Company: FMST
Filing Date: 2025-06-20
Form Type: 20-F
Source: 0001171843-25-004004
Chunk: 70

Company: Foremost Clean Energy Ltd.
Filing Date: 2025-06-20
Form: 20-F
Item: Item 4
Chunk 70
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 density, deposit geometry, likely extensions, and possible interpretation alternatives. For reporting purposes, the Zoro Property inferred mineral resource is tabulated Li2O (%). The Qualified Person is unaware of any known environmental, permitting, legal, title, taxation, socio-economic, marketing, political, or other relevant factors that may negatively affect the economic extraction of the inferred resource.

All data used to estimate the above reported mineral resource estimate, including sampling, analytical, and test data, has been verified by Scott Zelligan, P. Geo., a Qualified Person from the original sources. This includes a site visit to the Zoro Lithium Project, review of previously drilled intervals in person, and a comparison of the drill hole database to drill logs and assay certificates.

Other Modifying Factors

A preliminary metallurgical test was conducted to determine possible concentrate grade recoverable from the Zoro dyke-1 deposit in 2020. Automated mineralogy, coupled with geochemical analyses and mineral chemistry, provide valuable quantitative data that can be used to guide the test work and explain recoveries and potential losses. Spodumene is the primary lithium mineral in the Zoro Property pegmatite and accounts for 96% of the total lithium. Lithium losses due to other than spodumene host minerals will be minimal and favor the project. Furthermore, liberation of spodumene is 88% for the calculated head for a P80 of 600 μm. Therefore, flotation can be conducted at relatively coarse particle size to recover the spodumene. Liberation of gangue minerals including quartz (89%), Na- and K-feldspars (94%), and micas (82%) is very good. These can theoretically be rejected. Preliminary test work, HLS and combined with magnetite separation, tests indicate that it is possible to produce a high-grade (close to 6% Li2O) SC6 lithium concentrate after the rejection of iron silicate minerals. Thus, most of the spodumene should be amenable to recovery by HLS and/or flotation. The mineralogical characteristics of the pegmatite favor the economic potential of the project.

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We contracted XPS Expert Process Solutions (a Glencore company) to develop a process to refine spodumene concentrate (SC6 technical specification) into a saleable battery-grade lithium hydroxide product in the Spring of 2022. Our initial 2020 metallurgical test work, done in conjunction with SGS Canada Inc, indicated that it is possible to