Integra Gold Receives Underground Exploration Permits for Triangle Zone, Commences Surface Preparation and Provides Project Permitting Overview

VANCOUVER, BC--(Marketwired - May 27, 2015) - Integra Gold Corp. (TSX VENTURE: ICG)(OTCQX: ICGQF)

• Provincial Certificate of Authorization received for underground exploration decline development at Triangle Zone

• Initial surface work in preparation for the Triangle Zone underground exploration program now underway, as a precursor to the exploration decline development

• Confirmation that a separate Federal Environmental Assessment/Environmental Impact Study for the Lamaque South Project not required as a result of permits, studies and approvals currently in place at Lamaque North (Mill Property)

• Consultation process with key stakeholders indicates strong support for the Lamaque South project

• Conversion of exploration claim status into mining leases underway at Triangle Zone

• Additional Certificates of Authorization submitted

Integra Gold Corp. (TSX VENTURE: ICG)(OTCQX: ICGQF) ("Integra" or the "Company") is pleased to announce that it has received the Certificate of Authorization ("CA") necessary for underground decline development work at the Triangle Zone ("Triangle"), situated on its Lamaque South Property ("Lamaque"). The permit, issued by The Québec Minister of Sustainable Development, Environment and the Fight against Climate Change ("MSDEFCC") allows the Company to begin surface preparation work, build all required infrastructure and commence underground decline access development required to complete a bulk sample. In conjunction with the CA, the Company has also received approval from the Québec Ministry of Forests, Wildlife and Parks to clear the land area around the Triangle Zone decline access and begin road construction.

The Company has submitted the Triangle Zone reclamation plan to the Ministry of Energy and Natural Resources ("MERN") and is awaiting approval which it anticipates will be received in the next 30 days. During the MERN review process, the Company is permitted to begin initial surface work at the site in preparation for underground exploration and bulk sampling. Once the MERN approval is received, the Company will be required to post a bond in the amount of $665,000 and will then be in a position to commence rock excavation and underground decline development.

Triangle Zone Surface Preparation

The Company has now commenced surface preparation at the Triangle Zone. Foresterie Jaski Inc. of Barraute, Québec has been contracted to clear the land in the vicinity of the Triangle Zone and begin site development. Once the site has been cleared, construction of a road from the Triangle Zone to the Sigma Mill will commence. The Company will also start preparing the area directly adjacent to the proposed decline for the additional site infrastructure required to support the underground exploration decline development. A bidding process is underway for construction of an electric line, surface preparation, road building, portal excavation, garage and office/dry construction as well as underground development. The proposed decline and building infrastructure for the Triangle Zone are located 400m west of the centre of the Triangle Zone, on an elevated outcropping rock surface. Condemnation drilling in the vicinity of the proposed decline location was successfully completed in 2014. Drilling activities over the summer will continue to test the western extensions of the Triangle Zone, which could potentially impact the design/location of underground infrastructure but will have no impact on the placement of surface infrastructure, including the portal for the exploration decline.

"With the largest and most time consuming project permitting hurdles behind us we can now begin work to advance the project through this next phase of underground exploration," commented Company President and CEO, Stephen de Jong. "Our team continues to be rewarded for a proactive approach taken in dealing with the various federal, provincial and community level stakeholders. The Province of Québec continues to prove itself as one of the top mining jurisdictions in the world and we are grateful for the support shown by the various government organizations involved in all aspects of permitting."

Lamaque Project Permitting Overview

The primary permits required for underground exploration and eventual production at Lamaque are as follows:

• Federal Environmental Assessment -- Completed Q3 2014

• Provincial Environmental Assessment -- N/A (projected daily throughput below threshold)

• Triangle Zone Provincial CA for Underground Exploration -- Completed Q2 2015

• Triangle Zone Provincial CA for Underground Production -- Expected Q2 2016

• Parallel Zone Provincial CA for Underground Exploration/Production -- Expected Q3 2015

• Milling/Tailings/Waste Rock Provincial CA -- Completed Q1 2015

• Conversion of Triangle Zone exploration claims to mining leases -- Expected Q2 2016

• Public consultation (Val d'Or Community, First Nations, other stakeholders) -- Phase 1 Completed Q1 2015

Environmental Assessment / Environmental Impact Study: Federal and Provincial Process Completed

In September 2014, the Company was informed by the Canadian Environmental Assessment Agency ("CEAA") that it will not be required to file a Federal Environmental Assessment ("EA"), also known as an Environmental Impact Study, for the combined Sigma-Lamaque Mine and Mill Complex (the "Mill Property") and the Lamaque South Project.

The Company submitted a preliminary project description to the CEAA to ensure compliance with the Canadian Environmental Assessment Act of 2012. Upon review of the preliminary project description, the CEAA concluded that an EA is not required by Integra since the contemplated future development of Lamaque does not exceed any of the Regulations Designating Physical Activities that would prompt an EA. This is due to the fact that surface disturbance at Integra's Lamaque South Project accounts for only a small fraction of the combined land package (Lamaque South and the Mill Property) following Integra's acquisition of the neighbouring Mill Property (see Company press releases dated September 3, 2014 and October 9, 2014).

The Company is not required to complete an EA at the Québec provincial level as planned production is less than the provincial threshold of 2,000 tonnes per day ("tpd").

Provincial CAs for Underground Exploration and Mining at the Parallel Zone

Using existing CAs which were obtained through the Sigma Mill acquisition, the Company can now commence underground exploration at the Parallel Zone as the first 400 m (of 700 m total) of proposed underground development required to access the Parallel Zone is situated on the Sigma Mill property. In late 2014 the Company was informed by the MSDEFCC that underground exploration/production work at the Parallel Zone could proceed with only a small modification to an existing CA which was obtained with the Sigma Mill acquisition. Documentation was submitted to MSDEFCC in January 2015 and the Company anticipates that a modified CA will be received in July 2015. The modified CA will allow underground exploration, bulk sampling and production to proceed.

Multiple CAs Obtained with the Sigma Mill Acquisition

All existing CAs associated with the Mill Property have been transferred into Integra's name and are in good standing with the Québec provincial government including permits for milling, tailings (including raising of tailings dams) and waste rock.

The Company has also resumed dewatering work at the historic Sigma Mine, with the water effluent being monitored as required by the MERN, meetings all standards and guidelines

Conversion of Exploration Claims to Mining Leases: 80% of Mining Leases in Place

In addition to project permitting, the Company has commenced the process of converting its remaining exploration claims on the Triangle Zone into mining leases. Over 80% of the ground at Lamaque South, including the entire Parallel Zone and a small portion of the Triangle Zone where planned infrastructure is located, is registered as grandfathered mining concessions, thus allowing for future mining.

The process of converting exploration claims to mining leases commenced in November 2013 and is ongoing. The claims were surveyed according to specifications provided by the Québec General Surveyor Office. To complete the conversion process, a feasibility study is required which will be submitted upon completion of underground exploration and bulk sampling. The Company does not anticipate that the conversion process will be an impediment to advancing the project.

First Nations

Since early 2014, the Company has organized three meetings with the Lac Simon Algonquin Anishinabeg Council ("Lac Simon") to present and discuss the Lamaque South project and has received a positive reception. The Lac Simon community of 1,500 is located approximately 32 km southeast of Val-d'Or. Both Lac Simon and Integra continue to work together to finalize a Memorandum of Understanding regarding future work on the site. In addition, a member of the Lac Simon community will soon be added to Integra's Monitoring Committee.

Public Consultation Process

During the fall of 2013, Integra launched an extensive multi-phase community information and consultation program for the Lamaque South project. Phase 1 of the process included 26 meetings with previously identified stakeholders in order to review any concerns regarding the project. Through these meetings, the Company engaged with more than 400 community members in the Val d'Or area. The Company's exploration and development plans were reviewed at meetings and all stakeholders submitted their views and concerns with the Company's future plans. Integra has committed to reviewing these concerns and has since incorporated them into its future development plans.

Phase II of the information and consultation program began in June 2014. This phase was concluded by the creation of an independent consultation committee, tasked to further investigate and discuss specific impacts of the Lamaque South Project on the community. The 20 members of the committee represent the project's stakeholders and come from diverse backgrounds in the Abitibi area. In order to aid the committee to better understand the project and to familiarize themselves with mining activity, Integra organized an underground tour of a local mining operation. To date, the committee has met a total of 8 times and has reviewed specific topics of concern with various project specialists, relating to:

• Noise and dust control;
• Vibration from blasting;
• Road traffic and safety;
• Environmental impact and tailings;
• Site reclamation; and
• Economic impact.

Through all of the Consultation Committee meetings Integra has constantly reiterated its commitment to actively engage with the community through this next phase of the project and to mitigate any negative impact which may arise during the exploration, development and future operation of the Lamaque South project. Mitigation measures provided by the Company in response to topics discussed during the Consultation Committee program were unanimously accepted by consultation committee members. A report detailing the information and consultation process is available on the Company's website.

Phase III of the information and consultation program commenced during the first week of May 2015. A Monitoring Committee will be formed on May 27, 2015 as required by Québec regulation. The Monitoring Committee will promote discussions on project development-related topics and will ensure that Integra fulfills its stated commitments.

Project and Company Profile

Integra's Lamaque South Gold Project and Sigma-Lamaque Mill and Mine Complex are located directly east of the City of Val-d'Or along the prolific Abitibi Greenstone belt in the Province of Québec, Canada, approximately 550 km northwest of Montréal. Québec is rated one of the best mining jurisdictions in the world. Infrastructure, human resources and mining expertise are readily available in the region.

The Company's primary focus is on exploring and subsequently developing, subject to further underground exploration, its high-grade Lamaque South gold project. The Lamaque South property is divided into three clusters, the North, South and West cluster. The primary targets are the high-grade Parallel Zone in the North Cluster and the Triangle Zone in the South Cluster. The recently acquired Sigma Mill, located 1 kilometer from the Parallel Zone and 3 kilometres from the Triangle Zone, is a fully-permitted, 2,200 ton per day mill and tailings facility. The Sigma-Lamaque Mill and Mine Complex include the historic Sigma and Lamaque Mines which operated for 75 and 52 years respectively and produced more than 9 million ounces of gold in total.

Qualified Person

The Lamaque South exploration project and Sigma-Lamaque Mill and Mine Complex, jointly known as the Lamaque project, are under the direct supervision of Hervé Thiboutot, Eng. and Senior Vice-President of the Company, Langis St-Pierre, Chief Operating Officer, Jacques Simoneau, Exploration Manager and P. Geo., and Francois Chabot, Eng., Operations and Engineering Manager of the Company. Mr. Chabot is a Qualified Persons (QP's) as defined by the National Instrument 43-and has approved the scientific and technical content of this release.

ON BEHALF OF THE BOARD OF DIRECTORS

Stephen de Jong
CEO & President

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 news release.

Cautionary Note Regarding Forward-Looking Statements: Certain disclosures in this release constitute forward-looking statements, including timing of completion of an updated resource estimate, timing of completion of an updated PEA and completion of the Sigma-Lamaque transaction. In making the forward-looking statements in this release, the Company has applied certain factors and assumptions that are based on the Company's current beliefs as well as assumptions made by and information currently available to the Company, including that the Company is able to obtain any government or other regulatory approvals, that the Company is able to procure personnel, equipment and supplies required for its exploration and development activities in sufficient quantities and on a timely basis and that actual results are consistent with management's expectations. Although the Company considers these assumptions to be reasonable based on information currently available to it, they may prove to be incorrect, and the forward-looking statements in this release are subject to numerous risks, uncertainties and other factors that may cause future results to differ materially from those expressed or implied in such forward-looking statements. Such risk factors include, among others, those matters identified in its continuous disclosure filings, including its most recently filed MD&A. Readers are cautioned not to place undue reliance on forward-looking statements. The Company does not intend, and expressly disclaims any intention or obligation to, update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.