
American Lithium Corp. (TSX-V:LI) (OTCQX:AMLIF) (Frankfurt:5LA1) is pleased to announce an updated Mineral Resource Estimate for the Tonopah Lithium Claims project, located in the Esmerelda lithium district northwest of Tonopah, Nevada. The updated MRE has successfully converted Indicated Resources to the Measured category, increasing Measured Resources 47% from the previous 2023 MRE at TLC. The resource block model has been further refined, increasing the confidence of the TLC resource. The vast majority of resources used in the 2024 PEA Mine Plan are now within the more reliable Measured Resource footprint.
The updated MRE was completed by Stantec Consulting Services Inc. of Salt Lake City, UT and is based on an additional 44 drill holes drilled since the previously filed January 2023 MRE.
Highlights: (see Table 1 February 2025 TLC MRE & Table 2 Previous January 2023 TLC MRE, below)
Link to: Figure 1 – TLC Project Updated Mineral Resource Block Outline and Drill Hole Location Map (also see below)
American Lithium Interim CEO, Alex Tsakumis states: “We are very pleased with the newly established and upgraded Measured Resource footprint at TLC as it not only increases the resource confidence level in the Measured category but also represents the core of the 2024 PEA Mine Plan. Our focus remains on diligently and prudently advancing our projects as we prepare for an anticipated recovery in the battery metals market.”
Table 1 – Updated TLC Mineral Resource Estimate (February 2025)
Cutoff | Volume | Tonnes | Li | Million Tonnes (Mt) | ||
Li (ppm) | (Mm3) | (Mt) | (ppm) | Li | Li2CO3 | LiOH.H2O |
Measured | ||||||
500 | 803 | 1,365 | 849 | 1.16 | 6.17 | 7.02 |
600 | 645 | 1,097 | 923 | 1.01 | 5.37 | 6.11 |
800 | 396 | 673 | 1,065 | 0.72 | 3.83 | 4.36 |
1,000 | 217 | 369 | 1,208 | 0.45 | 2.39 | 2.72 |
1,200 | 100 | 170 | 1,345 | 0.23 | 1.22 | 1.39 |
Indicated | ||||||
500 | 325 | 553 | 808 | 0.45 | 2.39 | 2.72 |
600 | 238 | 405 | 903 | 0.37 | 1.97 | 2.24 |
800 | 141 | 240 | 1,050 | 0.25 | 1.33 | 1.51 |
1,000 | 70 | 119 | 1,212 | 0.14 | 0.74 | 0.85 |
1,200 | 32 | 54 | 1,365 | 0.07 | 0.37 | 0.42 |
Measured plus Indicated | ||||||
500 | 1,128 | 1,918 | 839 | 1.61 | 8.56 | 9.74 |
600 | 883 | 1,502 | 919 | 1.38 | 7.34 | 8.35 |
800 | 537 | 913 | 1,062 | 0.97 | 5.16 | 5.87 |
1,000 | 287 | 488 | 1,209 | 0.59 | 3.13 | 3.57 |
1,200 | 132 | 224 | 1,339 | 0.30 | 1.59 | 1.81 |
Inferred | ||||||
500 | 203 | 345 | 780 | 0.27 | 1.44 | 1.63 |
600 | 139 | 236 | 887 | 0.21 | 1.12 | 1.27 |
800 | 83 | 141 | 1,022 | 0.14 | 0.74 | 0.85 |
1,000 | 39 | 66 | 1,169 | 0.08 | 0.43 | 0.48 |
1,200 | 13 | 22 | 1,326 | 0.03 | 0.16 | 0.18 |
Table 2 – Previous TLC Mineral Resource Estimate (January 2023)
Cutoff | Volume | Tonnes | Li | Million Tonnes (Mt) | ||
Li (ppm) | (Mm3) | (Mt) | (ppm) | Li | Li2CO3 | LiOH.H2O |
Measured | ||||||
500 | 506 | 860 | 924 | 0.79 | 4.2 | 4.78 |
600 | 416 | 707 | 1006 | 0.71 | 3.78 | 4.3 |
800 | 283 | 481 | 1153 | 0.55 | 2.93 | 3.33 |
1000 | 203 | 345 | 1255 | 0.43 | 2.29 | 2.6 |
1200 | 104 | 177 | 1401 | 0.25 | 1.33 | 1.51 |
Indicated | ||||||
500 | 701 | 1192 | 727 | 0.87 | 4.63 | 5.26 |
600 | 438 | 745 | 835 | 0.62 | 3.3 | 3.75 |
800 | 218 | 371 | 987 | 0.37 | 1.97 | 2.24 |
1000 | 80 | 136 | 1148 | 0.16 | 0.85 | 0.97 |
1200 | 22 | 37 | 1328 | 0.05 | 0.27 | 0.3 |
Measured plus Indicated | ||||||
500 | 1207 | 2052 | 809 | 1.66 | 8.83 | 10.04 |
600 | 854 | 1452 | 916 | 1.33 | 7.08 | 8.05 |
800 | 501 | 852 | 1080 | 0.92 | 4.9 | 5.57 |
1000 | 283 | 481 | 1227 | 0.59 | 3.14 | 3.57 |
1200 | 126 | 214 | 1402 | 0.3 | 1.6 | 1.81 |
Inferred | ||||||
500 | 286 | 486 | 713 | 0.35 | 1.86 | 2.12 |
600 | 173 | 294 | 827 | 0.24 | 1.28 | 1.45 |
800 | 77 | 131 | 995 | 0.13 | 0.69 | 0.79 |
1000 | 31 | 53 | 1151 | 0.06 | 0.32 | 0.36 |
1200 | 8 | 14 | 1315 | 0.02 | 0.11 | 0.12 |
Figure 1 – TLC Project Updated Mineral Resource Block Outline and Drill Hole Location Map
Mineral Resource Estimation Calculation Methodology
The geologic model used for reporting of lithium resources was developed using Hexagon Mining’s geological modelling and mine planning software, MinePlan version 16.1.1. The geologic model from which lithium resources are reported is a 3D block model developed using the Nevada State Plane Central Zone NAD83 coordinate system and U.S. customary units. Block size is 50ft-X, 50ft-Y and 20ft-Z. Modeling method and approach is similar to that described in the prior Technical Report (Loveday and Kester, 2023) but with a re-interpretation of geologic controls on mineralization using the additional exploration drilling and geophysical data.
A base case lithium resource cut-off grade has been calculated based on the economics of a medium size (100 Mtpa) run-of-mine (ROM) surface mining operation that does not require blasting. Processing of the mineralized material would be onsite extracting lithium from claystone using an acid digestion method. Resources are reported from within an economic pit shell at 45-degree constant slope using Hexagon mining Pseudoflow algorithm. Maximum pit depth is limited to 1,000 feet (304.8 m) below surface. No underground mining is considered.
The following mining, processing, royalty, and recovery costs, in US$, were used to derive a base case cut-off grade to produce a lithium carbonate (Li2CO3) equivalent product:
Revenue from a lithium carbonate product is estimated to be US$20,000/tonne for the cutoff grade calculation. Using the above inputs and Li2CO3:Li ratio of 5.32, a base case cut-off grade for lithium is estimated to be 500 ppm, rounded from 501 ppm. The base case cut-off grade of 500 ppm lithium is the same as the prior (Loveday and Kester, 2023) Mineral Resource Estimate using the same cost assumptions as the prior MRE.
The updated base case MRE represents an increase of 47% Li2CO3 equivalent tonnes in the Measured Category, a decrease of 48% for the Indicated category when compared to the prior MRE (both at 500 ppm Li cutoff). Inferred Li2CO3 equivalent resources have decreased by 22% percent when compared to the prior MRE for the base case.
Resource Estimate Parameters:
Quality Assurance, Quality Control and Data Verification
Diamond drilling was conducted by First Drilling of Montrose, Colorado using large diameter, PQ-size, drilling entirely vertical holes in 2022. In 2023 eight (8) additional diamond cores were drilled by IG Drilling
of Payson, Utah using drill rig CS-14 using either a PQ or HQ diameter drill bit. Drill core samples are nominally 5-foot (1.53 m) length and are cut longitudinally, and one half of the HQ-size core, or one quarter of PQ size core is placed in sealed bags and shipped to analytical laboratories.
Reverse Circulation (RC) drilling was conducted by Harris Exploration Drilling and Associates Inc., of Fallon, Nevada with 5.5-inch diameter face centred bit on vertical drill holes. Sampling was conducted using a riffle splitter or a cyclone splitter depending on the moisture content of the sampled material. Sampling was conducted over 5-foot (1.52m) intervals with individual samples placed in sealed bags and transported to the respective analytical labs. In 2023 three (3) RC holes were
drilled by Harris’s Canterra Rig using 5.5” diameter.
Samples were shipped to American Assay Laboratories (AAL) in Sparks, Nevada for sample preparation, processing and ICP-MS multi-element analysis. Pulps and rejects are returned and retained by the Company. AAL is an ISO/IEC 17025 certified assay laboratory. The QA/QC program includes a comprehensive analytical quality assurance and control routine comprising the systematic use of Company inserted standards, blanks and field duplicate samples, and internal laboratory QA/QC standard operating procedures. Downhole lengths (depths) for vertical drill holes are considered accurate true depth intersections for the essentially flat-lying, to gently dipping TLC host stratigraphy.
Mineral Resource Estimate Preparation
The Mineral Resource estimate has been prepared by Joan Kester, PG of Stantec Consulting Services Inc. in conformity with CIM “Estimation of Mineral Resource and Mineral Reserves Best Practices” guidelines and are reported in accordance with the Canadian Securities Administrators NI 43-101. Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no certainty that any mineral resource will be converted into mineral reserve.
Qualified Persons
Ms. Joan Kester, PG and Ms. Mariea Kartick, P. Geo. of Stantec Consulting Services Inc. are Qualified Persons as defined by National Instrument 43-101 Standards of Disclosure for Mineral Projects, have prepared or supervised the preparation of, or have reviewed and approved, the scientific and technical data pertaining to the Mineral Resource estimates contained in this release, and will be preparing the NI-43-101 Technical Report for filing on SEDAR within 45 days.
Mr. Ted O’Connor, P.Geo., Executive Vice President of American Lithium, and a Qualified Person as defined by National Instrument 43-101 Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information contained in this news release.
About American Lithium
American Lithium is developing two of the world’s largest, advanced-stage lithium projects, along with the largest undeveloped uranium project in Latin America. They include the TLC claystone lithium project in Nevada, the Falchani hard rock lithium project and the Macusani uranium deposit, both in southern Peru. All three projects have been through robust preliminary economic assessments, exhibit significant expansion potential and enjoy strong community support.
For more information, please contact the Company at info@americanlithiumcorp.com or visit our website at www.americanlithiumcorp.com.
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