HM Claim

Agnico Eagle Mines Limited




2013 / 10 / 04




2.0% NSR

The HM claim is part of the Macassa mine complex located in Kirkland Lake, Ontario. The Kirkland Lake mining camp has been a prolific gold producer since mining began there in 1915. Gold mineralization at Macassa is found along breaks or faults, in veins as quartz filled fractures, as sulphide rich pyrite zones and as breccias.

The HM claim is an area that hosts the easterly extension of the South Mine Complex (SMC) and is located southeast of the #2 shaft at the Macassa mine. The exploration results from the SMC and HM Claim have identified a significant new find as some of the veins have larger widths and higher grades than the Macassa main zones. Development is underway for a new 4,000 tpd shaft that will support higher levels of production and enable more effective underground exploration east of the SMC. Work on the shaft infrastructure continued to advance in 2022, with final commissioning scheduled for the first quarter of 2023.

Mining at Macassa is conducted primarily with overhand and underhand cut-and-fill methods. The Macassa mill was constructed in 1986, originally designed for throughput of 725 tpd but has been upgraded to handle 2,000 tpd. Ore processing at Macassa starts with crushing and grinding before it enters leach tanks for cyanidation and then flows through a carbon-in-pulp circuit, followed by a Merrill-Crow recovery system. The concentrate is melted in a furnace where doré is poured that typically contains 85% to 88% gold.

Recent Activity

    April 2023

    In January 2023, a major milestone was reached at Macassa when the six millionth ounce of gold was poured since mining first began on the property in 1933. During Q1 2023, the Macassa mine continued to build on productivity gains, supported by improved ventilation, a better adherence to the mining plan, improved maintenance processes, and the commissioning of #4 shaft.

    August 2022

    This year, Agnico Eagle expects to spend approximately $20.3 million to support 99,850 m of capitalized drilling to expand mineral resources and $18.9 million for 89,700 m of exploration drilling to investigate the South Mine Complex and other prospects at the property.

    July 2022

    At Macassa, the focus for the second half of 2022 remained on completing the various infrastructure projects associated with #4 Shaft and ramping up production. All of the critical projects are on track to commission the shaft by the end of 2022.

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