Luna Gold announces full process commissioning and commencement of gold
production at its Aurizona Gold Project

VANCOUVER, May 21 /CNW/ - Luna Gold Corp. (TSXV-LGC) ("Luna" or the "Company") is pleased to announce that commissioning of the Aurizona gravity circuit, as described in our press release of March 1 2010, has been completed and gold for refining is being produced from that part of the plant. The carbon-in-leach ("CIL") plant and ancillary facilities are also substantially completed, including duty performance testing. The complete plant is expected to pass to operations, for full process commissioning, early next week. Work continues on the 69kV power line with expected completion in June. Meanwhile, the plant will continue to operate with the Company's diesel generators.

Luna's CEO, Jim Bahan, comments, "The significant milestone of gold production has been achieved at Aurizona. We are very pleased at the quick evolution of Luna Gold from an exploration company to producer status. Site preparation of Aurizona began in August 2009 and 9 months later we were pouring gold. We look forward to full commercial production in the near future. The milling plant is already working close to feasibility study expectations despite having only two of the three ball mills in operation. The prospects are good for a significant increase in the plant throughput rate once the plant has been fully commissioned and optimized. As of today, over 600 ounces of gold have been produced."

Photographs of construction and production activities are taken at regular intervals and may be viewed on the Company's website at http://www.lunagold.com/s/Building_Aurizona.asp.

About Luna Gold Corp.

Luna is a mineral exploration and development company engaged in the acquisition, exploration, and development of gold resources and advanced stage gold exploration projects in Brazil. The Company is currently commissioning its Aurizona gold project in Maranhão, Brazil.

On behalf of the Board of Directors

LUNA GOLD CORP.

Jim Bahan - CEO

Website: www.lunagold.com

NEITHER 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.

Titus Haggan Ph.D., EurGeol Certified Professional Geologist No. 746, Luna's Brazil Exploration Manager is the Qualified Person as defined under National Instrument 43-101 who has reviewed the technical disclosure in this press release.

Forward-Looking Statements

All statements other than statements of historical fact included in this news release are forward-looking information that involve various risks and uncertainties, including, without limitation, statements regarding the future plans and expectations of the Company in relation to its Arizona gold project. These statements are identified through the words "plan" and "expected" (or derivations thereof) in this news release and are based on the best estimates of management as of the date hereof and on certain necessary assumptions. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's plans or expectations include: delays in completion of the CIL plant and other mine construction delays; risk inherent to early stage mining production; availability of capital and financing; general economic, market or business conditions; regulatory changes; timeliness of government or regulatory approvals and other risks detailed from time to time in the filings made by the Company with Canadian securities regulators. The Company expressly disclaims any intention or obligation to update or revise any forward-looking statements or information whether as a result of new information, future events or otherwise, except as otherwise required by applicable securities legislation.

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