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Cornerstone Metals Inc. Commences Drilling at its Carlin Vanadium Project

Exploration Programs

Press & Analysts Contact:

Stewart Chalmers

H4C Group

+1 818-681-3588

[email protected]

Cornerstone Metals Inc. Commences Drilling at its Carlin Vanadium Project

December 18, 2017 - Vancouver, British Columbia – Cornerstone Metals Inc. (TSX-V –

CCC) ( “Cornerstone” o r t h e “Company”) announces that it has commenced a verification

diamond drilling program on the Carlin Vanadium Project. The go al of the program is to enable

the Company to upgrade the historic resource to a current resource, as well as to provide material

to conduct metallurgical testwork on vanadium recoveries and investigate the presence and grade

of other accompanying elements such as zinc, silver and cobalt.

The 20 vertical hole HQ core program is designed to in-fill the existing 132 hole drill pattern that

currently defines the vanadium deposit, resulting in an improve d drillhole density of

approximately 45m spacing. Cornerstone reports that it has already completed three core holes.

The Carlin Vanadium Project contains one of the United States’ largest known primary deposits

of vanadium, an industrial mineral critical to industries rangi ng from steel to utility scale battery

storage technology. The Company’s analysis illustrates that the Nevada site’s vanadium deposit

features a combination of high-quality grade and unsurpassed accessibility.

“The speed in which the Company has mobilized drill contractors to site – mere days following

receipt of its permit -- is a tribute to the skills of the Corn erstone team and to the conducive

working environment in this regi on,” said Cornerstone President and Chief Executive Officer

Paul Cowley.

In additional news, the Company announces the resignation of Ja son Nickel, P.Eng. from the

board of directors. Mr. Nickel is stepping down to pursue a ful l time operational role with a

production company. The Board thanks Jason for his service to Cornerstone.

About Cornerstone Metals Inc.

Cornerstone’s objective is to advance exploration/development s tage copper, precious and

strategic minerals properties to production in the Americas. Th e Company’s Management and

Board Core Competence is in exploration, permitting, developmen t, construction, and operation

of mining projects.

The Company has an option to earn a 100% interest in the Carlin Vanadium Project, which has

one of the largest known primary vanadium deposits in the U.S.A . The Carlin Vanadium Project

is located in Elko County 22km by road (14 miles) from the town of Carlin, Nevada, and is

comprised of 72 contiguous unpatented mineral claims totaling 4 61 hectares (1,140 acres). The

Carlin Vanadium deposit was discovered by Union Carbide Corp. ( UCC) in the 1960’s, which

completed surface mapping, trenching and 152 rotary drill holes in 11,133m (36,525 feet) of

drilling. The average drill hole spacing was 60m (200ft) apart within the more densely drilled

areas. Drilling indicates a zone o f mineralization approximatel y 55m (180 feet) thick striking

north-south over 1,860m (6,100ft) in length and dipping 5°-30° east and west averaging 760m

(2,500ft) of down dip extent from surface. The mineralized unit is locally exposed on surface,

where it cuts topography, but mostly is found at shallow depths, commonly between 15-60m (50-

200 ft) below surface.  

Cornerstone also owns 100% (subject to 1.5% NSR) of the West Je rome property, near Jerome,

Arizona, on the west side of Freeport McMoRan patented lands. The property, in a Volcanogenic

Massive Sulfide camp, is a high-gr ade, massive sulfide target l ocated 2.4 km south of the past-

producing United Verde (32 million tons grading 4.4% copper, 1.5 oz/t silver and 0.04 oz/t gold).

The West Jerome property has attractive untested drill targets.

ON BEHALF OF CORNERSTONE METALS INC.

per: “Paul Cowley”

CEO & President

Technical disclosure in this news release has been reviewed and approved by Paul Cowley,

P.Geo., a Qualified Person as defined by National Instrument 43-101, and President and CEO of

the Company.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Forward-looking information

Certain statements in this news release constitute "forward-lookin g" statements. These statements relate to future events or th e Company's future

performance and include the Company’s ability to meet the conditio ns required to exercise in full its option to acquire the Car lin Vanadium

project. All such statements involve substantial known and unknown risks, uncertainties and other factors which may cause the a ctual results to

vary from those expressed or implied by such forward-looking statements. Forward-looking statements involve significant risks and uncertainties,

they should not be read as guarantees of future performance or results, and they will not necessarily be accurate indications o f whether or not

such results will be achieved. Actual results could differ materi ally from those anticipated due to a number of factors and ris ks. Although the

forward-looking statements contained in th is news release are based upon what manage ment of the Company believes are reasonable

assumptions on the date of this news release, the Company cannot as sure investors that actual results will be consistent with t hese forward-

looking statements. The forward-looking statements contained in th is press release are made as of the date hereof and the Compa ny disclaims

any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise,

except as required under applicable securities regulations.