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Aztec Minerals Acquires Late 1980’s-Early 1990’s Drilling and Trenching Data for the Tombstone Project, Arizona Historic Drill Results Include 1.61 gpt Gold, 91.2 gpt Silver over 44.2 meters, and 32 gpt Silver, 0.61% Copper, 6.5% Zinc, 2.6% Lead over 7.2 meters,

Mergers & Acquisitions Exploration Programs

PO Box 10328 T: 604-685-9770

Suite 1130 – 609 Granville Street www.aztecminerals.com

Vancouver, BC V7Y 1G5

Aztec Minerals Acquires Late 1980’s-Early 1990’s Drilling and Trenching Data

for the Tombstone Project, Arizona

Historic Drill Results Include 1.61 gpt Gold, 91.2 gpt Silver over 44.2 meters, and

32 gpt Silver, 0.61% Copper, 6.5% Zinc, 2.6% Lead over 7.2 meters,

Historic Trench Results Include 8.15 gpt Gold, 386 gpt Silver over 9.45 meters,

and 74.6 gpt Gold, 3,135 gpt Silver over 1.83 meters

Vancouver, Canada – September 18, 2018 - Aztec Minerals Corp. (AZT: TSX-V) announces it has acquired

late 1980’s-early 1990’s drilling and trenching data for the Tombstone project in Arizona. Aztec holds an

option to acquire a 75% interest from Baroyeca Gold & Silver Inc. in most of the old patented claims (163

hectares) constituting the famous Tombstone silver mining district located 100 km southeast of Tucson,

Arizona.

Historic drilling by USMX totalled 7,350 meters in 86 reverse circulation drill holes primarily around the

old Contention mine open pit in 1993. MPV Capital drilled another 1,867 meters in 14 holes in 1994.

Aztec reviewed the USMX and MPV reports, located the drill collars for the USMX holes, and the general

areas of the MPV drill collars (gravel mining since the 1990’s has disturbed some areas).

Highlights of the USMX drilling include 1.61 grams per tonne (gpt) gold and 91.2 gpt silver over 44.2

meters (m) length in hole TR-001 and 1.42 gpt gold and 28.6 gpt silver over 68.58 m in hole TR-002. The

Contention mine open pit-heap leach mine operated from 1980 to 1985, and intermittently from 1986

to 1989, exploiting shallow, bulk tonnage, epithermal gold-silver stock-work mineralization around the

Contention dike and fault. The Contention Mine is within the Tombstone Property under option from

Baroyeca Gold. USMX drill highlights are shown in the table below and drill hole true widths of

mineralization were not provided nor interpreted.

USMX Drill Highlights

RCDH # From_m To_m Int_m Au_gpt Ag_gpt

TR-001 18.30 62.50 44.20 1.61 91.2

incl 76.20 91.44 15.24 2.14 39.0

also 112.82 121.92 9.1 1.2 16.7

TR-002 3.05 71.63 68.58 1.42 28.6

incl 50.29 70.10 19.81 3.31 24.6

also 60.96 62.48 1.52 24.66 13.6

PO Box 10328 T: 604-685-9770

Suite 1130 – 609 Granville Street www.aztecminerals.com

Vancouver, BC V7Y 1G5

RCDH# From_m To_m Int_m Au_gpt Ag_gpt

TR-003 28.95 89.91 60.96 1.34 31.1

incl 28.95 35.05 6.10 5.15 64.2

TR-008 51.81 91.43 38.1 1.73 35.3

TR-012 51.80 86.85 35.05 1.54 24.06

TR-020 39.62 64.02 24.4 1.11 40.6

TR-026 39.60 73.13 33.53 0.74 18.2

TR-033 89.9 99.04 9.14 5.38 181.7

TR-041 6.10 36.60 30.50 2.65 37.6

TR-067 7.62 85.32 77.7 0.47 25.5

TR-070 32.00 73.14 41.14 1.2 49.1

TR-081 1.52 48.76 47.24 0.73 NA

Historic drilling by Santa Fe Pacific between 1988 and 1990 targeted deeper (below 200 m) carbonate

replacement deposits (CRD) in the Paleozoic limestones underling the Bisbee Group sandstones that host

most of the historic silver mines and veins in the Tombstone district. Aztec reviewed the Santa Fe reports

and located the drill collars for the Santa Fe drill holes.

Highlights of the Santa Fe drilling include high grade, massive sulfide intercepts related to both carbonate

replacement deposits (CRD), skarn, and manto mineralization such as 32 gpt silver, 0.61% c opper, 6.5%

lead, 2.6% zinc over 7.2 m in hole T-8 and 2,407 gpt silver, 0.8% lead and 1.1% zinc over 0.3 m in hole T-1.

Santa Fe drill highlights are shown in the table below. True widths of these intercepts were not provided

nor interpreted from the Santa Fe drill hole data.

Santa Fe Pacific Drill Highlights

DDH From_m To_m Int_m Au_gpt Ag_gpt Cu_% Pb_% Zn_% Comments

T-1 398.7 399.3 0.6 0.67 409 0.05 4.3 4.1 Semi-

massive

manto

PO Box 10328 T: 604-685-9770

Suite 1130 – 609 Granville Street www.aztecminerals.com

Vancouver, BC V7Y 1G5

T-1 401.7 402.0 0.3 0.32 2407 0.03 0.8 1.1 Argentite

possible

T-2 520.3 521.8 1.5 0.22 33 0.89 2.2 2.0

DDH From_m To_m Int_m Au_gpt Ag_gpt Cu_% Pb_% Zn_% Comments

T-4 402.3 403.3 0.9 0.14 917 0.09 1.3 1.6

T-5 448.1 448.4 0.3 0.07 80 0.20 2.8 0.2

T-6 302.2 302.4 0.2 0.06 879 0.81 3.2 17.3 Sulphide

manto, high

Zn & Ag

T-8 502.5 503.4 0.9 ND 18 0.62 2.2 2.4 Sulphides,

weak skarn,

recrystallized

LST

T-8 656.5 663.7 7.2 0.06 32 0.61 6.5 2.6 Skarn,

oxidized

Historic trenching by Cowichan Mines Ltd. in 1989 in the pit floor at the south end of the Contention mine

open pit totalled 12 sample lines over an 85 m length. Aztec reviewed their report but was not able to

locate the trenches because the south pit is covered by shallow fill related to recent gravel mining.

Highlights of the Cowichan trenching include 8.15 gpt gold and 386 gpt silver over 9.45 meters in trench

10200N and 74.56 gpt gold and 3,135 gpt silver over 1.83 meters in trench 10075N. There are no records

of any drilling in the area of the south Contention open pit , highlights in the table below. True widths of

mineralization from the trench data was not provided in the historic reports.

Cowichan Mines Ltd. Trench Highlights

Trench # Interval_m Au_gpt Ag_gpt

10200N 9.45 8.15 386

10175N 13.41 3.25 102

10150N 13.72 3.88 101

10075N 1.83 74.56 3,135

10025N 9.75 1.79 284

10000N 10.36 0.32 45

PO Box 10328 T: 604-685-9770

Suite 1130 – 609 Granville Street www.aztecminerals.com

Vancouver, BC V7Y 1G5

Joey Wilkins, President and CEO of Aztec commented, “These historic drill and trench results give us a

great head start on defining high priority targets for future drilling, and a solid foundation to work from

going forward at Tombstone. Our Phase 1 exploration program now underway of detailed mapping,

sampling, airborne magnetic survey and machine trenching should help to refine our targeting.”

“The USMX and Cowichan data clearly show significant epithermal mineralization remains to be drilled

around the old Contention mine open pit and the Santa Fe holes intersected high grade massive sulfide

mineralization in the west part of the district quite distal from more optimal structural locations for CRD

mineralization based on our work to date.”

Historic production in the Tombstone district from 1878 to 1939 was estimated at 32 million ounces (oz)

silver and 240,000 oz of gold from several small vein and manto CRD deposits. Aztec management views

the district as highly prospective for the discovery of both near surface, epithermal gold-silver and

deeper, silver-gold-copper-lead-zinc carbonate replacement deposits.

The Tombstone district is underlain by the s ame Paleozoic limestone formations that host the massive

Taylor zinc -silver-lead deposit of Ariz ona Mining Inc. , located only 65 kilometers west of Tombstone .

Arizona Mining Corp and shareholders have accepted a friendly $1.8-billion takeover bid by South32 on

August 1 0, 2018 . Similarly, the Bisbee porphyry copper -gold complex 33.5 kilometers southeast of

Tombstone contained impressiv e copper -silver-gold CRD deposits in the same Paleozoic limestone

formations as Tombstone.

QP Statement - Joey Wilkins, B.Sc., P.Geo., is the Qualified Person for Aztec and has reviewed and

approved the technical disclosures contained herein. The historic information cited in this news release

has been thoroughly reviewed by the QP and is satisfied with referencing its content. Drill hole d ata

pertaining to the USMX work was reviewed from in the “Tombstone Project Exploration Summary ” by

USMX Senior Geologist, Karl Kanbergs , dated July 7, 1993 . Santa Fe Pacific Mining held the Tombstone

property as an option agreement with Tombstone Development Company and data herein is referenced

in W.D. Riesmeyer’s “Semi-annual report on the Activities on the Tombstone District Lease ” dated

February, 1989 and updated on August 11, 1989. The trench data was described in a May, 1990 report by

Ross Glanville on behalf of Excellon Resources. Glanville reviewed the Tombstone Property, which at that

time was held by Cowichan Mines Ltd, and cited the trench work conducted by Cowichan. Aztec does not

have any information on the quality assurance or quality control measures taken in connection with these

historical exploration results, or other exploration or testing details regarding the Santa Fe Pacific, USMX,

and Cowichan results. The MPV Capital data was extracted from news releases , internal reports, and

company quarterly financial reports.

About Aztec Minerals – Aztec is a mineral exploration company focused on the discovery of large mineral

deposits in the Americas. Our core asset is the prospective Cervantes porphyry gold-copper property in

Sonora, Mexico. We also hold an option on the Tombstone district with open cut epithermal gold-silver

potential as well as high grade CRD silver-lead-zinc potential in southern Arizona. Aztec’s shares trade on

the TSX-V stock exchange (symbol AZT) and on the OTCQB (symbol AZZTF).

Contact Information - For more information, please contact:

PO Box 10328 T: 604-685-9770

Suite 1130 – 609 Granville Street www.aztecminerals.com

Vancouver, BC V7Y 1G5

Neil MacRae, Vice President, Investor Relations

Tel: (604) 685-9770

Fax: (604) 685-9744

Email: [email protected]

Website: www.aztecminerals.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture

Exchange) accepts responsibility for the adequacy or accuracy of this release. No stock exchange, securities commission or other

regulatory authority has approved or disapproved the information contained herein.

Cautionary Note Regarding Forward-Looking Statements

This news release contains “forward -looking statements” within the meaning of the United States Private Securities Litigation

Reform Act of 1995 and “forward -looking information” within the meaning of applicable Canad ian securities legislation. Such

forward-looking statements and information herein include but are not limited to statements regarding Aztec’ s anticipated

performance in 2018 and the future, including the exercise of the options on the Cervantes and Tombstone properties, the planned

exploration activities, receipt of assay results from drilling, the completion of further drilling and exploration work, and the timing

and results of various activities. The Company does not intend to, and does not assume any o bligation to update such forward -

looking statements or information, other than as required by applicable law.

Forward-looking statements or information involve known and unknown risks, uncertainties and other factors that may cause the

actual results, level of activity, performance or achievements of Aztec and its operations to be materially different from th ose

expressed or implied by such statements. Such factors include, among others, changes in national and local governments,

legislation, taxation, controls, regulations and political or economic developments in Canada and the United States; financial risks

due to precious and base metals prices, operating or technical difficulties in mineral exploration, development and mining

activities; risks and hazards of mineral exploration, development and mining; the speculative nature of mineral exploration a nd

development, risks in obtaining necessary licenses and permits, and challenges to the Company’s title to properties.

Forward-looking statements are based on assumptions management believes to be reasonabl e, including but not limited to the

continued operation of t he Company’s exploration operations, no material adverse change in the market price of commodities,

and such other assumptions and factors as set out herein. Although the Company has attempted to identify important factors that

could cause actual results t o differ materially from those contained in forward -looking statements or information, there may be

other factors that cause results to be materially different from those anticipated, described, estimated, assessed or intende d.

There can be no assurance th at any forward -looking statements or information will prove to be accurate as actual results and

future events could differ materially from those anticipated in such statements or information. Accordingly, readers should n ot

place undue reliance on forward-looking statements or information.