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Almaden Reports 42% After-Tax IRR with 203,000 Ozs GOLD Equivalent Production PER Year over First 6 Years from Feasibility Study FOR the Ixtaca Precious Metals Project, Mexico

Economic Studies

NEWS RELEASE

December 11, 2018

Trading Symbols:

TSX: AMM; NYSE American: AAU

www.almadenminerals.com

ALMADEN REPORTS 42% AFTER-TAX IRR WITH 203,000 OZS GOLD EQUIVALENT

PRODUCTION PER YEAR OVER FIRST 6 YEARS FROM FEASIBILITY STUDY FOR THE

IXTACA PRECIOUS METALS PROJECT, MEXICO

Vancouver, B.C. Almaden Minerals Ltd. (“Almaden” or “the Company”; TSX: AMM; NYSE American:

AAU) is pleased to report positive results of the independent Feasibility Study (the “Study”) prepared in

accordance with National Instrument 43-101 (“NI 43-101”) for its 100% owned Ixtaca precious metals deposit,

located in Puebla State, Mexico. The Study and resulting mine plan incorporate significant changes from an

earlier Pre-Feasibility Study published by the Company (see Almaden news release of April 3 rd , 2017) including

filtered (dry stack) tailings, ore sorting, increased throughput and an improved mine schedule. Collectively the

changes result in a reduced project footprint and improved economics.

All values shown are in $US.

Base case uses $1275/oz gold and $17/oz silver prices.

Gold and silver equivalency calculations assume 75:1 ratio.

Highlights

 Average annual production of 108,500 ounces gold and 7.06 million ounces silver (203,000 gold

equivalent ounces, or 15.2 million silver equivalent ounces) over first 6 years;

 After-tax IRR of 42% and after-tax payback period of 1.9 years;

 After-tax NPV of $310 million at a 5% discount rate;

 Initial Capital of $174 million;

 Conventional open pit mining with a Proven and Probable Mineral Reserve of 1.39 million ounces of

gold and 85.2 million ounces of silver (See Table 2);

 Pre-concentration uses ore sorting to produce a total of 48 million tonnes of mill feed averaging 0.77 g/t

gold and 47.9 g/t silver (2.03 g/t gold equivalent over first 6 years, 1.41 g/t gold equivalent over life of

mine);

 Average LOM annual production of 90,800 ounces gold and 6.14 million ounces silver (173,000 gold

equivalent ounces, or 12.9 million silver equivalent ounces);

 Operating cost $716 per gold equivalent ounce, or $9.55 per silver equivalent ounce;

 All-in Sustaining Costs (“AISC”), including operating costs, sustaining capital, expansion capital, private

and public royalties, refining and transport of $850 per gold equivalent ounce, or $11.30 per silver

equivalent ounce.

 Elimination of tailings dam by using filtered tailings significantly reduces the project footprint and water

usage.

J. D. Poliquin, Chairman of Almaden stated, "We have advanced Ixtaca from our blind discovery in 2010 to

its current position as an outstanding inventory of precious metals in a well-established mining jurisdiction

with a very robust economic profile. Significant potential remains to increase resources through continued

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drilling of portions of the Ixtaca project that remain open as well as other targets on this largely unexplored

property. In the meantime, we are looking forward to further developing this deposit through permitting and

construction to demonstrate our commitment to modern, responsible mining and the potential for Ixtaca to

be a strong economic engine for the Company and the region in which it is located."

Study

Almaden engaged a team of consultants led by Moose Mountain Technical Services (“MMTS”) to undertake this

Study. MMTS was responsible for mining, metallurgy, processing, infrastructure and the economic evaluation,

APEX Geoscience Ltd. for exploration and drill data QA/QC, Giroux Consultants for the resources estimation,

and SRK Consulting (U.S.), Inc. (“SRK”) for aspects related to geotechnical, tailings and water management.

Table 1 – Summary of the Economics of the Ixtaca Feasibility Study

Amount

Pre-Tax NPV (5%) $ 470 million

Pre-Tax IRR 57 %

Pre-Tax Payback 1.6 Years

Post-Tax NPV (5%) $310 million

Post-Tax IRR 42 %

Post-Tax Payback 1.9 Years

Initial Capital $ 174 million

Life of Mine 11 Years

Waste/ ROM ore ratio 4.5:1

Years 1 - 6 Life of Mine (LOM)

Cash Operating Cost ($/AuEq oz.) 667 716

AISC ($/AuEq oz.) 810 850

Annual Gold production (000's oz.) 108 90

Annual Silver production (000's oz.) 7,071 6,160

Annual Gold equivalent production (000's oz.) 202 173

Average mill feed grade (g/t) Au 1.10 0.77

Average mill feed grade (g/t) Ag 69.3 47.9

Average mill feed grade (g/t) AuEq 2.03 1.41

1. Economics assume a Gold Price of $1275/Oz and Silver Price of $17/Oz and are estimated on a 100%

equity basis.

Geology and Mineral Resource Estimate

The Ixtaca deposit is an epithermal gold-silver deposit, mostly occurring as anastomosing (branching and re-

connecting) vein zones hosted by limestone and shale basement rocks with a minor component of disseminated

mineralisation hosted in overlying volcanic rocks. The wireframe models constructed to define the overall vein

zones therefore contain interspersed irregular zones of barren limestone dilution. In this Study the limestone unit

hosts 75% of the metal produced, the volcanic unit hosts 12% and the black shale unit hosts 13% on a gold-

equivalent basis. The Mineral Resources for Ixtaca are presented in Table 2.

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Table 2- Summary of Ixtaca Mineral Resources

MEASURED RESOURCE

AuEq Cut-

off Tonnes > Cut-off Grade>Cut-off Contained Metal x 1,000

(g/t) (tonnes) Au (g/t) Ag (g/t) AuEq

(g/t) Au (ozs) Ag (ozs) AuEq

(ozs)

0.30 43,380,000 0.62 36.27 1.14 862 50,590 1,591

0.50 32,530,000 0.75 44.27 1.39 788 46,300 1,454

0.70 25,080,000 0.88 51.71 1.63 711 41,700 1,312

1.00 17,870,000 1.06 61.69 1.95 608 35,440 1,118

INDICATED RESOURCE

AuEq Cut-

off Tonnes > Cut-off Grade>Cut-off Contained Metal x 1,000

(g/t) (tonnes) Au (g/t) Ag (g/t) AuEq

(g/t) Au (ozs) Ag (ozs) AuEq

(ozs)

0.30 80,760,000 0.44 22.67 0.77 1,145 58,870 1,994

0.50 48,220,000 0.59 30.13 1.02 913 46,710 1,586

0.70 29,980,000 0.74 37.79 1.29 715 36,430 1,240

1.00 16,730,000 0.96 47.94 1.65 516 25,790 888

INFERRED RESOURCE

AuEq Cut-

off Tonnes > Cut-off Grade>Cut-off Contained Metal x 1,000

(g/t) (tonnes) Au (g/t) Ag (g/t) AuEq

(g/t) Au (ozs) Ag (ozs) AuEq

(ozs)

0.30 40,410,000 0.32 16.83 0.56 412 21,870 726

0.50 16,920,000 0.44 25.43 0.80 237 13,830 436

0.70 7,760,000 0.57 33.80 1.06 142 8,430 264

1.00 3,040,000 0.79 43.64 1.42 77 4,270 139

1. Ixtaca Mineral Resources Estimate have an effective date of 8 July 2018. The Qualified person for the estimate is Gary Giroux,

P.Eng.

2. Base Case 0.3 g/t AuEq Cut-Off grade is highlighted. Also shown are the 0.5, 0.7 and 1.0 g/t AuEq cut-off results. AuEq

calculation based average prices of $1250/oz gold and $18/oz silver. The Base Case cut-off grade includes consideration of the

open pit mining method, 90% metallurgical recovery, mining costs of $1.82/t, average processing costs of $11.7, G&A costs of

$1.81/t

3. Mineral Resources are reported inclusive of those Mineral Resources that have been converted to Mineral Reserves. Mineral

Resources that are not Mineral Reserves do not have demonstrated economic viability.

4. The estimate of Mineral Resources may be materially affected by environmental, permitting, legal or other relevant issues. The

Mineral Resources have been classified according to the CIM Definition Standards for Mineral Resources and Mineral Reserves in

effect as of the date of this news release.

5. All figures were rounded to reflect the relative accuracy of the estimates and may result in summation differences.

Mine Plan

The Ixtaca gold-silver project is planned as a typical open pit mining operation using contractor mining. Initial

production will ramp up to a mill feed rate of 7,650 tonnes per day followed by an expansion to 15,300 tonnes

per day from Year 5 onwards.

An ore control system is planned to provide field control for the loading equipment to selectively mine ore grade

material separately from the waste.

Mining operations will be based on 365 operating days per year with three 8 hour shifts per day.

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Processing

The Study reflects the Rock Creek process plant which has been purchased by Almaden. Run of mine ore will

be crushed in a three-stage crushing circuit to -9 mm.

The Study also incorporates ore sorting, test work for which has shown the ability to separate barren or low

grade limestone host rock encountered within the vein swarm from vein and veined material (see Almaden news

release of July 16 th 2018). Product from the secondary crusher will be screened in to coarse (+20mm), mid-size

(12 to 20 mm), and fine (-12mm) fractions. Coarse and mid-size ore will be sorted by an XRT ore sort machine

to eject waste rock. Fine ore will bypass the ore sorting and is sent directly to the mill.

Ore sort waste from Limestone and Black Shale is below waste/ore cutoff grade and is placed in the waste rock

dump. Ore sort ‘waste’ from the Volcanic unit is low grade ore and will be stockpiled for processing later in the

mine life. Ore sorting pre-concentration increases the mill feed gold and silver grades by 32% and 31%

respectively compared to run of mine (ROM) grades. Table 3 shows ROM grades with ore sort waste removed

from the ROM, and the resulting mill feed.

Table 3 Ore Sort Mill Feed grade improvement

ROM Ore sort Mill

Ore Waste Feed

million tonnes 51.5 18.8 32.7

Au g/t 0.572 0.24 0.763 Limestone

Ag g/t 37.5 12.0 52.2

million tonnes 12.2 6.3 5.8

Au g/t 0.517 0.25 0.806 Black Shale

Ag g/t 44.4 20.0 70.8

million tonnes 9.4 - 9.4

Au g/t 0.790 - 0.790 Volcanic

Ag g/t 18.6 - 18.6

million tonnes 73.1 25.1 48.0

Au g/t 0.591 0.24 0.773 TOTAL

Ag g/t 36.3 14.0 47.9

Crushed ore is transported to the grinding circuit by an over land conveyor. Grinding to 75 microns is carried out

with ball milling in a closed circuit with cyclones. Cyclone underflow is screened and the screen undersize is

treated in semi-batch centrifugal gravity separators to produce a gravity concentrate.

The gravity concentrate will be treated in an intensive leach unit with gold and silver recovered from

electrowinning cells.

The cyclone overflow will be treated in a flotation unit to produce a flotation concentrate. After regrinding the

flotation concentrate leaching will be carried out in 2 stages. CIL leaching for 24 hours will complete gold

extraction, followed by agitated tank leaching to complete silver leaching. A carbon desorption process will

recover gold and silver from the CIL loaded carbon, and a Merrill Crowe process will recover gold and silver

from pregnant solution from the agitated leach circuit.

Cyanide destruction on leach residue is carried out using the SO 2/Air process. Final tailings are thickened and

filtered then dry stacked and co-disposed with mine waste rock.

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Average process recoveries from mill feed to final product over the life of mine are summarized in Table 4 for

each ore type.

Table 4 Average Life of Mine Process Recoveries from Mill Feed

Gold Silver

Limestone 88.5% 86.8%

Volcanic 64.4% 76.3%

Black Shale 54.5% 84.7%

Water and Waste Management

One of Almaden’s top priorities at Ixtaca is water quality and a mine plan that provides a permanent and

consistent long-term supply of water for residents. The plan outlined in the Study has evolved through the open

dialogue between the Company and residents over the past number of years and as part of the Social

Investment Plan consultation (see section below on “Community”).

Rainfall in the Ixtaca vicinity falls primarily during a relatively short rainy season. With no local water storage

facilities, the flash flows of water are currently lost to the communities. Under the Study, rainwater will be

captured during the rainy season in the water storage reservoir and slowly released during the dry season, for

use by both the mining operation and local residents.

Extensive geochemical studies have evaluated the potential for acid rock drainage and metal leaching from the

waste rock and tailings using globally accepted standardised methods of laboratory testing and in compliance

with Mexican regulations. Most of the waste rock at Ixtaca is limestone, and the studies of both waste rock and

tailings have consistently shown that there is more than enough neutralising potential present in the waste rock

to neutralise any acid generated. Testing to date also indicates low potential for metal leaching. These results

along with the excellent access to potential markets in the growing industrial state of Puebla, indicate the

potential for rock waste and tailings from the Ixtaca deposit to be secondary resources such as aggregate and

cement feedstock. These opportunities will be fully examined in 2019 as part of the Company’s commitment to

best sustainable practices.

In consideration of these findings and the hydrologic conditions at Ixtaca, Almaden and its consultants reviewed

Best Available Technology and Best Applicable Practice in the design and planning of tailings management at

Ixtaca, which resulted in selecting a dry-stack tailings facility which would include co-disposal of waste with

filtered tailings, use much less water than traditional slurry facilities, reduce the mine footprint, allow for better

dust control, and enable earlier rehabilitation of the tailings and waste disposal areas.

Mineral Reserve Estimate

Mineral Reserves in Table 5, have been developed by MMTS with an effective date of November 30, 2018, and

are classified using the 2014 CIM Definition Standards. The Mineral Reserves are based on an engineered

open pit mine plan.

Table 5 – Mineral Reserves

Tonnes

Diluted Average

Grades Contained Metal

(millions) Au (g/t) Ag (g/t) Au - '000 ozs Ag - '000 ozs

Proven 31.6 0.70 43.5 714 44,273

Probable 41.4 0.51 30.7 673 40,887

TOTAL 73.1 0.59 36.3 1,387 85,159

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1. Mineral Reserves have an effective date of November 30, 2018. The qualified person responsible for the Mineral

Reserves is Jesse Aarsen, P.Eng of Moose Mountain Technical Services.

2. The cut-off grade used for ore/waste determination is NSR>=$14/t

3. All Mineral Reserves in this table are Proven and Probable Mineral Reserves. The Mineral Reserves are not in

addition to the Mineral Resources but are a subset thereof. All Mineral Reserves stated above account for mining

loss and dilution.

4. Associated metallurgical recoveries (gold and silver, respectively) have been estimated as 90% and 90% for

limestone, 50% and 90% for volcanic, 50% and 90% for black shale.

5. Reserves are based on a US$1,300/oz gold price, US$17/oz silver price and an exchange rate of

US$1.00:MXP20.00.

6. Reserves are converted from resources through the process of pit optimization, pit design, production schedule

and supported by a positive cash flow model.

7. Rounding as required by reporting guidelines may result in summation differences.

Legal, political, environmental, or other risks that could materially affect the potential development of the Mineral

Reserves are provided below under the heading “Forward-Looking Statements”.

Capital and Operating Costs

Initial capital cost for the Ixtaca gold-silver project is $174 million and sustaining capital (including expansion

capital) is $111 million over the LOM. The estimated expansion capital of $64.5 million will be funded from

cashflow in Year 4 for the throughput ramp-up in Year 5. Estimated LOM operating costs are $26.8 per tonne

mill feed. The following tables summarize the cost components:

Table 6 – Initial Capital Costs ($ millions)

Mining 22.2

Process 80.2

Onsite Infrastructure 24.3

Offsite Infrastructure 7.5

Indirects, EPCM, Contingency and Owner’s Costs 39.9

Total 174.2

Table 7 – Expansion Capital Costs ($ millions)

Mining $ 1.2

Process $ 56.9

Infrastructure $ 1.5

Indirects, EPCM, Contingency and Owner’s Costs $ 5.0

Total $ 64.5

Table 8 – LOM Average Operating Costs ($)

Mining costs $/tonne milled $15.2

Processing $/tonne milled $10.5

G&A $/tonne milled $1.1

Total $/tonne milled $26.8

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Economic Results and Sensitivities

A summary of financial outcomes comparing base case metal prices to alternative metal price conditions are

presented below. The Study base case prices are derived from current common peer usage, while the alternate

cases consider the project’s economic outcomes at varying prices witnessed at some point over the three years

prior to this study.

Table 9 - Summary of Ixtaca Economic Sensitivity to Precious Metal Prices (Base Case is Bold)

Gold Price ($/oz) 1125 1200 1275 1350 1425

Silver Price ($/oz) 14 15.5 17 18.5 20

Pre-Tax NPV 5% ($million) 229 349 470 591 712

Pre-Tax IRR (%) 35% 46% 57% 67% 77%

Pre-Tax Payback (years) 2.0 1.8 1.6 1.4 1.3

After-Tax NPV 5% ($million) 151 233 310 388 466

After-Tax IRR (%) 25% 34% 42% 49% 57%

After-Tax Payback (years) 2.6 2.1 1.9 1.7 1.5

Community Consultations

Almaden has a long history of engagement with communities in the region around the Ixtaca project. Amongst

many other initiatives, the Company has trained and employed drillers and driller helpers from the local area,

held nine large-scale community meetings totalling over 4,100 people, taken 480 local adults on tours of

operating mines in Mexico, and held monthly technical meetings on a diverse range of aspects relating to the

mining industry and the Ixtaca project. On December 9, 2018, Almaden hosted the most recent large-scale

community meeting which was attended by over 800 people, including representatives of the new Federal

Government in Mexico.

In 2017, Almaden engaged a third-party consultant to lead a community consultation and impact assessment at

the Ixtaca project. In Mexico, only the energy industry requires completion of such an assessment (known in

Mexico as a Trámite Evaluación de Impacto Social, or “EVIS”) as part of the permitting process. The purpose of

these studies is to identify the people in the area of influence of a project (“Focus Area”), and assess the

potential positive and negative consequences of project development to assist in the development of mitigation

measures and the formation of social investment plans. To Almaden’s knowledge, this is the first time a formal

EVIS has been completed in the minerals industry in Mexico, and as such reflects the Company’s commitment

to best national and international standards in Ixtaca project development.

The EVIS and subsequent work on the development of a Social Investment Plan were conducted according to

Mexican and international standards such as the Guiding Principles on Business and Human Rights, the

Equator Principles, and the OECD Guidelines for Multinational Enterprises and Due Diligence Guidance for

Meaningful Stakeholder Engagement in the Extractive Sector.

Fieldwork for the EVIS was conducted by an interdisciplinary group of nine anthropologists, ethnologists and

sociologists graduated from various universities, who lived in community homes within the Ixtaca Focus Area

during the study to allow for ethnographic immersion and an appreciation for the local customs and way of life.

This third-party consultation sought voluntary participation from broad, diverse population groups, with specific

attention to approximately one thousand persons in the Focus Area.

This extensive consultation has resulted in changes to some elements of the mine design, including the planned

construction of a permanent water reservoir to serve the local area long after mine closure, and the shift to dry-

stack filtered waste management. The Company looks forward to advancing further elements of the community

Social Investment Plan as mine permitting and construction advance.

For more information on Almaden’s interactions with the local communities please visit

http://www.almadenminerals.com/index.html and https://twitter.com/proixtaca?lang=en .

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Economic Contributions

The Study anticipates that approximately 600 direct jobs will be created during the peak of construction, and 420

jobs will be generated during operations. Assuming base case metal prices, under this Study Ixtaca is

anticipated to generate approximately US$130 million in Federal taxes, US$50 million in State taxes and US$30

million in Municipal taxes.

Closure and Reclamation

Mine waste areas will be reclaimed and re-vegetated at the end of mining activity. At closure, all buildings will be

removed and remaining facilities, except for the water storage dam (WSD), will be reclaimed and re-vegetated.

The WSD and the availability of this water to the local communities will remain after closure.

Opportunities

Several opportunities excluded from the base case economics have been identified in the Study.

 Results from the ore sorting tests identified several opportunities to increase the ore sort efficiency and

could result in a further increase in mill feed grades. These opportunities will be investigated with future

test work.

 Gold extraction recoveries in the minor black shale unit are currently impeded by the presence of

carbonaceous material. Recent test work including carbon pre-flotation and ultra-fine gravity separation

has demonstrated that the carbon can be liberated and removed with a significant improvement in gold

recovery. This test work is ongoing and is expected to improve the black shale gold recovery.

 Test work carried out on Ixtaca limestone waste rock samples concluded that Ixtaca limestone waste

rock is suitable for many types of concrete use and other applications such as shotcrete, subgrade,

asphalt aggregate or railroad ballast with little effort and processing. Concrete produced with tests on

Ixtaca limestone aggregate performed very well, achieving the 28-day design compressive strength of

30 MPa already at 7 days, and more than 40 MPa at 28 and 56 days.

Ixtaca is connected by 60 km of paved road to the industrial city Apizaco, 120 km of paved road to the

state capital of Puebla, and 170 km of paved road to Mexico City.

The sale of limestone ore sort rejects (a waste product) as an aggregate presents a very significant

potential source of revenue to the project at no additional capital or operating cost to the project. There

is also potential to sell some of the ROM waste rock as an aggregate.

 Fine aggregate from crushing and grinding operations is also expected to perform in a similar way to the

coarse aggregate. Chemical analysis of the fine aggregate indicates that it is also suitable as a raw

material for the production of lime cement or Portland cement if properly processed and blended with

suitable silica aluminates.

Next Engineering and Development Steps

The Company is pursuing the optimization opportunities noted above and will shortly submit its environmental

permit application to Mexican authorities.

A NI 43-101 technical report for this Study will be filed on SEDAR (www.sedar.com) within 45 days.

Qualified Persons, Quality Control and Assurance

The independent qualified persons responsible for preparing the Study are: Jesse Aarsen, P.Eng. and Tracey

Meintjes, P.Eng. of MMTS; Edward Wellman PE, PG, CEG and Clara Balasko, P.E. of SRK; Kris Raffle, P.Geo.

of APEX Geoscience Ltd.; and Gary Giroux, M.A.Sc., P.Eng. of Giroux Consultants Ltd.; all of whom act as

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