Integra Gold Announces PEA Results: Pre-Tax IRR of 51%, NPV (5%) of CAD$146.0 M (After-Tax $88.5 M) and Peak Annual Production of 143,300 Gold Ounces

• South Triangle: 6,966 m in 13 holes
• Parallel: 12,589 m in 40 holes
• Triangle: 9,890 m in 26 holes

The 2013 South Triangle drill program aimed at extending the Triangle Zone to the south and at depth. Drilling intersected high grade mineralization to a depth of over 1,000 m vertical as well as approximately 175 m down-dip of the southern extent of the Triangle Zone resource limit. There are currently four drills on the Triangle Zone which, apart from completing definition drilling, will step out and drill this untested 175 m wide target zone as well as exploring for near surface strike extensions.

Drilling not included at the Parallel and Triangle Zones consisted of both infill and extension drilling. The results for the Parallel Zone drilling were disclosed in early 2014 and confirm continuity of the mineralized zones, which the Company hopes will assist in converting further ounces from the inferred to indicated category. The infill and extension drilling at the Triangle Zone started in January 2014 and no results have been disclosed to date. An updated resource estimate expected in the second half of 2014 will focus on building resources in order to increase the mine life beyond the current 4.25 years.

Mining

The Lamaque Project is designed as a mechanized underground mine which utilizes both conventional room and pillar and long-hole mining methods. An administration and mine service hub would be located on Highway 117, the Trans-Canada Highway. The service hub would be served by a 25 KV power line, natural gas and municipal services. There will be two production centers, each with a ramp to access resources (the "North Ramp" and the "South Ramp") and will include basic surface infrastructure. Common infrastructure will be used to treat and manage water from underground operations.

The North Ramp will be located approximately 1 km from the service hub and will reach a vertical depth of 615 m to initially access the Parallel and Fortune zones. Should the Company outline resources at its No. 5 Plug and No. 3 Mine targets, it is anticipated these zones would also be accessed through the North Ramp.

The South Ramp will be located approximately 3 km from the service hub and would reach a vertical depth of 620 m. The South Ramp would access the Triangle Zone and the No. 4 Plug. The South Ramp area would be connected to an existing gravel road a few hundred meters to the south, allowing for two entry points to the site.

The mining methods used in the PEA were selected according to vein geometry and common practices for comparable mining operations in the region, an area with an extensive history of underground mining. For mineralized zones dipping less than 45 degrees, a room and pillar mining method is proposed. Mechanized sub-level development in mineralized zones will be completed at 60 m intervals along the vein, rooms will be 6 m in width and a performance rate of 18 t/man shift was used in the mine plan. Typical stopes will have a height of 2 m and external dilution of 5% (at 0.0 g/t Au) was included with a mining recovery of 85%.

For mineralized zones dipping more than 45 degrees, a long-hole mining method will be used with mechanized sub-level development completed at 18 m intervals along the vein. As outlined in the PEA, typical stopes will have a thickness of 3 m and a length of 20 m. An average of 20% (at 0.0 g/t Au) dilution has been applied when stope thickness is greater than 3 m, and 35% for stopes less than 3 m. Mucking will be done longitudinally using remote controlled scoops and the mining recovery is evaluated to be 85%. Rock-fill will be used in long-hole stopes for the North Ramp.

Mineralized material and waste will be transported to surface using 45T trucks. The cost for material handling is estimated to range from $7.91/tonne to $11.91/tonne. During the mine life, development would generate approximately 14% of the mineralization tonnage, room and pillar mining 36% and long-hole mining, 50%.

The following table summarizes development and mined tonnes for the Lamaque Project:




For the economic evaluation, it was assumed that a down payment of 25% would be paid on mining equipment with the balance paid over 5 years at a 6% interest rate. Residual value was limited to 25% to 35% depending on years of use.

Operating Costs

Operating costs are summarized below. Given that this PEA presents a toll milling scenario and the Company has the ability to process mineralized material recovered during the pre-production and development stage, revenue generated from these ounces has been included in forecasted cash flows. A total of approximately 28,000 ounces are anticipated to be produced during year 2 of the pre-production phase.

Cash Cost Per Ounce and Per Tonne Summary



Metallurgy & Processing

The LOM average tonnage is approximately 1,275 tonnes per day, and varies between 1,050 and 1,650 tonnes per day depending on the period (based on 312 operation days/year). This production rate is consistent with potential milling options in the immediate area, and may change during actual production depending on which processing facility is used. This includes resource extraction from both ramps thereby minimizing undue pressure put on any one point of production and reducing potential bottlenecks while mining.

Recent metallurgical testing completed in 2014 tested Lamaque mineralized material using a variety of flowsheets consistent with those of mills in the immediate area (see Company press release dated February 25, 2014). Although metallurgical testing indicated an increase of recoveries when going from a 48 hour leach time to a 96 hour leach time, the Company has used recoveries in line with the top end of the 48 hour leach time in order to stay consistent with the flowsheets of mills in the vicinity.

Using this testwork the Company was able to identify which mills are best suited for material from the Lamaque Project, which has assisted in the determination of the $45.69 per tonne milling and transportation assumption.

For the PEA the following gold recoveries were assumed:

• Parallel Zone: 97%
• Triangle Zone: 90%
• Fortune Zone: 95%
• No. 4 Plug: 86%

Infrastructure and Capital Costs

The Lamaque Project, located within 3 km of the city of Val-d'Or, Québec, a mining community of over 35,000 people, benefits from world-class infrastructure. As important as the physical infrastructure in the Val-d'Or region, is the high level of underground mining expertise readily available in the region. The Company believes its advantageous location has the potential to positively impact the long term viability and attractiveness of employment at the Lamaque Project, given that employees and contractors could work in the community they live in, a rare opportunity in the mining industry.

The Lamaque Project is located within 200 m of the Trans-Canada Highway, with all services readily available at site. The Company's existing office is located between the highway and the project, on a property owned by the Company, and there is sufficient land to accommodate the proposed development needs of the project including the proposed service hub.

The plan as outlined in the PEA will have minimal impact on the community as there are no homes, businesses, or other infrastructure where the proposed mining will take place.

The pre-production costs are estimated at $69.2 million, net of production revenue received during the second year of the pre-production period ($37.4 million). Pre-production capital costs include surface infrastructure (site preparation, roads, electric and water lines), installation of modular buildings for offices and garages (mechanical and electrical shops, stockroom), mining infrastructure at the North and South sites, mobile equipment, development and capitalized operating costs, owner costs (closure costs in line with required financial guarantees, Company staff and indirect costs) as summarized in the following tables. Pre-production capital costs are minimal given that there is no need to build processing and tailings facilities, and that mineralization is spatially close to surface. Pre-production is anticipated to take 2 years with the majority of proceeds used for ramp construction and for sufficient development of mineralized zones, or working faces, to conduct mining at the proposed mining rate and mill throughput. Ramp construction would commence in the second quarter of pre-production at the Parallel Zone, where there is a 15 m vertical rock face outcrop located at surface providing an ideal location to construct the portal. Ramp construction at the Triangle Zone would commence in the third quarter of pre-production, where overburden is estimated to be between 1 and 5 m in depth.

Pre-Production Capital Costs Estimate (estimated 2 years)



*Given the Company anticipates having access to milling options throughout the pre-production stage it has included revenue from expected production during development

The Company is also studying a scenario which would involve delaying the development of the South Ramp by 12-18 months in order to reduce up-front capital cost requirements and utilize cash flow from the North Ramp to fund development of the South Ramp. It is estimated this could reduce pre-production capital requirements by as much as $20 to $25 M although further work is required prior to the Company being able to provide a detailed number.

Sustaining Capital Costs Estimate (Production Years 1-5)




Community Relations

The Company is committed to taking a proactive approach to its public consultation process and has been working diligently to identify as many stakeholders as possible in the Val-d'Or region. Over the past six months more than 25 private and public meetings have been held with stakeholders.

On January 28, 2013, a public information meeting was held in Val-d'Or to present the status of the project, discuss the potential impact and benefits for the Val-d'Or community, and gather insight and feedback from residents. Over 250 residents and stakeholders attended this meeting. Management was encouraged by the feedback received and the readily apparent level of community support for the Lamaque Project. Integra remains committed to working with the citizens of Val-d'Or to build a plan for the Lamaque Project that will maximize benefits for both the community and the Company's shareholders.

Information regarding public meetings and project updates will be published on the Company's website as it becomes available.

Environmental and Permitting

A baseline environmental study was completed by AMEC in December 2013. The North Ramp is located in an area previously impacted by the tailings of the Lamaque Mine and the Company does not anticipate any significant impact on wildlife. For the South Ramp, the baseline study completed by AMEC did not identify major issues associated with wildlife.

No geochemical characterization of mineralized or waste material is available for the Lamaque Project at the moment. The Company will be commencing these studies in 2014 and does not anticipate any major issues due to the similar nature of the Lamaque Project's mineralization to the adjacent Sigma and Lamaque Mines, which were known for their clean ore and tailings.

The Lamaque Project is not subject to provincial impact assessment study as planned production falls below the 2,000 tonnes per day threshold outlined in the new mining law. At this time the Company does not yet know if the Lamaque Project will be subject to a federal impact assessment study.

Reclamation costs were estimated at $2.4 M. Reclamation work covers waste and stockpiles of mineralized material, water pond, underground openings, site installation, engineering, contingency (20%) and post operation site monitoring.

Project Economics and Sensitivity

Key economic performance metrics are summarized in the following table on a pre-tax basis. A range of gold prices (USD$) are shown for sensitivity purposes only.


Gold Price Sensitivity




The sensitivity analysis presented below demonstrates that even with an increase of 30% of capital costs or operating costs, the Lamaque Project still has the potential to present a positive economic outcome.


Exchange Rate, Capital Costs, Operating Costs Sensitivity Analysis (Pre-Tax)



Discount Rate versus Base Case Pre-Tax NPV Sensitivity Analysis (Pre-Tax)




Opportunities & Risks

Opportunities to improve the Lamaque Project economics include the following:

• The Company is studying a scenario which would involve delaying the development of the South Ramp by 12-18 months, in order to reduce up-front capital cost requirements and utilize cash flow from the North Ramp to fund development of the South Ramp. It is estimated this could reduce pre-production capital requirements by as much as $20 to $25 M.
• Acquisition of a mill instead of toll milling would likely reduce LOM operating costs and allow the Company greater security in meeting its future milling requirements.
• Potential to utilize contract mining in order to reduce up-front capital requirements.
• Production outlined in the PEA is limited to a vertical depth of 620 m at the Triangle Zone. A 2013 drill program intersected multiple high-grade zones below this level, to depths of up to 1,000 m vertical. The Triangle Zone remains open to the south, east and west.
• Drilling at the South Triangle Zone intersected 13.89 g/t Au over 7.0 m, approximately 175 m down-dip from the Triangle Zone resource estimate (see Company press release dated November 18, 2013). The ground in between the Triangle Zone and this 2013 discovery has not been tested and will be drilled within the next 4-6 weeks.
• The PEA is based on an April 24, 2013, mineral resource database cut-off date and does not include subsequent drilling, both infill and expansion, of approximately 29,500 m completed to the end of February 2014, while drilling is still ongoing with 4 rigs.
• The PEA does not include resources from the No. 6 Vein and the Sixteen Zone.
• Significant mineralization has been identified at the No. 3 Mine and the No. 5 Plug targets. The Company expects to have resource estimates completed for those zones in the second half of 2014. Should a resource be defined at these targets they could be potentially mined from the North Ramp infrastructure.
• Potential for further improvement in gold recoveries based on results of recent metallurgical test work.
• Potential for reduced milling costs through negotiations with toll mills

Risks requiring mitigation strategies include:

• Management of construction/engineering and procurement schedules, costs, and cost containment.
• Operating risks related to recruitment and training of underground workforce, specifically room and pillar miners.
• Permitting risks.
• Crown pillar thickness and stability evaluation through geo-mechanics characterization and stability analysis.

Recommendations and Next Steps

The following recommendations have been given as the next steps of the Lamaque Project. The Company aims to achieve these objectives in 2014.

1. Continue exploration and definition drilling at Parallel, Triangle and Fortune zones in 2014 in order to upgrade as many resources as possible from the inferred resource category to the indicated resource category, while continuing to increase the resource base laterally and at depth.
2. Update the resource estimations for all deposits included in the PEA and evaluate the impact on the Lamaque Project's economics using all new information generated since the latest database cut-off (since April 24, 2013).
3. Complete exploration drilling and perform additional resource estimations on two of the Lamaque Project's advanced exploration targets, the No. 3 Mine and No. 5 Plug, for integration into the future economic evaluations on the project.
4. Commence a prefeasibility study which will include:

• Hydrogeology study;
• Rock mass characterization and stope design;
• Crown pillar stability analysis;
• Revised mining plan using new resources;
• Trade-off analysis:

- Re-scheduling development of the 2 ramps to limit capital requirement;
- Energy alternative for underground air heating;
- Mineralized material and waste handling alternatives; and
- Access, possibly via shaft sinking, to deeper part of the Triangle Zone and No. 4 Plug.

• Finalize connecting scenario to Hydro-Quebec grid;
• Engineering for surface installation, electricity and mechanics installations;
• Engineering for water treatment and management facilities; and
• Updated economic evaluation of capital expenditures and operating costs.
  
  5. Initiate and complete the permitting process for an underground exploration program. A complete prefeasibility study will likely require underground exploration, meaning a significant portion of project permitting will be completed during the prefeasibility stage:

• Apply for Certificate of Authorization;
• Complete application for mining lease for South site (Triangle);
• Mineralization and waste characterization;
• Hydrology study;
• Noise and vibration study; and
• Biology study.
  
  6. Conduct a fourth phase metallurgical study in order to further improve gold recoveries for the Triangle and No. 4 Plug zones.
  
  7. Complete a formal information and consultation process in order to promote social acceptability of the Lamaque Project and development plans.

Qualified Persons

The Lamaque Project is under the direct supervision of Hervé Thiboutot, Eng. Senior Vice-President of the Company, and Francois Chabot, Eng. and Operations and Engineering Manager of the Company. Both Mr. Thiboutot and Mr. Chabot are Qualified Persons ("QP") as defined by National Instrument 43-101.

In addition, each of the individuals listed below are independent QP for the purposes of NI 43-101. All scientific and technical information in this press release in respect of the Lamaque Project or the PEA is based upon information prepared by or under the supervision of those individuals.

For InnovExplo Inc., Sylvie Poirier, Eng. (Mining) and Laurent Roy, Eng. (Mining); for Geologica, Alain-Jean Beauregard, Geol. (Geology) and Daniel Gaudreault, Eng. (Geology); for GeoPointcom, Christian D'Amours, Geol. (Resources); for Amec, Stephan Bergeron, Eng. (Environment); for Golder Associates, James Tod, Eng. (Geo-Mechanics); and for WSP Engineering, Michel Garon, Eng. (Metallurgy).

The Company's QPs have also reviewed the technical content of this press release.

Quality Assurance - Quality Control ("QA/QC")

Thorough QA/QC protocols are followed on the Lamaque Project including insertion of duplicate, blank and standard samples in all drill holes. The core samples are submitted directly to ALS Laboratory Group and Bourlamaque Labs in Val-d'Or for preparation and analysis. Analysis is conducted on 1 assay-ton aliquots. Analysis of Au is performed using fire assay method with atomic absorption finish, with a gravimetric finish completed for samples exceeding 5 g/t Au, or a metallic sieve assay for samples containing visible gold. When available the gravimetric or metallic sieve assay results are used for the reported composite intervals.

Further information about the mineral resource estimate cited in this news release can be found in an NI 43-101 compliant technical report for the project, entitled "2013 NI 43-101 Technical Report on the Lamaque Property", dated November 1, 2013, which is available under the Company's SEDAR profile at www.sedar.com.

ON BEHALF OF THE BOARD OF DIRECTORS

Stephen de Jong, CEO & President

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