DENVER, COLORADO -- (Marketwired) -- 07/23/13

Geovic Mining Corp. ("Geovic" or "the Company") (TSX:GMC)(OTCBB:GVCM), on behalf of its 60.5%-owned subsidiary Geovic Cameroon Plc ("Geovic Cameroon"), is pleased to announce that it has agreed to the terms and conditions of a Definitive Agreement ("DA") with Jiangxi Rare Metals Tungsten Holdings Group Company Ltd ("JXTC") of Nanchang, Jiangxi Province, China. JXTC is a state owned large scale industrial enterprise with significant mining and industrial operations in cobalt, copper, tungsten, and other rare metals. The terms and conditions of the DA were agreed amongst JXTC, Societe National d'Investissement du Cameroun (SNI), the National Investment Corporation of Cameroon that owns or represents 39.5% of Geovic Cameroon, Geovic, Geovic Ltd and Geovic Cameroon. Geovic Cameroon plans to develop the Nkamouna cobalt-nickel-manganese Project (the "Project") in Cameroon, Africa. The DA anticipates the completion of a strategic investment by JXTC in the Project.

The transaction contemplated by the DA establishes JXTC's intent to acquire 60.5% of the existing shares of Geovic Cameroon pursuant to the execution of a Share Purchase Agreement between JXTC and Geovic. In addition to acquiring 60.5% interest in Geovic Cameroon, JXTC would also secure 100% of the mixed cobalt-nickel sulphide product (MSP) to be produced by the Project through a Long-Term arm's length Off-Take Agreement with Geovic Cameroon.

Geovic CEO Michael Mason said "This Definitive Agreement represents significant progress advancing the Nkamouna Project toward construction and into production. Construction could commence as soon as the project financing is arranged, bringing much needed jobs and economic diversity and development to Cameroon." Mason added; "The biggest winners here are Geovic Cameroon, a Cameroon corporation, and the people of Cameroon, who shall experience Cameroon's first major mining project transitioning from a vision to reality."

Geovic Mining Background

Geovic is a U.S.-based corporation whose principal asset is 60.5% indirect ownership of a significant cobalt-nickel-manganese deposit in the Republic of Cameroon, Africa. Additional Company initiatives and project information may be found on the websites www.sedar.com, and www.sec.gov. For more information, please go to www.geovic.net.

On behalf of the Board

Michael T. Mason, CEO

Cautionary Note Regarding Forward Looking Statements

Statements contained in this press release that are not historical facts are forward-looking statements (within the meaning of Canadian securities legislation) that involve risks and uncertainties. Forward-looking statements include, but are not limited to, statements with respect to future economic conditions and project operating results, the ability to complete financing, predicted capital costs and operating costs, commodity prices, production rates, recovery rates, and the results of the feasibility study. In certain cases, forward-looking statements can be identified by the use of words such as "proposes", "expects", "is expected", "scheduled", "estimated", "intends", or variations of such words and phrases or statements that certain actions, events or results "will" occur. Forward-looking statements 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 the forward-looking statements. Such risks and other factors include, among others, risks related to exploration activities and operations; actual results of current exploration activities; conclusions of economic evaluations; predicted capital costs, operating costs, the ability to obtain financing and to market the products, production rates; changes in project parameters as plans continue to be refined; future prices of metals; possible variations in ore reserves, grades, or recovery rates; failure of plant, equipment or processes to operate as anticipated; accidents, labor disputes, other risks of the mining industry, delays in obtaining governmental approvals or financing or in the completion of development or construction activities and other factors as described in detail in the Company's Annual Report on Form 10-K, quarterly reports on Form 10-Q, and other filings with the U.S. Securities and Exchange Commission and Canadian securities regulatory authorities. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. The forward-looking statements in this press release speak only as of the date hereof. The Company does not undertake any obligation to release publicly any revisions to these forward-looking statements to reflect events or circumstances after the date hereof to reflect the occurrence of unanticipated events.

Contacts:
Geovic Mining Corp.
Michael Mason
Chairman and CEO
Direct: (303) 476-6455
mt_mason@msn.com
www.geovic.net