The Sirmac Property is composed of 15 claims covering a total area of 645 ha. It is located on NTS sheet 32J11 in the province of Québec, approximately 180 kilometres North-West of Chibougamau. A forestry road accessible to vehicles passes next to the property. In addition, a power line runs along its Eastern boundary.


The Sirmac property is located in the North-East part of the Superior geological province, in the Frotet-Evans volcano-sedimentary belt. Four types of rocks outcrop on the Sirmac property: quartz-biotite-hornblende schists, amphilolized flows or mafic sills, syenite pluton, and pegmatites, of which some are spodumene-bearing. The main foliation strikes E-W and has a shallow dip. More than twelve granitic pegmatite dykes, whose thickness ranges from 1 to 100 m, have been identified. All of these cut the host schists and generally strike NNW-SSE (315°/350°), with a sub-vertical dip and steep contacts with host rocks.


The type of deposit associated with the lithium mineralization of the Sirmac property is a granitic, rare element-bearing pegmatite due to the presence of spodumene. In dyke #5—the known deposit—spodumene crystals are euhedral, with color and size varying from white to greenish- or grayish-white and from 1 to 30 cm in size, with an average size of 10 cm. The amount of spodumene found in the pegmatite ranges from 5 to 30% in volume. In general, the crystals are slightly altered and frequently contain rounded inclusions of quartz. A historical resource estimate has been performed on the deposit by Wrightbar Mines Ltd. in 1994, with results indicating a total of 314,328 tonnes grading 2.04% Li2O.


Nemaska is planning the construction of a permanent access road to connect the property to the forestry road passing nearby. Vehicles and heavy equipment will be able to use this road to reach the property.
A mechanical trenching campaign is planned on the numerous pegmatite intrusions identified on surface in order to obtain a better understanding of the geology. A diamond drilling campaign will follow to confirm the continuity at depth of some pegmatite dykes.

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