Guyana Frontier Provides Update on Sardine Hill Project

VANCOUVER, May 5 /PRNewswire/ -- Guyana Frontier Mining Corp. ('Guyana Frontier') wishes to inform its shareholders of a title dispute affecting a small portion of the Sardine Hill property ('Sardine Hill') in Guyana, South America. Mariwa Mining Company Inc. ('Mariwa'), a private Guyanese corporation, is the holder of a prospecting licence comprising the Sardine Hill property. Guyana Frontier has an option to acquire all of the issued and outstanding shares of Mariwa by making cash and share payments over a period of five years.

Guyana Frontier subsequently granted an option to Mulgravian Ventures Corporation ('Mulgravian'), a private Canadian corporation, whereby Mulgravian can earn a 51% interest in the shares of Mariwa by completing certain exploration expenditures and completing a private placement with Guyana Frontier.

On March 23, 2011, Guyana Frontier was named as a co-respondent in a lawsuit filed by Ignatius Timmerman ('Timmerman') against the Guyana Geology and Mines Commission (the 'GGMC'), Odinga Lumumba - one of the principals of Mariwa - and Guyana Frontier. Timmerman claims to own the rights to five mining claims (the 'Alleged Claims') totalling approximately 138 acres (55.8 ha.) within the area of the Sardine Hill prospecting licence. The total area of the Sardine Hill prospecting licence is 10,427 acres (4,220 ha.), and the Alleged Claims overlap a portion of the known mineralized area of the Sardine Hill property. Both the GGMC and Mariwa contest the legality of the Timmerman mining claims. In August 2010, the GGMC determined the Timmerman mining claims to be invalid and delivered a cease work order to Timmerman. On March 17, 2011 the GGMC carried out an eviction of Timmerman's mining equipment and personnel from Sardine Hill.

Timmerman subsequently filed a lawsuit against the GGMC, Mariwa and Guyana Frontier on March 23, 2011 seeking an order:

-- confirming his rights to the Alleged Claims;
-- for the return of the mining equipment seized by the GGMC on
March 17, 2011;
-- to deny access to Guyana Frontier to the area of the Alleged
Claims; and
-- for damages 'in excess' of US$5,000 (Guyana$1.0 million)
against the GGMC, and 'in excess' of US$5,000 (Guyana$1.0
million) jointly from Odinga Lumumba and Guyana Frontier - the
amount 'in excess' is unspecified in both cases.

Timmerman was granted an interlocutory injunction denying Guyana Frontier access to the area of the Alleged Claims. The interlocutory injunction was granted on an ex parte basis, and is in effect until the next hearing date. On April 13, 2011, a court hearing was held in Guyana and the matter was adjourned until May 11, 2011.

In April 2011, Guyana Frontier completed a diamond drilling program at Sardine Hill for a total of 3,076 metres in 18 holes, which achieved the planned meterage announced in a news release on December 16, 2010. Complete analytical results will be released after their receipt, compilation and interpretation.

The technical work disclosed in this document was planned and supervised by David Bending, M.Sc., P.Geo., President and CEO of Guyana Frontier, who is a Qualified Person as defined in National Instrument 43-101, and is responsible for all technical information contained in this news release.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

FORWARD LOOKING STATEMENTS

This release contains 'forward-looking statements' within the meaning of applicable Canadian securities legislation, including predictions, projections and forecasts. Forward-looking statements include, but are not limited to, statements that address activities, events or developments that Guyana Frontier expects or anticipates will or may occur in the future, including such things as the results of litigation in respect of the Sardine Hill property, future exploration activities on the Sardine Hill property, the receipt of analytical results of recent exploration activities on the Sardine Hill property, future business strategy, competitive strengths, goals, expansion, growth of Guyana Frontier's businesses, operations, plans and with respect to exploration results generally, the timing and success of exploration activities generally, permitting time lines, government regulation of exploration and mining operations, environmental risks, title disputes or claims, limitations on insurance coverage, timing and possible outcome of any pending litigation and timing and results of future resource estimates or future economic studies.

Often, but not always, forward-looking statements can be identified by the use of words such as 'plans', 'planning', 'planned', 'expects' or 'looking forward', 'does not expect', 'continues', 'scheduled', 'estimates', 'forecasts', 'intends', 'potential', 'anticipates', 'does not anticipate', or 'belief', or describes a 'goal', or variation of such words and phrases or state that certain actions, events or results 'may', 'could', 'would', 'might' or 'will' be taken, occur or be achieved.

Forward-looking statements are based on a number of material factors and assumptions, including, the result of litigation proceedings, that laboratory and other related services are available and perform as contracted, drilling and exploration activities, that contracted parties provide goods and/or services on the agreed timeframes, that equipment necessary for exploration is available as scheduled and does not incur unforeseen break downs, that no labour shortages or delays are incurred, that plant and equipment function as specified, and that no unusual geological or technical problems occur. Forward-looking statements involve known and unknown risks, future events, conditions, uncertainties and other factors which may cause the actual results, performance or achievements to be materially different from any future results, prediction, projection, forecast, performance or achievements expressed or implied by the forward-looking statements. Such factors include, among others, negotiations with parties to litigation matters, the interpretation and actual results of current exploration activities; changes in project parameters as plans continue to be refined; future prices of minerals; possible variations in grade or recovery rates; failure of equipment or processes to operate as anticipated; the failure of contracted parties to perform; labour disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing or in the completion of exploration, as well as those factors disclosed in the company's publicly filed documents. Although Guyana Frontier has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. 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.

Guyana Frontier Mining Corp.

CONTACT:

about Guyana Frontier, please visit our website

at http://www.guyanafrontier.com/ or contact Warren Stanyer, Chairman and COO,

or David Bending, President and CEO, at 604-533-9288.