PRESS RELEASES

MGX Minerals Completes TDEM Geophysical Survey at Salinitas Lithium Project - Salinas Grande Salar, Argentina

VANCOUVER, BRITISH COLUMBIA / August 13, 2018 / MGX Minerals Inc. (“MGX” or the “Company”) (CSE: XMG / OTCQB: MGXMF / FKT: 1MG) is pleased to report completion of the previously announced Time Domain Electromagnetic (TDEM) survey at the Salinitas lithium brine project (the “Project”) located in the Salinas Grande Salar of northwest Argentina. The TDEM geophysical survey was conducted across 52 stations at 500 meter totaling approximately 26 kilometers. Data compilation is underway and interpretation is expected to begin shortly. Based on interpretation of the TDEM data, the Company is now preparing to carry out trenching as well as an auger drilling program to test for shallow, near surface brines that contain anomalous concentrations of lithium and other elements correlated with geophysics in preparation for definition of drill targets.

About the Salinitas Lithium Brine Project
The Salinitas tenements are located in the lithium triangle at the Salar de Salinas Grandes, in the Province of Salta. The 4,308 hectare contiguous land package resides in the Puna region of northwest Argentina near the border of Chile, an area renowned for its lithium- and potassium-rich brine resources. MGX has partnered with A.I.S. Resources (TSX.V: AIS) on the Project and is currently earning an undivided 80% interest by incurring total exploration expenditures of at least US$1.2 million by May 31, 2020 and by making payments totaling US$3.2 million which are primarily due at that time.

Figure 1. TDEM Stations at Salinitas Brine Project
MGXMinerals8132018

Rapid Lithium Brine Extraction Technology
MGX has developed a rapid lithium extraction technology eliminating or greatly reducing the physical footprint and investment in large, multi-phase, lake sized, lined evaporation ponds, as well as enhancing the quality of extraction and recovery across a complex range of brines as compared with traditional solar evaporation. This technology is applicable to petrolithium (oil and gas wastewater), natural brine, and other brine sources such as lithium-rich mine and industrial plant wastewater. The technology was recently chosen as winner of the Base and Specialty Metals Industry Leadership Award at the 2018 S&P Global Platts Global Metals Awards, held in London in May (see press release dated May 18, 2018).

Qualified Person
Andris Kikauka (P. Geo.), Vice President of Exploration for MGX Minerals, has prepared, reviewed and approved the scientific and technical information in this press release. Mr. Kikauka is a non-independent Qualified Person within the meaning of National Instrument 43-101 Standards.

About MGX Minerals
MGX Minerals is a diversified Canadian resource company with interests in advanced material and energy assets throughout North America.

Forward-Looking Statements
This press release contains forward-looking information or forward-looking statements (collectively "forward-looking information") within the meaning of applicable securities laws. Forward-looking information is typically identified by words such as: "believe", "expect", "anticipate", "intend", "estimate", "potentially" and similar expressions, or are those, which, by their nature, refer to future events. The Company cautions investors that any forward-looking information provided by the Company is not a guarantee of future results or performance, and that actual results may differ materially from those in forward-looking information as a result of various factors. The reader is referred to the Company's public filings for a more complete discussion of such risk factors and their potential effects which may be accessed through the Company's profile on SEDAR at www.sedar.com.

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