene pegmatites). The Project hosts several lithium pegmatites dykes, which mostly lie within a gabbro unit. A total of 49 different dykes have been documented, modelled and estimated in the 2025 MRE. These pegmatite dykes have been affected by brittle tectonics generating a series of faults. The lithium pegmatites were grouped into three (3) dyke swarms (groups or domains): Main, South/Moleon and New South. Each corresponds to a series of stacked dykes of variable thicknesses. The boundaries between the domains are marked by structural discontinuities.

	Criteria		JORC Code explanation			Commentary
						The Main, South and New South pegmatites correspond to a group of 27 lithium pegmatite dykes oriented E-W and dipping slightly to the north (N260°/-10°). This swarm extends approximately 2,250 m E-W and 1,400 m N-S (projection on surface). In this group, three (3) dykes have an average intercept length greater than 10 m. The Moleon pegmatites correspond to a group of 22 lithium pegmatite dykes oriented N-S and dipping steeply to the west (N180°/-60°). This swarm extends approximately 450 m N-S and 750 m E-W. In this group, two (2) dykes have an average intercept length greater than 10 m.
	Drill hole Information		A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: •          easting and northing of the drill hole collar •          elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole •          collar dip and azimuth of the hole •          down hole length and interception depth •          hole length.			Refer to previous exploration releases for the drill hole information of the previously reported intercepts (ASX announcements of 26 April 2022; 27 June 2022; 17 April 2023, 11 July 2023, 22 October 2023, 27 May 2024, 13 June 2024, 27 August 2024, 30 January 2025, 14 April 2025, 14 July 2025). Material information on the Project’s drill holes is illustrated on the figures (plan views, sections, results tables) in ASX Announcements of April, July and October 2023, and in May, June, and August 2024, January 2025,  April 2025 and July 2025. The coordinates in the figures and the tables are in metres (UTM NAD83 Zone 18), and the elevation is in metres above sea level. The selection of the most significant drill hole intercepts was based on high metal factors (%Li2O content x length in metres) for intervals in spodumene pegmatite dykes. In ASX Announcements of April, July and October 2023, of May and June 2024 and of January 2025, April 2025, and July 2025, the table includes collar dip and azimuth of the hole, down hole length, interception depth, and hole length. Depending on the azimuths and plunges of the selected boreholes, the drilled lengths are apparent and do not reflect true thicknesses. The CPs were provided with all necessary detailed drill hole information to complete the 2025 MRE.
			If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.			The Project is at an advanced stage of exploration, with a reported mineral resource, ongoing engineering studies, and a substantial database of 1,032 surface drillholes for 204,964 m. All the details are therefore not presented in table form.
	Data aggregation methods		In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. cutting of high grades) and cut-off grades are usually Material and should be stated.			Significant assay intercepts are reported as the weighted average over total pegmatite core length. Li2O grades do not show great variations (coefficient of variation of 0.85). Based on statistical analysis, no capping is required, and no capping was applied to the Project’s Li2O grades. Refer to previous exploration releases for the drill hole information of previously reported intercepts.
			Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.			Aggregation of Li2O grades to obtain the weighted average of a significant intercept is constrained within single pegmatite dykes.

	Criteria		JORC Code explanation			Commentary
			The assumptions used for any reporting of metal equivalent values should be clearly stated.			No metal equivalent values were used.
	Relationship between mineralisation widths and intercept lengths		These relationships are particularly important in the reporting of Exploration Results.			The reported significant assay intervals represent apparent widths. Refer to previous exploration releases for the drill hole information of previously reported intercepts.
			If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.			Drilling is not always perpendicular to the dip of mineralisation, and true widths are less than downhole widths. Lithium pegmatites correspond to a series of stacked dykes of variable true thicknesses.
			If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (e.g. ‘down hole length, true width not known’).			Pegmatite intercepts (%Li2O over m) are expressed over downhole length (not over true width).
	Diagrams		Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.			Refer to the figures in previous resources and exploration releases (ASX Announcement of April, July and October 2023, and May, June and August 2024, and January, April and July 2025) for illustrations of previously reported holes and assays and for the block model results of the 2025 MRE.
	Balanced reporting		Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.			All assay results were used to estimate and report the 2025 MRE.
	Other substantive exploration data		Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.			The reported drill results are consistent with geological observations and the mineral resource estimate as described. Metallurgical testing, geomechanical, geotechnical and environmental studies, and condemnation drilling were completed for engineering purposes. No other meaningful exploration data are reported.

	Criteria		JORC Code explanation			Commentary
	Database integrity		Measures taken to ensure that data has not been corrupted by, for example, transcription or keying errors, between its initial collection and its use for Mineral Resource estimation purposes.			Data are stored in a Geotic™ Database (MS Access database). Assays and geological data are electronically loaded into Geotic. Geotic's built-in validation tools were used. Sayona staff supplied the CPs with an MS Excel export of the final drilling and surface trenching database, which included collars, deviations, assays and geology. The CPs checked the downhole surveys visually and statistically for outliers. Assay data was checked for negative, extreme and missing values. Overlapping intervals were flagged when imported into Leapfrog. Assay values below the detection limit were set to half the lower detection limit for estimation purposes. Suspicious geological intervals that did not fit with surrounding drill hole intersections were verified by the CPs using core photos and then investigated and corrected where possible.
			Data validation procedures used.			The CPs completed a 5% audit on collar coordinates, downhole survey values and assay values by comparing the database information against the assay certificates (received directly from the independent and certified laboratories), surveyor certificates or source files from the DGPS, and source files from downhole deviation survey tools. Any data found to be in error were investigated and corrected where possible.
	Site visits		Comment on any site visits undertaken by the Competent Person and the outcome of those visits.			CP Carl Corriveau P.Geo., VP Exploration of Sayona, and CP Ehouman N’Dah, P.Geo., Exploration Manager of Sayona oversees all drilling and sampling activities. They regularly attend site and understand details associated with the site setting and location. The QPs site visits were performed by: •          Alain Carrier (P.Geo.) on March 30, 2022 ; April 4 and 6, 2022 and June 16, 2025. •          Marina Iund (P.Geo.) on June 03, 2025 •          Simon Boudreau (P. Eng), on August 1, 2023 During the visit, the QPs toured the parts of the Project relevant to their area of expertise. The main objectives of these visits were to: •          Understand the land topography, access points and natural features of the project site •          Understand the existing hydrographic network on the site (watercourses, lakes, etc.) •          Observe rock outcrops and drill core samples •          Field validation of drill collar locations •          Identification of existing borrow pits and future site and their location •          Identify potential sites for future structures and discuss them •          Identify all access roads to the site •          Use the collected data to guide detailed project planning and site preparation The CPs are satisfied with the quality of the measures undertaken.
			If no site visits have been undertaken indicate why this is the case.			Site visits were completed.

	Criteria		JORC Code explanation			Commentary
	Geological interpretation		Confidence in (or conversely, the uncertainty of) the geological interpretation of the mineral deposit.			The level of confidence in Moblan's geological model is high. Geology was modelled under the supervision of an independent CP in Leapfrog ™ (v.2024.1) using implicit modelling techniques. A total of 27 spodumene pegmatite dykes were modelled for the Main, South/Moleon and New South lithium-bearing domains. These volumes were modelled from logged geology and geochemical data. This information is based on the drilling and surface trenching database supplied by Sayona. Geology is the controlling factor in guiding mineral resource estimation.
			Nature of the data used and of any assumptions made.			The model is essentially based on drilling results and lithological descriptions.
			The effect, if any, of alternative interpretations on Mineral Resource estimation.			The surface and drill hole geological controls do not allow for any (or few alternative interpretations. Local differences in interpretation would not be material to the Project.
			The use of geology in guiding and controlling Mineral Resource estimation.			The model is not based on Li2O content alone; lithological descriptions and geochemical ratio were used to create 3D volumes for each of the individual pegmatite dykes (27 pegmatite dykes in the 2025 MRE).
			The factors affecting continuity both of grade and geology.			Locally small fault offsets can be expected. Geological and grade continuities are tested and supported by substantial drilling, assays and geological observations in the field and during core logging.
	Dimensions		The extent and variability of the Mineral Resource expressed as length (along strike or otherwise), plan width, and depth below surface to the upper and lower limits of the Mineral Resource.			The mineral resource area encompassing the Main, South and New South dyke swarms is 2,400 m long WSWENE, is 600–1,200 m wide, dips ~0–25° to the NNW, and has a vertical extent of ~350 m. The Moleon mineral resource area is ~750 m long N-S, ~450 m wide E-W, dips ~60-70° to the west, and has a vertical extent of ~350 m. Mineralisation remains open at depth and laterally for all domains
	Estimation and modelling techniques		The nature and appropriateness of the estimation technique(s) applied and key assumptions, including treatment of extreme grade values, domaining, interpolation parameters and maximum distance of extrapolation from data points. If a computer assisted estimation method was chosen include a description of computer software and parameters used.			Ordinary Kriging (OK) was selected as the method for grade interpolation because the Moblan lithium deposit is considered homogeneous based on geology, geostatistics and variography. No grade capping was applied to the 1m assay composites. Experimental variograms were modelled in Snowden Supervisor™ v8.14 using composites on a domain-by domain basis (4 experimental variograms were modelled). Estimation was completed in Leapfrog™ (v.2024.1) using a three-pass approach. For thicker pegmatites (drill hole intersects longer, on average, than 10 m), a minimum of 13, 13 and 4 composites and a maximum of 24, 24 and 24 composites were required for passes 1 to 3, respectively, using 0.5x, 1x and 2x the variogram ranges as search ellipses, respectively. For the remaining pegmatites, passes 1 to 3, 5, 5 and 2 minimum composites were required, 8, 8 and 8 maximum composites using 0.5 times. 1.0 times and 2.0 times the variogram ranges as search ellipses, respectively.
			The availability of check estimates, previous estimates and/or mine production records and whether the Mineral Resource estimate takes appropriate account of such data.			The current estimate was compared to previous historical estimates, both visually and volumetrically. No reconciliation data is available as the Project has not reached the extraction stage.

	Criteria		JORC Code explanation			Commentary
			The assumptions made regarding recovery of by-products.			The potential to recover Ta, Rb and Cs as by-products still need to be studied.
			Estimation of deleterious elements or other non-grade variables of economic significance (e.g. sulphur for acid mine drainage characterisation).			For metallurgical studies, the Fe2O3 contents of pegmatites and adjacent host rocks were estimated.
			In the case of block model interpolation, the block size in relation to the average sample spacing and the search employed.			The block model is octree-type. The parent block dimensions are 5 m x 5 m x 5 m, and the sub-blocks can go down to 1.25 m x 1.25 m x 1.25 m. The parameters of the block model are consistent with the drilling grid and the dimensions of the pegmatite dykes.
			Any assumptions behind modelling of selective mining units.			The SMU used for the optimisation was the parent block size (5 m x 5 m x 5 m).
			Any assumptions about correlation between variables.			Not applicable.
			Description of how the geological interpretation was used to control the resource estimates.			The geological interpretation (lithium pegmatites) provided hard boundaries for the estimation domains.
			Discussion of basis for using or not using grade cutting or capping.			The Li2O grades do not show great variations (coefficient of variation of 0.89). Based on the statistical analysis, no capping is required, and no capping was applied to the Project’s Li2O grades.
			The process of validation, the checking process used, the comparison of model data to drill hole data, and use of reconciliation data if available.			The block model validation was done by visually comparing the results of the OK, NN and ID2 estimates against the composited and raw assay data. Swath plots on 10-m-wide slices through the block model (comparing OK, ID2 and NN estimations) and the composite data set were generated for the X, Y and Z directions.
	Moisture		Whether the tonnages are estimated on a dry basis or with natural moisture, and the method of determination of the moisture content.			All tonnages are calculated and reported on a dry tonne basis.
	Cut-off parameters		The basis of the adopted cut-off grade(s) or quality parameters applied.			Conditions of ‘Reasonable Prospects for Eventual Economic Extraction’ (RPEEE) has been applied in accordance with JORC Code guidelines for the Mineral Resource estimate. Given the assumption of spodumene concentrate as the target product for potential economic extraction, the resource model has been restricted exclusively to spodumene-bearing pegmatites. The pit shell optimisation utilised lithium pricing based on a consensus forecast, as published by Benchmark Mineral Intelligence (Q1 2025). Cost assumptions for mining and processing were derived from a previously disclosed economic assessment of the Moblan Project (ASX Announcement dated 20 February 2024) with an overall operating cost of 79.20 CAD/t processed. The selected COG for the MRE is 0.55% Li2O and should be viewed as a metallurgical cut-off grade for an open pit. The cut‐off grades should be re‐evaluated in light of future prevailing market conditions (metal prices, exchange rate, mining cost, etc.).

	Criteria		JORC Code explanation			Commentary
	Mining factors or assumptions		Assumptions made regarding possible mining methods, minimum mining dimensions and internal (or, if applicable, external) mining dilution. It is always necessary as part of the process of determining reasonable prospects for eventual economic extraction to consider potential mining methods, but the assumptions made regarding mining methods and parameters when estimating Mineral Resources may not always be rigorous. Where this is the case, this should be reported with an explanation of the basis of the mining assumptions made.			An open pit scenario was retained for the MRE. All remaining tonnage outside of the optimised pit shell (Whittle) was excluded from the mineral resource statement. No underground mining scenario was retained. The resource-level pit shell optimisation was completed at US$1,550 /t conc. 6% Li2O and 75% metal recovery rate on a 5 x 5 x 5 m SMU using a pit wall angle of 56° in rock and 14 to 18° in overburden. Estimated mining costs are presented for the cut-off parameters above.
	Metallurgical factors or assumptions		The basis for assumptions or predictions regarding metallurgical amenability. It is always necessary as part of the process of determining reasonable prospects for eventual economic extraction to consider potential metallurgical methods, but the assumptions regarding metallurgical treatment processes and parameters made when reporting Mineral Resources may not always be rigorous. Where this is the case, this should be reported with an explanation of the basis of the metallurgical assumptions made.			Metallurgical recovery assumptions are based on historical metallurgical tests and recent  metallurgical testing conducted for the 2024 DFS under the supervision of independent CPs and Sayona representatives. The deposit has been drilled extensively. More than 14 composites generated range in grade from 0.70 to 1.73% Li2O and 0.74 to 1.41% Fe2O3. The majority of the testing was on near-mine grade material for Li2O but below-mine grade for Fe2O3. Near-surface material was used for bulk sampling and testing the ore sorting technology. The main metallurgical assumptions are that production generates a 6% Li2O concentrate with an average metallurgical recovery of 75% Li2O. The circuit requires a combined DMS and floatation configuration to achieve the reported recovery. Estimated processing costs are presented based on the proposed mine plan as detailed above. Pilot-scale test work has been undertaken for DMS and floatation processes, though it used a material that is above mine grade, with floatation results showing that there is potential for lower recoveries if floatation conditions vary from design.
	Environmental factors or assumptions		Assumptions made regarding possible waste and process residue disposal options. It is always necessary as part of the process of determining reasonable prospects for eventual economic extraction to consider the potential environmental impacts of the mining and processing operation. While at this stage the determination of potential environmental impacts, particularly for a Greenfields project, may not always be well advanced, the status of early consideration of these potential environmental impacts should be reported. Where these aspects have not been considered this should be reported with an explanation of the environmental assumptions made.			The assumption is that there will be no significant impediments to conventional waste management of rock and tailings

	Criteria		JORC Code explanation			Commentary
	Bulk density		Whether assumed or determined. If assumed, the basis for the assumptions. If determined, the method used, whether wet or dry, the frequency of the measurements, the nature, size and representativeness of the samples.			Density assignments in the block model are appropriate and supported by measurements.
			The bulk density for bulk material must have been measured by methods that adequately account for void spaces (vugs, porosity, etc.), moisture and differences between rock and alteration zones within the deposit.			Bulk density measurements were carried out in accordance with standard procedure using a water immersion method. Intervals for bulk density determination were selected according to lithology. 782 measurements were taken using a standard water immersion method on core samples averaging 0.4 m long, throughout the Moblan lithium deposit; 2,535 were taken in lithium pegmatites, 2.355 in gabbro, 321 in volcanics and 244 in metasediments.
			Discuss assumptions for bulk density estimates used in the evaluation process of the different materials.			Pegmatite densities were estimated using a regression function developed using bulk density measurements and Li2O%. The regression function is SG = 0.0604*Li2O% +2.61 (R2=0.665), which uses Li2O% block values and is used for the conversion of the volume of each block interpolated into a tonnage. Based on the mean of the measurements or theoretical values, other host rocks were given fixed densities values of 2.99 g/cm3 for gabbro, 2.92 g/cm3 for volcanics, 2.76 g/cm3 for metasediments, and 2.72 g/cm3 for granodiorite.
	Classification		The basis for the classification of the Mineral Resources into varying confidence categories.			The 2025 MRE has been classified as Measured, Indicated and Inferred mineral resources, reflecting varying confidence categories.
			Whether appropriate account has been taken of all relevant factors (i.e. relative confidence in tonnage/grade estimations, reliability of input data, confidence in continuity of geology and metal values, quality, quantity and distribution of the data).			Resource classification is based on drill hole spacing and geological and grade continuity. Within the modelled lithium pegmatites only, the Measured category was assigned to blocks estimated with a minimum of three (3) drill holes in areas where the minimum distance from a drill hole is less than 15 m. The Indicated category was assigned to blocks estimated with a minimum of three (3) drill holes in areas where the minimum distance from a drill hole is less than 30 m. The Inferred category was assigned to blocks estimated with a minimum of one (1) drill holes in areas where the minimum distance from a drill hole is less than 50 m.
			Whether the result appropriately reflects the Competent Person’s view of the deposit.			The classification as Measured, Indicated and Inferred mineral resources appropriately reflects the view of the independent CPs.

	Criteria		JORC Code explanation			Commentary
	Audits or reviews		The results of any audits or reviews of Mineral Resource estimates.			The key assumptions for the 2025 MRE were reviewed, discussed and decided with peers internally at InnovExplo and with Primero and Sayona representatives. The estimate has been prepared using accepted industry practices and completed in accordance with the JORC Code guidelines, and it is suitable for preparing a public report documenting the mineral resource estimates.
	Discussion of relative accuracy/ confidence		Where appropriate a statement of the relative accuracy and confidence level in the Mineral Resource estimate using an approach or procedure deemed appropriate by the Competent Person. For example, the application of statistical or geostatistical procedures to quantify the relative accuracy of the resource within stated confidence limits, or, if such an approach is not deemed appropriate, a qualitative discussion of the factors that could affect the relative accuracy and confidence of the estimate.			The level of confidence in the 2025 MRE is high. The uncertainty of the geological domains (the Main, South, Moleon and New South lithium pegmatite dyke swarms) is considered low.

	Criteria		JORC Code explanation			Commentary
			The statement should specify whether it relates to global or local estimates, and, if local, state the relevant tonnages, which should be relevant to technical and economic evaluation. Documentation should include assumptions made and the procedures used.			The boundaries between the Main, South/Moleon and New South pegmatite domains are marked and could be explained by structural discontinuities (e.g., ENE faults between the Main, South and New South groups), which needs to be more accurately addressed. Inferred Mineral Resources reflect widely spaced drilling and infill drilling is recommended to potentially upgrade this category to a higher confidence level.
			These statements of relative accuracy and confidence of the estimate should be compared with production data, where available.			There is no production data for Moblan.

	Criteria		JORC Code explanation			Commentary
	Mineral Resource estimate for conversion to Ore Reserves		Description of the Mineral Resource estimate used as a basis for the conversion to an Ore Reserve. Clear statement as to whether the Mineral Resources are reported additional to, or inclusive of, the Ore Reserves.			The 2025 Mineral Resource estimate (MRE) is the basis for the Ore Reserve Estimate and was prepared or supervised by Marina Iund, P.Geo., Alain Carrier, M.Sc., P.Geo., Simon Boudreau, P. Eng., all of InnovExplo inc.; and Ryan Cunningham, P.Eng. of Primero Group Americas and are defined as Independent and Competent Persons in accordance with the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the “JORC Code”). The effective date of the 2025 MRE is 12 June 2025.   The Mineral Resources reported are inclusive of the Ore Reserves.
	Site visits		Comment on any site visits undertaken by the Competent Person and the outcome of those visits. If no site visits have been undertaken indicate why this is the case.			Mr Tony O’Connell, the Competent Person for the Ore Reserve estimate, visited Sayona’s operational site, North American Lithium (NAL) between September 10th and 12th 2024. No site visit was undertaken to Moblan, due to its greenfield status and relative remoteness.

	Criteria		JORC Code explanation			Commentary
	Study status		The type and level of study undertaken to enable Mineral Resources to be converted to Ore Reserves. The Code requires that a study to at least Pre-Feasibility Study level has been undertaken to convert Mineral Resources to Ore Reserves. Such studies will have been carried out and will have determined a mine plan that is technically achievable and economically viable, and that material Modifying Factors have been considered.			A Definitive Feasibility Study (DFS) was completed in 2024 and demonstrated that the Moblan Project was technically and economically feasible. An updated Life of Mine (LOM) plan, based on 2025 MRE geological model and the DFS has been developed which forms the basis of this Ore Reserve estimate. The updated life of mine plan incorporates detailed pit designs, dump designs, mining schedules, geotechnical analysis, hydrological assessments and metallurgical assumptions.
	Cut-off parameters		The basis of the cut-off grade(s) or quality parameters applied.			The breakeven cut-off grade (COG) is calculated considering costs for processing, G&A, and other costs related to concentrate production and transport. Based on a 6.0% Li2O concentrate selling price of $1,250 USD/t, the COG would be 0.29% Li2O.  However, due to metallurgical recovery limitations, a metallurgical COG of 0.60% Li2O was selected based on iterative analysis and to assure a feed grade that allows a sufficient metallurgical recovery to produce the required spodumene concentrate grade.

Mining factors or assumptions

The method and assumptions used as reported in the Pre-Feasibility or Feasibility Study to convert the Mineral Resource to an Ore Reserve (i.e. either by application of appropriate factors by optimisation or by preliminary or detailed design). The choice, nature and appropriateness of the selected mining method(s) and other mining parameters including associated design issues such as pre-strip, access, etc. The assumptions made regarding geotechnical parameters (eg pit slopes, stope sizes, etc), grade control and pre-production drilling. The major assumptions made and Mineral Resource model used for pit and stope optimisation (if appropriate). The mining dilution factors used. The mining recovery factors used. Any minimum mining widths used. The manner in which Inferred Mineral Resources are utilised in mining studies and the sensitivity of the outcome to their inclusion. The infrastructure requirements of the selected mining methods.

The Moblan orebody is a near-surface pegmatite deposit. The DFS determined the most optimal mining method is open cut mining utilising conventional truck and shovel mining equipment. The modifying factors applied in the DFS and updated LOM are based on optimised operating practices developed from mining operations with similar mining conditions. Reconciliations of operations at Sayona’s NAL operations have been incorporated where appropriate. The equipment selected for mining are 120t to 200t size excavators loading 90t capacity rigid off-highway haul trucks, supported by ancillary equipment including graders, water carts and dozers. All waste and ore is drilled and blasted where practical. The resource model was re-blocked from cells of 1.25m x 1.25m x 1.25m to generate a mining model of block sizes 5m x 5m x 5m to account for the SMU (selective mining unit) of the chosen mining equipment size and simulate mining recovery and dilution for converting the Mineral Resource to Ore Reserve. Pit optimisation was applied to the mining model and the revenue factor 0.75 shell was chosen to guide the detailed pit design. The detailed pit design includes the practical geometry required in a mine, including pit access and haulage ramps to all pit benches, pit slope designs, benching configurations, smoothed pit walls and catch benches. Major dual lane haul roads have been designed at 10% maximum gradient at a width of 28m, whilst single lane accesses in the lower benches of the pit have been designed at a minimum width of 20m. Geotechnical and hydrogeological studies were carried out in 2022 and 2023.  The DFS used the following design geotechnical parameters for the practical pit design.

	Criteria		JORC Code explanation			Commentary

	Criteria		JORC Code explanation			Commentary
	Metallurgical factors or assumptions		The metallurgical process proposed and the appropriateness of that process to the style of mineralisation. Whether the metallurgical process is well-tested technology or novel in nature. The nature, amount and representativeness of metallurgical test work undertaken, the nature of the metallurgical domaining applied and the corresponding metallurgical recovery factors applied. Any assumptions or allowances made for deleterious elements. The existence of any bulk sample or pilot scale test work and the degree to which such samples are considered representative of the orebody as a whole. For minerals that are defined by a specification, has the ore reserve estimation been based on the appropriate mineralogy to meet the specifications?			Several metallurgical test work programs have been undertaken to develop and optimise the process flowsheet and design of the process plant. The ROM ore is subject to a variety of processing methods once feed material enters the crusher. The design of the spodumene concentrator process plant is based on a commercially proven DMS and floatation circuit technology.   Metallurgical recovery varies according to the grade of the feed ore and the spodumene concentrate grade produced. Across the life-of-mine an average metallurgical recovery of 74.7% was applied for the production of a 6.0% spodumene concentrate. The majority of the mined ore will be placed onto ROM stockpiles, where it will then be blended with other Moblan ores to provide a consistent feed grade of Li2O and Fe2O3.   Knowledge gained from Sayona operating its nearby NAL spodumene concentrator has also contributed to fine tuning of the ROM rehandling practices and metallurgical assumptions.
	Environmental		The status of studies of potential environmental impacts of the mining and processing operation. Details of waste rock characterisation and the consideration of potential sites, status of design options considered and, where applicable, the status of approvals for process residue storage and waste dumps should be reported.			The Environmental and Social Impact Assessment (‘ESIA’) for the project is currently progressing. The ESIA will identify all impacts and propose mitigation or remediation measures before final approvals for the project is made. Detailed assessments of the environmental impact of the proposed operation were carried out as part of the DFS. Numerous measures, including the delayal of Lac Moblan decommissioning, storage of any potentially acid-forming (PAF) material internally within dumps, etc. were proposed in the DFS to reduce the potential impact of the operation.
	Infrastructure		The existence of appropriate infrastructure: availability of land for plant development, power, water, transportation (particularly for bulk commodities), labour, accommodation; or the ease with which the infrastructure can be provided, or accessed.			The DFS developed a detailed site infrastructure plan incorporating the waste rock storage and tailing storage facilities, process plant, power and communications supply and distribution, workshops, warehouse, offices and administration buildings, water management infrastructure and accommodation facilities.

	Criteria		JORC Code explanation			Commentary
	Costs		The derivation of, or assumptions made, regarding projected capital costs in the study. The methodology used to estimate operating costs. Allowances made for the content of deleterious elements. The source of exchange rates used in the study. Derivation of transportation charges. The basis for forecasting or source of treatment and refining charges, penalties for failure to meet specification, etc. The allowances made for royalties payable, both Government and private.			The Project requires approximately CAD1,156M  of capital over the life of mine, predominantly for the construction of the concentrator, tailings storage facility, mining infrastructure and accommodation facilities.   Closure and decommissioning costs of CAD81M were applied at various years across the life-of-mine for the closure of key infrastructure items such as tailings storage facilities and waste storage areas.   Operating costs are based on the DFS estimates with adjustments from the reconciliation of recent operating costs at Sayona’s NAL operation. Transportation, treatment and refining charges are derived from the current charges Sayona incurs at its NAL operation, adjusted to 6.0% spodumene concentrate.   Substantial general and administrative (G&A) costs, compiled in the DFS, have been applied to account for the operation of a remote fly- in-fly out or drive-in/drive-out operation with significant accommodation and camping facilities provided. Moblan is subject to a 1.5 to 2.5% Gross Overriding Revenue (“GOR”) royalty payable to Lithium Royalty Corporation (“LRC”).
	Revenue Factors		The derivation of, or assumptions made regarding revenue factors including head grade, metal or commodity price(s) exchange rates, transportation and treatment charges, penalties, net smelter returns, etc. The derivation of assumptions made of metal or commodity price(s), for the principal metals, minerals and co-products.			Benchmark Minerals Intelligence (BMI) prepared a Lithium Forecast Report for Sayona Quebec dated Quarter 1, 2025. The annual benchmark spodumene 6.0% sales prices as shown in the below chart were applied to the 6.0% spodumene concentrate that Moblan will produce.     A foreign exchange rate of $1.35 CAD to $1.00 USD was assumed to convert USD market price forecasts.

	Criteria		JORC Code explanation			Commentary
	Market Assessment		The demand, supply and stock situation for the particular commodity, consumption trends and factors likely to affect supply and demand into the future. A customer and competitor analysis along with the identification of likely market windows for the product. Price and volume forecasts and the basis for these forecasts. For industrial minerals the customer specification, testing and acceptance requirements prior to a supply contract.			The BMI Q1 2025 Lithium Forecast Report identified the current oversupply which is depressing prices will become a deficit in 2029 and beyond as shown in the chart below.

	Criteria		JORC Code explanation			Commentary
	Social		The status of agreements with key stakeholders and matters leading to social licence to operate.			A consultation process is in place with the regions First Nations peoples (Cree), and the general perception of the Project from the side of Cree communities and other non-Cree stakeholders is positive, with no indications of actual or potential conflict envisaged.
	Other		To the extent relevant, the impact of the following on the project and/or on the estimation and classification of the Ore Reserves: Any identified material naturally occurring risks. The status of material legal agreements and marketing arrangements. The status of governmental agreements and approvals critical to the viability of the project, such as mineral tenement status, and government and statutory approvals. There must be reasonable grounds to expect that all necessary Government approvals will be received within the timeframes anticipated in the Pre-Feasibility or Feasibility study. Highlight and discuss the materiality of any unresolved matter that is dependent on a third party on which extraction of the reserve is contingent.			The Moblan Lithium project, is in the Nord-du-Québec administrative region on lands subject to the James Bay and Northern Quebec Agreement (“JBNQA”). The JBNQA governs the environmental and social protection regimes for the James Bay and Nunavik regions. Moblan lies on Category III lands, which are public lands in the domain of the State. Category III lands include all the lands within the territory covered by the JBNQA that are located south of the 55th parallel and are not included in other land categories. Category III lands are managed by the Eeyou Istchee James Bay Regional Government. The Cree Nation has exclusive trapping rights on these lands, as well as certain non-exclusive hunting and fishing rights. The Cree Nation also benefits from an environmental and social protection regime that includes, among other things, the obligation for proponents to carry out an ESIA for mining projects and the obligation to consult with First Nations communities. All exploration activities conducted at Moblan comply with the relevant environmental permitting requirements. It has been assumed that all required permits, including the decommissioning of Lac Moblan, will be obtained to allow for the development of the project. The competent person is unaware of any environmental liabilities, permitting issues or municipal social issues concerning the Moblan deposit.
	Classification		The basis for the classification of the Ore Reserves into varying confidence categories. Whether the result appropriately reflects the Competent Person’s view of the deposit. The proportion of Probable Ore Reserves that have been derived from Measured Mineral Resources (if any).			The Measured and Indicated Resources that underpin the positive cash flow model for the Life of Mine have been converted to Ore Reserves after the application of the modifying factors. No Inferred Resources have been included as Ore Reserves. The economic Measured Resource have been converted to Proven Reserves and the economic Indicated Resource is converted to Probable Reserves. Across the deposit, 85.0% of Measured Mineral Resources have been converted to Proven Ore Reserves and 42.1% of Indicated Mineral Resources have been converted to probable Ore Reserves.
	Audits or reviews		The results of any audits or reviews of Ore Reserve estimates			The major contributing items to the Ore Reserve estimate, including the pit optimisation, detailed pit designs, scheduling and financial modelling, have been internally reviewed by Optimal Mining Solutions and also by Sayona where appropriate. No issues were identified as part of the review process.

	Criteria		JORC Code explanation			Commentary
	Discussion of relative accuracy/ confidence		Where appropriate a statement of the relative accuracy and confidence level in the Ore Reserve estimate using an approach or procedure deemed appropriate by the Competent Person. For example, the application of statistical or geostatistical procedures to quantify the relative accuracy of the reserve within stated confidence limits, or, if such an approach is not deemed appropriate, a qualitative discussion of the factors which could affect the relative accuracy and confidence of the estimate. The statement should specify whether it relates to global or local estimates, and, if local, state the relevant tonnages, which should be relevant to technical and economic evaluation. Documentation should include assumptions made and the procedures used. Accuracy and confidence discussions should extend to specific discussions of any applied Modifying Factors that may have a material impact on Ore Reserve viability, or for which there are remaining areas of uncertainty at the current study stage. It is recognised that this may not be possible or appropriate in all circumstances. These statements of relative accuracy and confidence of the estimate should be compared with production data, where available.			The level of confidence in the 2025 Ore Reserve estimate is high and is deemed within an acceptable level of confidence by the Competent Person . The MRE Competent Persons state that “The uncertainty of the geological domains (the Main, South, Moleon and New South lithium pegmatite dyke swarms) is considered low.”   The mine plan and subsequent life-of-mine schedule has been developed at DFS level of detail, with a level of accuracy generally within ±10-15%. Detailed planning, including haulage modelling, has been undertaken as part of the scheduling works. The DFS provided the majority of the infrastructure requirements, operational parameters, capital cost and operating costs. While uncertainties remain due to factors such as market fluctuations, unforeseen geological variations and operational challenges, the DFS provides a robust basis for an accurate estimate of the project.   There is no production data for Moblan.

	SAYONA MINING LIMITED
Date: August 26, 2025	By:		/s/ Dylan Roberts
			Name: Dylan Roberts
			Title: Company Secretary and General Counsel