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MacDonald Mines Commences Exploration Program at Charlevoix Silica Property in Quebec

MacDonald Mines Exploration Ltd. (TSX VENTURE:BMK) ("MacDonald Mines", "MacDonald" or the "Company") announces that it has mobilized personnel and equipment and has initiated an exploration program at its Charlevoix Silica Property located approximately 42 kilometres north of Baie-Saint-Paul, on the north shore of the Saint Lawrence River, in the Province of Quebec.

The Charlevoix Silica Property appears to be underlain by quartzite sequences with multiple quartzite outcroppings that may host an extension of Rogue's Silicon Ridge high-purity quartzite horizons. The current exploration program will sample and describe, where exposed, the quartzite units on the property to further define their chemical and geometrical attributes.

Quentin Yarie, MacDonald's President and CEO commented: "MacDonald Mines is focused on safe-jurisdiction, infrastructure-rich projects. The Charlevoix Property is located in an environment proven to host high-purity silica resources. It is close to roads and infrastructure, and represents a great potential to increase shareholder value. The Sitec mine, only 15 kilometres away, has been operating for over fifty years and Rogue's Silicon Ridge Project is adjacent to our property. We anticipate that the quartzite units of the Charlevoix Silica Property, interpreted to be part of the same regional quartz unit, will be similar to the high purity quartzite units found at the Sitec mine and those defined by Rogue1."

Charlevoix Silica Property Details

The geology on the Charlevoix Silica Property is similar to the geology of Rogue's Silicon Ridge Project and of the Sitec mine. Regionally, a large quartzite unit occurs along a SW NE trend that passes through the Sitec mine, Rogue's Silicon Ridge Project and the Charlevoix Silica Property. The quartzite unit is formed of a series of quartzite sub-units that occur as folded layers, pods and lenses in the high-grade metamorphic rocks of the Grenville Province.

The Silicon Ridge Project hosts a measured and indicated resource of 9.7 Mt at 98.6% SiO2 and an inferred resource of 1.6 Mt at 98.56% SiO2 (NI 43-101 Technical report on the Silicon Ridge Mineral Resources Quebec - Canada, June 7, 2016).

The Sitec Silica Mine ("Sitec") is located within 15 kilometres of the Charlevoix Silica Property and has been in production for more than 50 years. It produces approximately 250,000 tonnes of silica a year and has an estimated future mine life of over 20 years. Silica from the Sitec Mine is shipped to plants in Bécancour, Chicoutimi and the United States. Silica produced at Sitec is used at foundries and glass factories as well as in the production of solar panels and high-tech components.

Silica Uses and Markets

Quartzite commonly contains a high silica content with minimal impurities, typically less than 1%. Commonly referred to as high-purity quartz, the silica produced from this type of quartz is highly sought after as a component for the production of semiconductors, LCD displays, fuse quartz tubing, microelectronics, solar silicon applications and Silicon-Anode Lithium batteries.

CRU's, Silicon Metal Report, published on December 30, 2015, reports "the rise in global silicon demand is expected to be considerably higher, as consumption will continue to benefit from favourable developments in all of the major end-use sectors, most importantly the solar industry. The resumption of double-digit growth in solar-related consumption, together with continued solid gains in demand from the silicone industry, will be instrumental in fuelling a projected increase in total silicon consumption over the next five years at a rate that will be nearly double that of the world economy as a whole."

Private Placement Financing

MacDonald Mines closed the first tranche of the non-brokered private placement offering announced on December 19, 2016 for gross proceeds of $545,579.93 (January 3, 2017 news release) and may close additional tranches of the $1,000,000 Offering in the coming weeks.

Funds raised from the financing will be used to undertake exploration programs on the Charlevoix Silica Property as well as the Wawa-Holdsworth Project, and for general working capital purposes.

The Offering is subject to the final approval of the TSX Venture Exchange.

Qualified Person

Quentin Yarie, P Geo. is the qualified person responsible for preparing, supervising and approving the scientific and technical content of this news release.

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