News Release 13-05

Vancouver, B.C. May 16, 2013 – Marimaca Copper Corp. (TSX: COP) (“Coro”, the “Company”) is pleased to report that all of the nominees listed in its information circular dated April 1, 2013 were elected as directors of Marimaca Copperat the Company’s annual general and special meeting of shareholders held in Vancouver, Wednesday, May 15, 2013 (the “Meeting”).

The detailed results of the vote by ballot are listed below.

In addition, the Company announces that its shareholders approved a special resolution at the Meeting to alter the Company’s Articles to adopt advance notice provisions for the election of directors. The purpose of the provisions is to provide shareholders, directors and management of the Company with a clear framework for nominating directors of the Company. A copy of the amendment to the Company’s Articles, reflecting the advance notice provisions, will be filed under the Company’s profile at www.sedar.com.

CORO MINING CORP.

“Alan Stephens”

Alan Stephens
President and CEO

About Marimaca Copper Corp.:

The Company was founded with the goal of building a mining company focused on medium-sized base and precious metals deposits in Latin America. The Company intends to achieve this through the exploration for, and acquisition of, projects that can be developed and placed into production. Coro’s properties include the Berta copper development project and the Payen, El Desesperado, Llancahue exploration properties all located in Chile; and the advanced San Jorge copper-gold project, in Argentina.

For further information please visit the Company’s website at www.coromining.com or contact Michael Philpot, Executive Vice-President at (604) 682 5546 or [email protected]

This news release includes certain “forward-looking statements” under applicable Canadian securities legislation. Such forward-looking statements or information, including but not limited to those with respect to the prices of copper, estimated future production, estimated costs of future production, permitting time lines, involve known and unknown risks, uncertainties, and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Such factors include, among others, the actual prices of copper, the factual results of current exploration, development and mining activities, changes in project parameters as plans continue to be evaluated, as well as those factors disclosed in the Company’s documents filed from time to time with the securities regulators in the Provinces of British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, New Brunswick, Nova Scotia, Prince Edward Island and Newfoundland and Labrador.