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Lundin GOLD Reconfirms Project Schedule and Lowers All-IN Sustaining Cost Estimate to US$583 PER Ounce FOR Its Fruta Del Norte GOLD Project

Corporate Updates

885 West Georgia Street T +1 604 689 7842

Suite 2000 F +1 604 689 4250

Vancouver, BC [email protected]

Canada V6C 3E8 lundingold.com

NEWS RELEASE

LUNDIN GOLD RECONFIRMS PROJECT SCHEDULE AND LOWERS

ALL-IN SUSTAINING COST ESTIMATE TO US$583 PER OUNCE FOR

ITS FRUTA DEL NORTE GOLD PROJECT

September 19, 2018 (Vancouver, Canada ) Lundin Gold Inc. ("Lundin Gold" or the

"Company") (TSX: LUG, Nasdaq Stockholm: LUG) is pleased to announce the results of its

update of the project estimate (“UPE”) for its Fruta del Norte gold project (“Fruta del Norte” or

the “Project”). The UPE involved a thorough review of the mine plan, capital and operating

cost re-estimate and an update to the Project schedule. All amounts are in U.S. dollars unless

otherwise indicated. This update should be read in conjunction with the Technical Report

entitled "Fruta del Norte - NI 43-101 Technical Report on Feasibility Study" (the " Technical

Report") filed by the Company in June 2016 , with an effective date of April 30, 2016, and the

Company’s project update press release dated May 30, 2017.

UPE Highlights:

• Reconfirmed construction schedule with first mine production planned in Q2 2019 and

first gold production planned in Q4 2019.

• Reduced period of capital payback to 3.5 years from 4 years with improved IRR to

17.5% from 16.3%.

• A 10% increase in NPV 5% to $786 million from $717 million.

• Estimated all-in sustaining cost (“AISC”) reduced to $583 per ounce of gold from $609

per ounce of gold.

• Estimated operating cost per tonne decreased 7.3% from $111.84 to $103.65.

• Estimated total gold production increased by 73,000 ounces to 4.6 million ounces over

a 15 year mine life.

• Total estimated capital expenditures increased only 1.2% from $684 million to $692

million.

“At the end of August we had committed 63% of planned capital expenditure, and construction

is 27% complete. The UPE demonstrates that we are on track to build Fruta del Norte on

budget and on schedule which is a credit to our Project team,” said Ron Hochstein, Lundin

Gold’s President and CEO. “We were able to lower the estimated AISC through improvements

in the mine plan, refinement of processing costs and negotiation of smelting contracts for the

concentrate. This further demonstrates the robustness of our high-grade Fruta del Norte gold

deposit.”

Fruta del Norte Update:

• As at August 31, 2018, a total of 2.9 kilometres (“km”) had been achieved including

declines and auxiliary development, with 1.4 km and 1.5 km achieved in the Kuri and

K’isa declines, respectively.

• Daily August average advance rates were 6.1 metres (“m”) for both Kuri and K’isa,

versus a target of 4.7 m and 4.3 m per day, respectively.

• Both declines have now crossed the Machinaza Fault and have gone under the

Machinaza River, with no water inflows.

• Grinding build ing steel erection is underway , and process plant concrete is 30 %

complete.

• Mill process equipment is arriving on site, and the grinding mills are currently en route.

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• The t wo construction fronts on the North Access Road have met , and the road is

expected to be complete by the end of September.

• The Environmental Licence was received for the Mountain Pass Quarry , and

negotiation of the Quarry Exploitation Agreement with the Yantzaza municipality is well

underway.

• Construction of the powerline, both onsite and offsite, is proceeding.

• Construction of the Tailings Storage Facility is ongoing.

• 63% of planned capital expenditure is now committed or incurred, of which 36% of

planned capital expenditure has been incurred. Project engineering i s now 60%

complete.

• Activities have commenced to prepare for operations including the hiring of the general

manager and mill manager.

Update of the Project Estimate Details

Probable Mineral Reserve Estimates

The Company has increased its estimates for Probable Mineral Reserves slightly by 80,000

ounces when compared to the Project update annouced on May 30, 2017 (the “PPR”) and by

204,000 ounces when compared to the estimates contained in the Technical Report.

Table 1. Probable Mineral Reserves(1)

Technical Report PPR(2)(3)(4)(5)(6)(7)(8) UPE(2)(3)(4)(5)(6)(7)(8)

Mt 15.5 16.8 17.8

Au (g/t) 9.67 9.16 8.74

Au (Moz) 4.82 4.94 5.02

Ag (g/t) 12.7 12.6 12.1

Ag (Moz) 6.34 6.79 6.95

See “Additional Technical Information” below for further information regarding the Probable

Mineral Reserve Data.

Mine Plan Review

As a result of the UPE, Fruta del Norte’s mine plan has been improved, and a strategic decision

was made to utilize primary-secondary sequenc ing versus end -slicing. Implementing this

methodology provides greater operational flexibility with access to more areas of the ore body

simultaneously and reduced backfill costs due to longer cure times and less binder

requirements.

Other changes to the mine plan included:

• Lower cut -off grade from 4.1 gram per tonne gold (“g/t gold”) to 3.8 g/t gold for

transverse stoping and from 5.1 g/t gold to 5.0 g/t gold for the drift and fill stopes.

• Better balancing of mining methods with a slight increase in transverse stoping from

72% to 75% of ore removed. The remainder will be mined using drift and fill techniques.

• Total capital development, including owner and contractor, reduced from 19.0 km to

14.7 km.

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Capital Cost Estimate

Revised pre -production capital cost is now estimated to be $6 92 million, inclusive of

contingency and pre-production expenses and revenues and net of taxes. This represents a

slight increase of $8 million, or 1.2% over the PPR estimate, which totalled $684 million. This

increase is mainly due to infrastructure costs and community and environmental monitoring

being higher in the UPE than the PPR.

Operating Cost Estimate

Operating costs estimate is down 7.3% or $8.19 in the UPE to $103.65 on a per tonne basis

compared to the PPR, and 3.7% or $15.89 to $408.20 on a per ounce basis. This is a result

of the optimized mining methods , which reduced the mining costs , and reduced reagent

consumption estimates based on the most recent metallurgical test work.

Table 2. Life of Mine Operating Cost by Area

Area PPR Cash

Cost ($/t)

PPR Cash Cost

($/oz Au

payable)

UPE Cash

Cost ($/t)

UPE Cash Cost

($/oz Au

payable)

Mining 54.98 208.48 47.85 188.4

Process 32.44 123.00 27.60 108.71

Surface 4.21 15.96 6.17 24.32

General & Administration 20.21 76.65 22.02 86.74

Total Operating Cost 111.84 424.09 103.65 408.20

Note: Numbers may not add due to rounding

All-In Sustaining Cost Estimate

AISC is now expected to be $583 per ounce of gold instead of $609 per ounce of gold,

representing a $26 , or 4% reduction. In addition to the lower mining costs, average

concentrate treatment charges in the UPE are significantly lower than the charge of $275 per

dry metric tonne estimated in the PPR , which was offset by slig htly higher transportation,

refining and penalty charges.

Table 3. Life of Mine AISC ($/oz Au payable)

Area PPR Cash Cost UPE Cash Cost

On site operating cost 424 408

Treatment and refining charges 84 78

Royalties and production taxes 76 74

By-product silver credit (22) (23)

Cash Cost 561 537

Sustaining capital and closure

costs 49 46

AISC $ per oz Au 609 583

Note: Numbers may not add due to rounding

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Project Economics

Project economics continued to improve using the same gold ($1 ,250 per ounce) and silver

price assumptions ($20 per ounce) used for the PPR and the Technical Report. The capital

payback period is now estimated at 3.5 years with a 17.5% IRR and an NPV 5% of $786

million.

Table 4: Project Economics

PPR After Tax UPE After Tax

Net Present Value at a 5%

discount rate (NPV5) $717 million $786 million

Internal Rate of Return

(IRR) 16.3% 17.5%

Capital Payback (years) 4.0 3.5

Notes:

1. All figures are reported on a 100% equity project basis valuation. Capital payback is calculated based on start of

commercial production.

2. Economic valuation is presented using a start date of July 1, 2017.

Additional Technical Information

Qualified Person

The technical information relating to the Fruta del Norte Project contained in this Press Release

has been reviewed and approved by Ron Hochstein P. Eng, Lundin Gold's President and CEO,

who is a Qualified Person under NI 43-101.

Notes to Table 1. Probable Mineral Reserves

(1) Except as set out below, the assumptions, parameters and risks associated with the results

of the Technical Report for the Project, the Mineral Resource and Mineral Reserve

estimates included therein, the PPR and the UPE, are as set out in the Technical Report.

(2) All Mineral Reserves in this table are Probable Mineral Reserves. No Proven Mineral

Reserves were estimated.

(3) PPR estimates are as at December 31, 2017 and UPE estimates are as at September 19,

2018.

(4) Mineral Reserves were estimated using key inputs listed in the table below:

Key Inputs for Mineral Reserve

Estimate PPR UPE Unit

Gold Price 1,250 1,250 $/oz

TS 57 48 $/t

Overhand D&F 79 81 $/t

Underhand D&F 85 71 $/t

Process, Surface Ops, G&A 58 58 $/t

Dilution Factor 10 10 percent

Concentrate Transport & Treatment 9 9 $/t

Royalty 71 71 $/oz

Gold Metallurgical Recovery 91.7 91.7 percent

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(5) Gold cut-off grades for the different mining methods are listed in the table below:

Gold Cut-off Grade PPR UPE Unit

Transverse Stope 4.1 3.8 g/t

Overhand D&F 4.8 5.0 g/t

Underhand D&F 5.1 5.0 g/t

Note: An increased cut-off grade was used in the PPR Overhand

D&F for the initial years of 6.5 g/t.

(6) The average silver metallurgical recovery is 81.6%. The silver price assumption was

$20/oz. Silver was not considered in the calculation of the cut-off grade.

(7) Tonnages are rounded to the nearest 1,000 t, gold grades are rounded to two decimal

places, and silver grades are rounded to one decimal place. Tonnage and grade

measurements are in metric units; contained gold and silver are reported as thousands of

troy ounces.

(8) Rounding as required by reporting guidelines may result in summation differences.

For information with respect to the key assumptions, parameters and risks associated with the

results of the Technical Report for the Project, the Mineral Resource and Mineral Reserve

estimates included therein and other technical information, please refer to the Technical Report

filed on SEDAR at www.sedar.com.

About Lundin Gold

Lundin Gold, headquartered in Vancouver, Canada, is developing its wholly-owned Fruta

del Norte gold project in southeast Ecuador. Fruta del Norte is one of the world's largest,

highest-grade gold projects currently under construction. The Company's board and

management team have extensive expertise in mine construction and operations, and are

dedicated to advancing this project through to first gold production in the fourth quarter of

next year.

The Company operates with transparency and in accordance with international best

practices. Lundin Gold is committed to delivering value to its shareholders, while

simultaneously providing economic and social benefits to impacted communities, fostering

a healthy and safe workplace and minimizing the environmental impact. The Company

believes that the value created through the development of Fruta del Norte will benefit its

shareholders, the Government and the people of Ecuador.

Additional Information

The information in this release is subject to the disclosure requirements of Lundin Gold

under the EU Market Abuse Regulation. This information was submitted for publication

September 19, 2018 at 05:00 a.m. PT through the contact persons set out below.

For more information, please contact

Lundin Gold Inc.

Ron F. Hochstein

President and CEO

+593 2-299-6400

+604-806-3589

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Lundin Gold Inc.

Sabina Srubiski

Manager, Investor Relations

+1-604-806-3089

[email protected]

www.lundingold.com

Follow Lundin Gold on Twitter

Caution Regarding Forward-Looking Information and Statements

Certain of the information and statements in this press release are considered “forward-looking

information” or “forward-looking statements” as those terms are defined under Canadian securities laws

(collectively referred to as “forward -looking statements”). Any statements that express or involve

discussions with respect to predicti ons, expectations, beliefs, plans, projections, objectives,

assumptions or future events or performance (often, but not always, identified by words or phrases such

as “believes”, “anticipates”, “expects”, “is expected”, “scheduled”, “estimates”, “pending”, “intends”,

“plans”, “forecasts”, “targets”, or “hopes”, or variations of such words and phrases or statements that

certain actions, events or results “may”, “could”, “would”, “will”, “should” “might”, “will be taken”, or “occur”

and similar expressions) are not statements of historical fact and may be forward-looking statements.

By their nature, forward -looking statements and information involve assumptions, inherent risks and

uncertainties, many of which are difficult to predict, and are usually beyond the control of management,

that could cause actual results to be materially different from those expressed by these forward-looking

statements and information. Lundin Gold believes that the expectations reflected in this forward-looking

information are reas onable, but no assurance can be given that these expectations will prove to be

correct. Forward -looking information should not be unduly relied upon. This information speaks only

as of the date of this press release, and the Company will not necessarily update this information, unless

required to do so by securities laws.

This press release contains forward-looking information in a number of places, such as in statements

pertaining to: timing of first gold production and commercial production, scheduling, gold and silver price

and exchange rate assumptions, cash flow forecasts, projected capital and operating costs, metal or

mineral recoveries, mine life and production rates , the Company's potential plans and operating

performance, changes to the mine plan, the estimation of mineral reserves or the tonnage, potential

production from and viability of the Company's Project, access to funding, the terms of the Company’s

smelting contracts, performance of the Company's contractors , cons truction and infrastructure

development.

Lundin Gold’s actual results could differ materially from those anticipated. Management has identified

the following risk factors which could have a material impact on the Company or the trading price of its

shares: the ability to arrange financing and the risk to shareholders of dilution from future equity

financings; the ability to maintain its obligations under its debt facilities ; risks related to carrying on

business in Ecuador; volatility in the price of gold; the timely receipt of regulatory approvals, permits and

licenses; risks associated with the performance of the Company's contractors; risks inherent in the

development of an underground mine; deficient or vulnerable title to mining concessions and surface

rights; shortages of critical resources, labour and key executive personnel, such as input commodities,

equipment and skilled labour, and the dependence on key personnel; risks associated with the

Company's community relationships; unreliable infrastructure; volatility in the market price of the

Company's shares; the potential influence of the Company's largest shareholders; uncertainty with the

tax regime in Ecuador; measures required to protect endangered species; the cost of compliance or

failure to comply with applicable laws; exploration and development risks; the accuracy of the Mineral

Reserve and Resource estimates for the Fruta del Norte Project; the Company's reliance on one project;

risks related to artisanal and illegal mining; uncertainty as to reclamation and decommissioning; risks

associated with the Company's information systems; competition in the mining industry; the ability to

obtain adequate insurance; ris ks of bribery or corruption; the potential for litigation; and limits of

disclosure and internal controls.

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There can be no assurance that such statements will prove to be accurate, as Lundin Gold's actual

results and future events could differ materially from those anticipated in this forward-looking information

as a result of the factors discussed in the "Risk Factors" section in Lundin Gold's Annual Information

Form dated March 20, 2018, which is available under the Company’s profile at www.sedar.com .

Figure 1. Fruta del Norte project site as at August 2018

Figure 2. Underground mine development in the Kuri decline

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Figure 3. Grinding building steel erection is underway

Figure 4. Carbon-in-leach tank foundations