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Almaden Hits 16.40 M of 2.25 G/T GOLD and 25.3 G/T Silver and 10.50 M of 2.45 G/T GOLD and 24.4 G/T Silver IN Upper Portion of PFS Pit

Drill Results Economic Studies

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NEWS RELEASE

December 20th, 2017

Trading Symbols:

TSX: AMM; NYSE American: AAU

www.almadenminerals.com

ALMADEN HITS 16.40 M OF 2.25 G/T GOLD AND 25.3 G/T SILVER

AND 10.50 M OF 2.45 G/T GOLD AND 24.4 G/T SILVER IN UPPER PORTION OF PFS PIT

Almaden Minerals Ltd. (“Almaden” or “the Company”; TSX : AMM ; NYSE American: AAU) is pleased to

announce new assay results from Almaden’s ongoing exploration and development program at the Company’s

Tuligtic project, Mexico. Today’s results are from holes TU-17-508, 517, 521, 522, 524, 525, 526 and 528 which

were drilled to follow -up h ole TU-17-504 (announced August 23, 2017) that intersected new and significant

mineralisation in an upper portion of the Pre-Feasibility Study (“PFS”) pit which was modelled as waste material

in the Company’s PFS. These latest results confirm th e discovery of a new zone of mineralisation in the

volcanic and limestone lithologies. Highlights include the following intercepts:

Hole TU-17-508 SECTION 10+700 EAST Az. 150, Dip -48

46.00 meters @ 0.74 g/t Au and 26.2 g/t Ag

Including 27.50 meters @ 1.02 g/t Au and 38.6 g/t Ag

16.40 meters @ 2.25 g/t Au and 25.3 g/t Ag

Hole TU-17-517 SECTION 10+650 EAST Az. 150, Dip -70

24.00 meters @ 0.62 g/t Au and 15.1 g/t Ag

Including 6.00 meters @ 1.86 g/t Au and 15.1 g/t Ag

Hole TU-17-521 SECTION 10+675 EAST Az. 150, Dip -60

16.50 meters @ 0.56 g/t Au and 9.8 g/t Ag

Including 4.00 meters @ 1.02 g/t Au and 21.6 g/t Ag

Hole TU-17-522 SECTION 10+675 EAST Az. 150, Dip -50

50.50 meters @ 0.73 g/t Au and 11.4 g/t Ag

Including 10.50 meters @ 2.45 g/t Au and 24.4 g/t Ag

Hole TU-17-524 SECTION 10+675 EAST Az. 150, Dip -82

13.15 meters @ 0.70 g/t Au and 8.3 g/t Ag

Including 4.00 meters @ 1.31 g/t Au and 18.9 g/t Ag

Hole TU-17-525 SECTION 10+700 EAST Az. 150, Dip -62

32.00 meters @ 0.82 g/t Au and 25.0 g/t Ag

Including 9.35 meters @ 2.01 g/t Au and 42.9 g/t Ag

Hole TU-17-526 SECTION 10+700 EAST Az. 150, Dip -75

14.70 meters @ 0.91 g/t Au and 26.6 g/t Ag

Hole TU-17-528 SECTION 10+700 EAST Az. 150, Dip -87

10.25 meters @ 1.16 g/t Au and 25.6 g/t Ag

And 2.00 meters @ 1.21 g/t Au and 375.8 g/t Ag

J.D. Poliquin, chairman of Almaden stated, “We are very encouraged to be outlining this new mineralized zone

in an area modelled as waste for stripping within our PFS pit, and look forward to the inclusion of this new zone

in future mine plans. Ongoing drilling will continue to seek more such zones even as the engineering work and

feasibility study progress.”

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About the Ixtaca Deposit Feasibility Program

The Company has selected independent engineers Moose Mountain Technical Services (“MMTS”) to lead the

feasibility study. Various feasibility-related programs are currently underway, including:

 Feasibility-level engineering design;

 Additional geotechnical evaluations in areas of infrastructure and pit slope;

 Continued monitoring of water quality and flow;

 Metallurgical test work to further refine the process flowsheet;

 The Comisión Federal de Electricidad (CFE) , the state -owned electric utility of Mexico , has confirmed

the availability of power from its substation located 27 km from the Ixtaca Project ;

 Assessment of contractors suitable to complete site access road improvements required for the mine

construction.

MMTS is an association of Geologists, Engineers and Technicians providing experienced knowledge in Geology,

Mine Engineering, and Metallurgical Services and Support to the mining industry for over 15 years. Through

their network of associates , they provid e an integrated team of experts and QP s. Services range from early

grassroots exploration and development, block model builds, resource and reserve estimates, advanced

planning and studies for mine proposals (including operational support), process design and permitting process

guidance and support. MMTS has experience working on coal, gold, silver, copper, molybdenum, and tungsten

deposits throughout North and South America and around the world. A list of specific projects worked on by

MMTS can be found at www.moosemmc.com.

About the Ixtaca Drilling Program and the Ixtaca Zone

The Ixtaca Zone is a blind discovery made by the Company in 2010 on claims staked by the Company. The

deposit is an epithermal gold -silver deposit, mostly hosted by veins in carbonate units and crosscutting dykes

(“basement rocks”) with a minor component of disseminated mineralisation hosted in overlying volcanic rocks.

The Ixtaca deposit is located in a developed part of Mexico in Puebla State, the location of significant

manufacturing investments including Volkswagen and Audi plants. The deposit is accessed by pav ed road and

is roughly 30 kilometres from an industrial park with rail service where significant manufacturers such as

Kimberly Clarke have facilities. Any potential mining operation at Ixtaca would be located in an area previously

logged or cleared with negligible to no current land usage.

The Company has access to the entire project area and works closely with local officials and residents. The

Company has employed roughly 70 people in its exploration program who live local to the Ixtaca deposit. For

example, local employees have made up virtually all the drilling staff and have been trained on the job to

operate the drill rigs being used at the project . The Company has implemented a comprehensive science based

and objective community relations and educat ion program for employees and all local stakeholders to

transparently explain the exploration and development program underway as well as the potential impacts and

benefits of any possible future mining operation at Ixtaca. The Company regards the local in habitants to be

major stakeholders in the Ixtaca deposit’s future along with the Company’s shareholders. Every effort is being

made to create an open and clear dialogue with our stakeholders to ensure that any possible development

scenarios that could evol ve from the feasibility study work are properly understood and communicated

throughout the course of the Company’s exploration and development program. To better explain the impacts of

a mining operation at Ixtaca the Company has conducted numerous tours f or local residents to third party

operated mines in Mexico so that interested individuals can form their own opinions of mining based on first -

hand experience. The Company invites all interested parties to visit www.almadenminerals.com to find out more

about our community development, education and outreach programs.

On December 12, 2017 Almaden announced the completion of a Social Impact Assessment (“SIA”) of the Ixtaca

Project completed by Juan -Pablo Gudiño of GMI Consulting (“GMI”). GMI is a Mexico City -based group which

provides social and environmental consulting services to government and industry. In 2015 it wa s recognized by

Consulting Magazine as one of the 50 most important consulting companies in Mexico. The work to complete

the SIA was carried ou t by an interdisciplinary group of nine anthropologists, ethnologists and sociologists

graduated from various universities, who lived in community homes within the Focus Area during the study to

allow for ethnographic immersion and an appreciation for the local customs and way of life . The SIA sought

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voluntary participation from broad, diverse population groups, with specific attention to approximately one

thousand persons in the Focus Area. Key points regarding the study include the following:

 GMI found t hat Almaden Minerals’ consultation process complies with the Equator Principles and

International Best Practices;

 All the fieldwork is backed up by audio, privacy notices, and photographs which demonstrate the

voluntary participation of the interviewees, and their consent to be included in the study;

 The SIA included the participation of men, women, the elderly, boys and girls;

 The SIA concluded that Almaden Minerals had consulted widely with the Focus Area communities, the

Ixtaca project was well understoo d, and that the SIA itself was successful in providing people with an

opportunity to clearly express their views on the impacts of Ixtaca project development.

Technical Details of the Ixtaca Drilling Program

The Main Ixtaca and Ixtaca North Zones of veining are interpreted to have a north -easterly trend. Holes to date

suggest that the Main Ixtaca and Ixtaca North Zones are sub vertical with local variations. This interpretation

suggests that true widths range from approximately 35% of intersected widths for a -70 degree hole to 94% of

intersected widths for a -20 degree hole. The drilling completed to date has traced mineralisation over 1,000

meters along this northeast trend. The Chemalaco (Northeast Extension) Zone strikes roughly nor th-south (340

azimuth) and dips at 55 degrees to the west. This interpretation suggests that true widths range from

approximately 82% of intersected widths for a -70 degree hole to 99% of intersected widths for a -40 degree

hole. The orientations of the new vein zones intersected in the holes reported today are not well understood and

true widths cannot be calculated at this time.

The Ixtaca gold-silver deposit is largely comprised of zones of abundant high grade epithermal veins with low

base metals hos ted in barren limestone. Gold and silver in these veins occurs largely as electrum (an alloy of

gold and silver) and other leachable sulphides. The boundaries of these vein zones, or swarms, with un -

mineralised limestone are well defined both visually and by assay results and are therefore readily modelled for

geologic and resource purposes. The many individual veins and veinlets within the vein swarms branch and re -

connect, as well as locally change strike and dip, pinch and swell. The wireframe models con structed to define

the overall vein zones therefore contain interspersed irregular zones of barren limestone wallrock. This inclusion

of limestone dilution in the vein zone wireframes results in average reserve grades of 1.17 g/t AuEq (80.5 g/t

AgEq), as reported in the Company’s Pre-Feasibility Study which was filed on SEDAR in May, 2017 (the “PFS”).

Nevertheless, the actual occurrence of gold and silver in the limestone hosted Main Ixtaca Zone is in the form of

high grade veins and veinlets, not, for exam ple, as widespread low grade disseminated mineralisation. These

geologic and mineralogic observations have very positive mining and recovery implications as defined in the

PFS released by the Company:

 The near surface occurrence and broad nature of the I xtaca gold-silver deposit vein zones allow for low-

cost bulk open pit mining as opposed to expensive underground methods often required for narrow

individual veins. At the time of future mining, the exposure of the vein system on mine benches may

allow for the visual definition between limestone waste and epithermal veining and improvement to the

geologic model from that generated from exploration drill holes. An improved mine bench scale geologic

model, along with appropriate ore control systems, may allow for more selective mining and waste

definition of the vein swarms;

 The contrast between barren limestone and the non -refractory gold and silver ore and vein mineralogy

allows for simple bulk gravity and flotation to remove the barren limestone to create low mass pull and

volume concentrates. The PFS demonstrates that a bulk flotation concentrate of gravity tails over the

mine life will average approximately 4.3 g/t gold and 390 g/t silver with a mass pull of ~8%;

 Leaching these limestone domain concentra tes results in very high overall gold and silver recoveries

(both average approximately 90%) into doré on site without the need for expensive smelting as is the

case for many base metal rich precious metal deposits.

Mr. Norm Dircks, P.Geo., a qualified p erson (“QP”) under the meaning of NI 43 -101, is the QP and project

manager of Almaden’s Ixtaca program and reviewed the technical information in this news release . The

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analyses reported were carried out at ALS Chemex Laboratories of North Vancouver using industry standard

analytical techniques. For gold, samples are first analysed by fire assay and atomic absorption spectroscopy

(“AAS”). Samples that return values greater than 10 g/t gold using this technique are then re -analysed by fire

assay but with a g ravimetric finish. Silver is first analysed by Inductively Coupled Plasma - Atomic Emission

Spectroscopy (“ICP -AES”). Samples that return values greater than 100 g/t silver by ICP -AES are then re

analysed by HF-HNO3-HCLO4 digestion with HCL leach and ICP -AES finish. Of these samples those that return

silver values greater than 1,500 g/t are further analysed by fire assay with a gravimetric finish. Intervals that

returned assays below detection were assigned zero values.

Blanks, field duplicates and certifi ed standards were inserted into the sample stream as part of Almaden’s

quality assurance and control program which complies with National Instrument 43 -101 requirements.

About Almaden

Almaden Minerals Ltd. owns 100% of the Tuligtic project in Puebla State, Mexico, subject to a 2.0% NSR royalty

held by Almadex Minerals Limited . Tuligtic covers the Ixtaca Gold -Silver Deposit, which was discovered by

Almaden in 2010.

On Behalf of the Board of Directors

“Morgan Poliquin”

Morgan J. Poliquin, Ph.D., P.Eng.

President, CEO and Director

Almaden Minerals Ltd.

Neither the Toronto Stock Exchange (TSX) nor the NYSE American have reviewed or accepted responsibility for the adequacy or accuracy of the contents of

this news release which has been prepared by management. Except for the statements of historical fact contained herein, certa in information presented

constitutes "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and Canadian sec urities laws.

Such forward-looking statements, including but not limited to, those with respect to potential expansion of miner alization, potential size of mineralized zone, and

size and timing of exploration and development programs, estimated project capital and other project costs and the timing of submission and receipt and

availability of regulatory approvals involve known an d unknown risks, uncertainties and other factors which may cause the actual results, performance or

achievement of Almaden to be materially different from any future results, performance or achievements expressed or implied b y such forward -looking

statements. Such factors include, among others, risks related to international operations and joint ventures, the actual results of c urrent exploration activities,

conclusions of economic evaluations, uncertainty in the estimation of mineral resources, changes in project parameters as plans continue to be refined,

environmental risks and hazards, increased infrastructure and/or operating costs, labour and employment matters, and governme nt regulation and permitting

requirements as well as those factors discussed in the section entitled "Risk Factors" in Almaden's Annual Information form and Almaden's latest Form 20 -F on

file with the United States Securities and Exchange Commission in Washington, D.C. Although Almaden has attempted to identify important factors that could

cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance

that such statements will prove to be accurate as actual results and future events co uld differ materially from those anticipated in such statements. Almaden

disclaims any intention or obligation to update or revise any forward -looking statements, whether as a result of new information, future events or otherwise, other

than as required pursuant to applicable securities laws. Accordingly, readers should not place undue reliance on forward -looking statements.

Contact Information:

Almaden Minerals Ltd.

Tel. 604.689.7644

Email: [email protected]

http://www.almadenminerals.com/