Skip to main content

enCore Energy Corp.

For the period ended Dec 31, 2023. Filed Mar 28, 2024.

View on SEC.gov

About this filing

The yearly report of certain Canadian companies, filed under a joint US and Canadian system. It is the main yearly account these companies give US investors, largely as filed in Canada.

FY2023 · Filed Mar 28, 2024

Use the contents to explore the available documents and sections.

EU$0.63-0.2%Stored close · as of Nov 6, 2026
See the whole filing, with its images and exhibits
Contents

EX-99.1 · Sample Preparation, Analyses and Security

Sample Preparation, Analyses and Security

The majority of the sample data available for the evaluation of resources for the Project is the historic geophysical log data. The original geophysical logs have been preserved and were reviewed by the authors.

With respect to historic core handling procedures, written procedures for core handling and sample analysis were available along with the original core data records and assay sheets. The cores were split through the zones of interest determined by the geophysical logs and scanning of the cores with a scintillometer. All the samples were assayed using either a Beta Gamma Scaler or an X-ray fluorescence spectrometer at the mine site. Quality control of the on-site assay equipment was provided through an independent laboratory, Hazen Research, which completed fluorometric analysis of select samples including many of the higher grade samples. Original assay sheets were available for 32 of the 35 cores holes.

The cores were donated to the USGS Core Research Center (CRC) located at the Denver Federal Center in Lakewood, Colorado. The author, Beahm, visited the CRC on May 7, 2012 and reviewed the cores and selected 20 samples from core holes geographically distributed within the Project. The selected samples were sealed in plastic sample bags and labeled by hole, depth, and original sample number. A record of this information was also created. On the same day the samples taken the author were shipped by Federal Express to Intermountain Labs (IML) in Sheridan, Wyoming for assay. IML confirmed delivery with a chain of custody by noon the following day. IML is a certified laboratory. Results of the confirmatory assays are provided in Section 12.

In addition to being able to examine the cores at the CRC, the author was able to observe how the cores were preserved. Each half foot of core was sealed in plastic. The bags were labeled for each sample with hole number and depth and stored in core boxes each containing approximately 10 feet of core. The core boxes were also labeled as to hole number and depth. Lost core intervals were marked with wooden blocks which recorded the lost interval. In many of the mineralized zones the bulk of the core was consumed by metallurgical testing. For these portions of the core, approximately 100 grams of prepared sample was preserved in a re-sealable envelope. The envelopes were labeled with hole number and sample number. All sample numbers were unique.

Note that the availability of cores at the CRC can be searched on their website (https://www.usgs.gov/coreresearch-center). When doing this the core intervals which contained the mineralized zones are not listed. Special permission is needed to examine the cores in their “Hot Room” and access to this portion of the cores required knowledge of the specific zones of interest and the respective hole and core box number.

In the authors’ opinion, the sample preparation, security, and analytical procedures are reliable and adequate.

The author has reviewed the historic procedures followed by the previous operator of the project, Conoco Minerals, including procedures for rotary and core drilling, geophysical logging and log interpretation, sampling, and assays. In addition, the author has reviewed and verified the work product that was developed for the project including the original geophysical and lithologic logs, sampling records, and original core assay records. It is the author’s opinion that the procedures, practices, and analytical equipment utilized and/or employed on the Project were consistent with the general industry standards and practices at that time. The author further concludes that the data utilized in this report is accurate and reliable for the purposes of this report.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.