PHNM.V · 2017-03-29 12:00:00

Cornerstone Metals Appoints Metallurgical Advisor

Management Changes Metallurgy & Processing

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March 29, 2017 - Vancouver, British Columbia –Cornerstone Metals Inc. (TSX-V – CCC)

(“Cornerstone” o r t h e “Company”) is pleased to announce the appointment of Jacques

McMullen, P.Eng., to its Advisory Board, effective immediately. Mr. McMullen holds a

Bachelor Degree in Applied Sciences, Metallurgical Engineering (BASc) and a Master Degree of

Applied Sciences in Mineral Processing (MASc.) both from Laval University, Quebec. He spent

the initial 15 years of his career with LAC Minerals where he g ained operations’ management

experience to eventually be invo lved with the optimization of a ll Milling Operations of the

Company. Joining Barrick Gold through the take-over of LAC, Mr. McMullen rose to Senior

Vice President roles during his 18 year operating career with B arrick. While having been a

Director on various Boards, namely Orvana Minerals, Minera S.A. , Highland Gold and currently

NewCastle Gold, he also presently acts as corporate technical a dvisor to Detour Gold

Corporation. Through his technical exposure to a very large num ber of mining assets over the

years, in operations, development and management of capital pro jects, he can identify key value

drivers and gaps, and generate turn-around strategies to create shareholder value and catalyze

business growth.

About Cornerstone Metals Inc.

Cornerstone’s objective is to advance exploration/development stage copper and precious metals

properties to production in the Am ericas. The Company’s Managem ent and Board Core

Competence is in exploration, permitting, development, construc tion, and operation of mining

projects.

Cornerstone owns 100% (subject to 1.5% NSR) of the West Jerome 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

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For further information, please contact:

Paul Cowley

Tel: 604-340-7711

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.