May 12, 2016 - Vancouver, British Columbia –Cornerstone Metals Inc. (TSX-V – CCC) (“Cornerstone” or the “Company”) announces that further to its news release dated April 28, 2016 on the signing of a non-binding Letter of Intent on the Topley Property, management has completed its due diligence and the Company has decided not to proceed with the implementation of an option agreement on the Topley Property.

ON BEHALF OF CORNERSTONE METALS INC.

per:

“Paul Cowley”

CEO & President

For further information, please contact:

Paul Cowley

Tel: 604-340-7711

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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.