Vancouver, B.C., May 6, 2014 Exeter Resource Corporation (NYSE-AMEX:XRA, TSX:XRC, Frankfurt:EXB – “Exeter” or the “Company”) is pleased to announce the completion of a new Preliminary Economic Assessment (“PEA”) for its Caspiche gold-copper deposit in northern Chile (the “Caspiche Project” or “Caspiche”). The new PEA reviews a low capex, standalone open pit oxide gold operation, and other staged mine plans that include expanded open pit mining and underground mining of the central higher grade gold copper zone at Caspiche.

Santiago basedengineering consultancies, NCL Ingeniería y Construcción SpA (“NCL”) and Alquimia Conceptos S.A. (“Alquimia”) conducted the new PEA studies to investigate lower capital cost, scalable and flexible mining alternatives at Caspiche.

Summary of PEA options for Caspiche development:

-metal price assumptions US$1,300/oz Au, US$3.00/lb Cu, US$20/oz Ag, some rows and columns may not sum due to rounding.
-See Non-GAAP Measures and Notes for definitions

Exeter’s President/CEO Wendell Zerb states “These new studies confirm the development optionality at Caspiche and the economic strength of the numerous lower capex mining options available. Our standalone surface oxide gold zone with very little waste rock (“a low strip ratio”) and relatively rapid gold recovery characteristics (“fast leach kinetics”) is a logical first step in each development option.

Other PEA options validate the expansion potential at Caspiche, including a mining option that produces life of mine annual gold equivalent production of 344,000 ounces over a 42 year mine life. Operating cash flow and staged capital expenditures significantly reduce the capital and financing risks associated with the new PEA options for Caspiche. Finally, all PEA options require, what we believe are, attainable, substantially reduced power and water quantities from those outlined in previous studies.”

The economic analysis contained in the PEA is considered preliminary in nature. No inferred mineral resources form part of the PEA studies and no mineral reserves for the PEA have been established. Mineral resources are not mineral reserves and have no demonstrated economic viability. There is no certainty that economic forecasts outlined in the PEA will be realized. The PEA and the April 2012 Mineral Resource (as defined herein) may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing or other relevant factors.

Caspiche PEA

The Caspiche Project is located in the Atacama Region of Chile. The property is located 120 km ESE of Copiapó and is situated at the southern end of the Maricunga metallogenic belt, between the undeveloped Cerro Casale gold-copper project 12 km to the south, and the Maricunga Gold Mine (formerly Refugio), 15 km to the north. Access to the project is by 183 km of paved and treated gravel road from Copiapó. A power line servicing the Maricunga Mine (Kinross) passes within 12 km of Caspiche.

The PEA evaluated a new lower capex approach to that considered in the January 2012 pre-feasibility study on Caspiche (refer to the Company’s press release dated January 17, 2012) (the “January 2012 PFS”) for the potential development of the Caspiche gold-copper deposit and assessed options for open pit mining the near surface gold oxide zone, expanded open pit mining into the gold copper zone, and underground mining of the central, higher grade portion of the gold copper sulphide deposit. The PEA studies reviewed numerous mine plan options using measured and indicated mineral resources only. Based on the PEA studies, Exeter believes the Caspiche deposit could be developed using standalone or staged mine plans depending on Company objectives and assumed economic parameters. Three preferred options, based on variable development assumptions, are outlined below:

Option 1: a standalone, 30,000 tonnes per day (“tpd”) heap leach oxide gold project, producing a projected average of 122,000 gold equivalent* ounces (“oz”) annually over a planned 10 year mine life, including 148,000 oz annually in the first five years.

Option 2: a 60,000 tpd open pit, heap leach oxide gold operation followed by expanded open pit mining (27,000 tpd) of the gold copper sulphide zone. Planned mine life is 18 years with projected average annual production of approximately 289,000 oz gold equivalent* per year.

Option 3: a 60,000 tpd open pit, heap leach oxide gold operation transitioning to underground sub level open stope mining (27,000 tpd) of the higher grade gold copper sulphide zone. This option is projected to produce an average of 250,000 oz of gold in years 1-3 and 425,000 oz gold equivalent* per year in years 4-13. Over a planned 42 year mine life projected production is 344,000 oz gold equivalent* per year.

Option 1 - 30,000 tpd Standalone Heap Leach

Option 1 is a standalone, 30,000 tpd heap leach oxide gold project, producing an estimated average of 122,000 gold equivalent* oz annually over a projected 10 year mine life, including 148,000 oz in the first five years. This open pit mine plan benefits from lower up front capital requirements and sequenced higher start up grades in the initial part of the mine life. In addition, a very low life-of-mine strip ratio (0.27:1) and favorable leach kinetics are positive contributors to the project economics.

Highlights of Option 1

• Project strengths: low strip ratio (0.27:1), favourable leach kinetics, higher start up grades.
• Projected average annual production in the first five years is 148,000 oz gold equivalent* and over the life of mine (“LOM”) is 122,000 oz gold equivalent*.
• Mine life is 10 years producing 1.27 million oz gold equivalent*.
• Projected average total cash operating costs are US$589/oz gold equivalent*.
• At US$1,300/oz gold pre-tax net present value (“NPV”), is US$355 million, generating an internal rate of return (“IRR”) of 34.7%, and a payback period of 3.4 years from initial construction. (After-tax NPV5% US$279 million, IRR 30.2%).
• Estimated initial capital costs are US$210 million plus an additional US$41 million in contingencies.
• LOM operating costs are US$6.50 per tonne of material processed.
• Average gold and silver recoveries are 80% and 40%, respectively.
• Peak water requirement of 44 litres per second (“lps”).

To view details relating to Option 1 click here.

Option 2 - 60,000 tpd Open Pit Gold Heap Leach/27,000 tpd Open Pit Gold Copper Operation
Option 2 is an accelerated open pit heap leach operation at 60,000 tpd producing approximately 240,000 ounces gold per year over a 6 year mine life. Gold copper sulphide mineralization is mined from an extension of the same open pit with the concentrator operations beginning in year 6. Sulphide mineral will be mined from the open pit for an additional 12 years at a rate of 27,000 tpd. Mineralized gold copper, silver material will be treated in a conventional copper flotation concentrator with a cyanide leach-SART-carbon column plant to recover additional gold and copper from one of the flotation circuit tailings streams.

Highlights of Option 2

• Projected average annual production is approximately 289,000 oz gold equivalent* per year or 125 million pounds copper equivalent** per year.
• Mine life is 18 years.
• Projected average total cash operating costs are US$551/oz gold equivalent*, C1 cash cost are US$1.33/lb copper equivalent**.
• At US$1,300/oz gold, the pre-tax NPV 5% is US$967 million, generating IRR of 27.2%, and a payback period of 6.1 years from initial construction (After tax NPV 5% US$737 million, IRR 22.7%).
• Estimated initial capital costs are US$371 million including contingencies. Additional staged capital including sustaining costs and closure costs of US$926 million.
• Benefit of operating cash flow to reduce overall capital and financing risk of operation.
• Maximum processing throughput is 60,000 tpd of mineralized material through the oxide heap leach plant and 27,000 tpd through the sulphide plant.
• 6 year open pit, heap leach operation, transition to open pit sulphide material in year 6 at 27,000 tpd.
• Peak water requirement of 185 lps.

To view details relating to Option 2 click here.

Option 3 - 60,000 tpd Open Pit Gold Heap Leach/27,000 tpd Underground Gold Copper Operation
Option 3 includes an accelerated open pit heap leach operation (60,000 tpd) producing approximately 250,000 ounces gold per year over a 5 year mine life. Large sub level open stope underground mining starting in year 3 targets the Caspiche gold copper sulphide higher grade core. Initially a single ramp is advanced into the top of the higher grade core. By year 7, underground mining operations ramp up to full capacity (27,000 tpd) with the development of a second ramp. That ramp provides for an underground crusher and conveyor system. Thereafter the sulphide mineralized material is crushed underground and transported to the concentrator by conveyor. Mineralized material will be treated in a conventional copper flotation concentrator with a cyanide leach-SART-carbon column plant to recover additional gold and copper from one of the flotation circuit tailings streams.

This option has numerous advantages including relatively low power requirements, low water requirements, a small surface footprint which is driven by reduced tailings, due to backfill options, reduced dust exposure with its small open pit and underground operation. A smaller concentrator and stacked dry tailings all lead to lower environmental impact, which includes substantially reduced water requirements.

Highlights of Option 3

• Projected average annual production is approximately 344,000 oz gold equivalent* per year or 147 million pounds copper equivalent** per year.
• Mine life is 42 years.
• Projected average total cash operating costs are US$709/oz gold equivalent*, C1 cash cost are US$1.77/lb per CuEq*.
• At US$1,300/oz gold, the pre-tax NPV 5% is US$1.64 billion, generating an IRR of 20% and a payback period of 7.7 years from initial construction (After tax NPV5% US$1.27 billion, IRR 17.6%).
• Estimated initial capital costs are US$387 million including contingencies. Additional staged capital (supplemented by operating profit) including sustaining costs and closure costs is US$1.58 billion.
• Benefit of operating cash flow to reduce overall capital and financing risk of operation.
• Maximum processing throughput is 60,000 tpd of mineralized material through the oxide heap leach plant and 27,000 tpd through the sulphide plant.
• 5 year open pit, heap leach operation, transition to underground mining in year 3. Year 6-7 ramp up from 15,000 tpd to 27,000 tpd. Underground 40 year mine life producing 250,000 ounces gold per year in years 1-3. Years 4-16: 422,000 ounces gold equivalent* per year.
• Estimated head grades for first 10 years of underground gold copper sulphide production –1.07 g/t Au, 0.42% Cu.
• Peak water requirement of 151 lps.

To view details relating to Option 3 click here.

The economic analysis contained in the PEA is considered preliminary in nature. No inferred mineral resources form part of the PEA studies and no mineral reserves for the PEA have been established. Mineral resources are not mineral reserves and have no demonstrated economic viability. There is no certainty that economic forecasts outlined in the PEA will be realized. The PEA and the April 2012 Mineral Resource (as defined herein) may be materially affected by environmental, permitting, legal, title, taxation, socio-political, marketing or other relevant factors.

Next Steps

Based on the findings of the PEA, the Caspiche Project, with a near surface oxide only gold zone, a central higher grade gold-copper core, and a surrounding larger gold-copper mineralized zone, presents a range of mine development options. Given the current industry dynamics, Exeter believes a staged development approach is appropriate. The compelling preliminary economics and modest capital requirements, demonstrate that advancing the standalone surface oxide gold zone (Option 1) through to a production decision, is the logical path forward for Exeter. To develop Caspiche on any of the larger, more advanced mine plans is an option that improves with the operating cash flows generated by initial mining of the oxide gold zone.

Critical for any mine development in the Caspiche region is securing adequate water resources. Exeter continues a program to establish an independently owned water supply to minimise the cost of water procurement to the project. Exeter is optimistic that its current water program could provide quantities of water to meet all of the mining options outlined in the PEA. By establishing secured water resources, Exeter expects feasibility and environmental impact studies for the Caspiche near surface oxide gold zone can be finalized.

Co-Chairman of Exeter, Yale Simpson states, “Development options at Caspiche, whether modest or large scale, deliver strong economic returns at current metal prices. Our ability in today’s market to focus on advancing the 1.5 million ounce gold oxide open pit is sensible and achievable. Importantly for shareholders, with future elevated gold and copper markets, we believe the value of the very large Caspiche gold-copper inventory will be a strong value driver for Exeter. Caspiche is unique, representing one of only a few scalable development projects that is not yet controlled by a major company.”

Reduced Water Requirements and Water Strategy

The previous January 2012 PFS for the large scale open pit mining operation indicated water requirements of approximately 1,000 lps. Current expectations, based on the PEA, is that the 30,000 tpd standalone oxide operation requires peak water requirements of 44 lps; Option 2, 60,000 tpd open pit and 27,000 tpd gold copper sulphide pit expansion requires peak water of 185 lps; and Option 3, 60,000 tpd open pit and 27,000 tpd underground gold copper operation requires peak water consumption of 151 lps. Under all of these new, potentially viable mine plans, water requirements are significantly reduced. Exeter’s current water exploration activities are targeting to secure sufficient water to meet the requirements outlined within the PEA studies.

Water drilling is currently underway at the Company’s Laguna Verde water exploration tenement (option to earn 90% interest). Terraqua, a specialist Chilean water drilling contractor, is contracted to complete a US$1.5 million exploration drilling program, consisting of up to 3, 12 inch diameter production holes. Based on historical water exploration and new geophysical studies at Laguna Verde, we are optimistic this current drilling campaign will identify new water resources that could, in due course, lead to securing all of the water requirements at Caspiche. Exeter anticipates providing an update on water exploration activities in Q2/14.

Mineral Resources

Mineral resource estimates outlined below for the Caspiche Project with an effective date of April 11, 2012 (the “April 2012 Mineral Resource”) were prepared by Mr. Ted Coupland, MAusIMM(CP), at the time, Director and Principal Geostatistician of Cube Consulting Pty Ltd (“Cube”). The April 2012 Mineral Resource, which was classified in accordance with the CIM guidelines (CIM 2011), includes 12 additional drill holes (4,797 metres) carried out between October 2011 to March 2012, out of a total of 166 holes (79,960 metres) drilled at Caspiche. Mr. Patrick Adams MAusIMM(CP), Director and Principal Geologist of Cube has reviewed and validated the April 2012 Mineral Resource noted below.

A previous mineral resource estimate for Caspiche was prepared by AMEC in 2012 (Marinho, 2011), see January 2012 PFS filed on SEDAR on January 16, 2012 (the “January 2012 Mineral Reserve Estimate”).

The April 2012 Mineral Resource reported from within the 'reasonable prospects' resource shell are summarised in tables below. Oxide material was reported above 0.18 g/t AuEq1 cut-off and sulphide material was reported above 0.30 g/t AuEq1 cut-off. Note that the PEA does not include inferred mineral resources.

3. AuEq = resource tonnes * AuEq1

1. The following formula was used in calculating AuEq values in each block of the model:

where Au and Cu are the block kriged Au and Cu grades, PAu and PCu are the Au and Cu prices (US$1,150/oz and US$2.50/lb, respectively), and RAu and RCu are the Au and Cu projected metallurgical recoveries, 65% and 85%, respectively for sulphide material and 78% for Au and 11% for Cu in the oxide zone.

A sub set of the April 2012 Mineral Resource, reflected in the table below, using a cut off of 0.75 g/t AuEq2, was selected as appropriate for the reporting of mineral resources intended for underground exploitation based on preliminary economic cut off studies commissioned by Exeter during October 2013.

2. The following formula was used to calculate AuEq values in each estimated block of the model:

where Au, Ag and Cu are the block kriged gold, silver and copper grades, PAu, PAg and PCu are the gold, silver and copper prices (US$1,250/oz, US$15/oz and US$2.75/lb, respectively). RAu and RCu are the Au and Cu projected metallurgical recoveries based on a number of S % thresholds. The following table shows the recovery factors for gold, silver and copper within the Oxidized, and Sulphide domains and the DP and Non-DP stratigraphic units by sulphur threshold.

Caspiche Recovery Factors (NCL Nov 2013)

DP=Diorite porphyry, principal host rock to higher grade mineralization at Caspiche

In the April 2012 Mineral Resource estimate Cube assessed reasonable prospects of economic extraction by applying preliminary economics for potential open pit and underground mining methods. These assumptions were in-line with the January 2012 Mineral Reserve Estimate. The assessment does not represent an economic analysis of the deposit. Marginal cut-off parameters used in the April 2012 Mineral Resource estimate are as follows:

Mineral resources are not mineral reserves and do not have demonstrated economic viability.

The potential development of the April 2012 Mineral Resource may be materially affected by legal, political, environmental or other risks.

Environmental, Corporate Social Responsibility

To date, Exeter has conducted various baseline environmental studies at Caspiche which cover the area considered for each of the options and which have included water and air quality monitoring, fauna and flora and archeological studies. In order to collect required year round weather data for potential development at Caspiche, the Company has also installed a number of weather monitoring facilities. The various base line studies are ongoing.

Exeter has engaged and continues to engage the indigenous communities in discussions and explain ongoing studies and potential development activities in the project area. The Company has secured an access agreement over certain indigenous community areas where its exploration camp was located. In future the Company expects to enter into negotiation with indigenous communities for access to certain areas which may be required for potential development and mining activity which are outside of the area covered by the easement secured from the Chilean government recently.

Caspiche January, 2012 Pre-feasibility Study

During the process of preparing the PEA, NCL and Alquimia validated the January 2012 PFS (inputs and assumptions) such that the January 2012 PFS remains current and a viable development option.

To view details relating to the January, 2012 PFS click here.

Notes

About NCL Ingeniería y Construcción (NCL)

NCL is a consulting company formed in Santiago, Chile, in 1985. Its main objective is to provide focused advice and solutions for mining companies requiring specialized services mainly in the fields of resource estimation, mine design and planning (for open pit and underground methods), mine equipment selection, optimization of mine unit operations and mining cost estimation.

NCL has successfully completed a wide range of studies and projects within its field of expertise through the different stages in mining project development and has completed conceptual studies to bankable feasibility studies for clients on a global basis. It has also a relevant experience in the area of project assessments and valuations, due diligence and technical audits. The company’s office in Santiago employs 36 full time mining engineers and a total permanent staff of 45.

About Alquimia Conceptos S.A. (Alquimia)

Alquimia was formed in 2002, in response to a growing industry demand for specialized consultancy in mining-metallurgical processes, which allow optimizing the operations of existing plants, as well as designing and evaluating the feasibility of new projects.

Since inception Alquimia has carried out over 250 projects in both consulting and engineering studies, with nearly 500,000 man-hours sold to major mining projects in Chile with clients including Anglo American, Codelco, Xstrata Copper and Minera Esperanza amongst others.

Detailed Report
The Technical Report pertaining to the PEA and April 2012 Mineral Resource will be filed on the Company’s web site (www.exeterresource.com) and on SEDAR within 45 days.

The economic analysis contained in the PEA is considered preliminary in nature. No inferred mineral resources form part of the PEA studies and no mineral reserves for the PEA have been established. Mineral resources are not mineral reserves and have no demonstrated economic viability. There is no certainty that economic forecasts outlined in the PEA will be realized.

Assessment Authors and Independent Qualified Persons Statement
Maria Leticia Conca Benito, Mining Engineer, Universidad de Chile, Registered Member of Chilean Mining Commission, was responsible for the compilation of information and preparation of the overall PEA.

Significant contributions were also received from Cube and NCL.

1. Carlos Guzmán, Mining Engineer (FAusIMM and Registered Member of the Chilean Mining Commission), Principal and Project Director of NCL Ingeniería y Construcción SpA. is a qualified person as defined in NI 43-101 and was responsible for the mining related studies;
2. Maria Leticia Conca Benito, Mining Engineer, Universidad de Chile, Registered Member of Chilean Mining Commission, CEO and Project Director, Alquimia Conceptos S.A.is a qualified person as defined in NI 43-101 and was responsible for the information provided for the metallurgy and process plant design;
3. Patrick Adams (MAusIMM(CP) Director and Principal Geologist, Cube Consulting Pty Ltd, is a qualified person as defined in NI 43-101 and was responsible for resource estimation, exploration, drilling and data verification;

Maria Leticia Conca Benito, Mining Engineer, Universidad de Chile, Registered Member of Chilean Mining Commission, of Alquimia Conceptos S.A is a qualified person as defined in NI 43-101 and independent of Exeter, is responsible for preparing the information contained in this news release.

About Exeter
Exeter Resource Corporation is a Canadian mineral exploration company focused on the exploration and development of the Caspiche project in Chile. The project is situated in the Maricunga gold district, between the Refugio mine (Kinross Gold Corp.) and the Cerro Casale gold deposit (Barrick Gold Corp. and Kinross Gold Corp.). The discovery represents one of the largest mineral discoveries made in Chile in recent years Exeter initiated the preliminary economic assessments with the aim of indicating the development optionality of this world class discovery. The securing of water required for potential project development is a priority and exploration is ongoing.

The Company currently has cash reserves of C$36 million and no debt.

You are invited to visit the Exeter web site at www.exeterresource.com.

EXETER RESOURCE CORPORATION
Wendell Zerb
President and CEO

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