Company: AXREF
Filing Date: 2025-07-28
Form Type: 20-F
Source: 0001654954-25-008549
Chunk: 37

Company: AMARC RESOURCES LTD
Filing Date: 2025-07-28
Form: 20-F
Item: Item 4
Chunk 37
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, multi-element ICP-MS/AES package. Samples with Cu results > 10,000 ppm were re-analyzed by an ore-grade single element four-acid digestion ICP-AES method. As part of the comprehensive QAQC program, Amarc control samples were inserted in each analytical batch as follows: Analytical standards 1 in 20 regular samples, in-line duplicate samples 1 in 20 regular samples and one coarse blank per hole. The control sample results were then checked to ensure satisfactory QAQC protocols.

Re-assay Analyses : A semi-qualitative, first pass study comparing both the historical assays and 2024 re-assayed data was conducted using: 1. Pearson Correlation Coefficient; 2. Exploratory data; and 3. Multivariant analyses. In general, the correlation analyses indicate highly favorable comparisons for both Cu and Ag, with moderate comparisons for Au and Mo.

In addition, and in support of these statistical studies, a simple‘side-by-side’downhole comparative analysis between both the historical and re-assayed results for 19 drill holes was conducted, where possible matching the most proximally sampled interval. This comparison indicated broad visual associations for: Cu, Au, Ag and Mo.

Overall, these results provide a high level of confidence for the use of the historical assay results in the ongoing exploration of the Greater Empress Area.

Historical Drilling - IKE area: Amarc is not aware of any available and verifiable information on the security, sampling method, sample preparation procedures, analytical methods and analytical laboratories used in nine pre-1981 drill programs. Analytical data from this era was carefully derived from a set of downhole bar charts of Cu and MoS2 hand plotted at 1” = 50’ on cross-sections located in an internal company report, while for three holes Amarc is only aware of composite interval data. The assay results and sample from-two of the three 1981 drill holes were key punched by Amarc from an ARIS Assessment Report (accessed from the BC government files) which states Acme Analytical Laboratories, Vancouver, BC assayed the samples. Also as part of its due diligence, Amarc in 2013 selected 8 samples from the remaining half of the 2011 drill core, added three additional QAQC samples and submitted them to Acme for sample preparation, including the preparation of a second set of pulps from coarse reject splits for analysis.

Historical Drilling - Empress area: Pre