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Abacus Provides Results on Jersey Valley

Corporate Updates

Abacus Provides Results on Jersey Valley

Vancouver, BC – June 3, 2021. Abacus Mining & Exploration Corporation (“Abacus” or the

“Company”) (TSXV: AME) wishes to announce the results from a recently completed three-

hole drilling program on the Jersey Valley epithermal gold property.

The Company intercepted similar gold and silver values to historical drilling, with the targets

tested further along strike and at slightly greater depth. The best results were a 12.64 metre

interval of 0.053 g/t gold and 0.73 g/t silver, including 1.09 g/t silver over 7.55 metres and 0.19

g/t gold and 3.62 g/t silver over 1.5 m. These types of gold systems are found due to the

presence of low, subeconomic precious metal values near surface, and it is possible tha t the

Company did not drill deep enough in this first pass of drilling.

Sampling of the drill holes was hampered by very poor core recovery throughout all holes. It is

thought that Reverse Circulation drilling might provide better recoveries in a future pr ogram.

The Company also collected a great deal of geochemical data during the drilling, and once

analyzed, this should provide vectors towards better mineralization.

The Company drilled three of the planned four holes on the property, each to a vertical de pth

of approximately 300 metres, and opted not to drill the final hole due to difficult drilling

conditions with very broken and oxidized rock . The program was designed to test IP

geophysical anomalies identified in a survey completed in 202 0, which were t he strike

continuations of zones drill tested by a previous operator.

The best intercept in drill hole Jersey 1 was 0.016 g/t gold over 4.14 m, although the adjacent

0.3 metre down hole interval had no core recovery, followed by a 1.52 metre intercept of 0.011

g/t gold. It is thus possible that elevated, but subeconomic gold values may have occurred over

a core length of 5.97 metres. Drill hole Jersey 2 returned a 12.64 metre interval of 0.053 g/t

gold and 0.73 g/t silver, including 1.09 g/t silver over 7.5 5 metres and 0.19 g/t gold and 3.62

g/t silver over 1.5 m. Drill hole Jersey 3 returned 0.047 g/t gold over 2.03 metres.

The geology consists of a complex mixture of volcanic fragmentals, intrusives and broken sinter

terraces. The fact that an active geothermal system is present, means that a great deal of fluid

flow is occurring through the rocks. As mentioned previously, these types of systems are found

due to “leakage” near surface of subeconomic precious metal values pointing to possible better

values a t depth. It is then a matter of working out the faulting and using trace element

geochemistry to vector into the best areas.

The Jersey Valley property is prospective for epithermal precious metal mineralization in an

active hydrothermal environment, like the Taupo volcanic zone in New Zealand, and is also

prospective for Au-Ag skarns. The property has a well-maintained sealed road running through

it, which provides access to a 15 MW geothermal power plant located on the claim group.

The project is within t he Battle Mountain trend of north-central Nevada in close proximity to

both the producing Phoenix/Fortitude mine complex, a gold skarn with approximately 14 Moz

gold plus significant Ag and Cu past production and a proposed mine life to 2063, and the

Suite 1000 – 1050 West Pender Street

Vancouver, B.C. V6E 3S7 Canada

Tel: 604.682.0301

email: [email protected]

website: www.amemining.com

TSX Venture Exchange Symbol: AME

Cove/McCoy Mine, a Carlin-type gold deposit with approximately 3.4 Moz gold and 110 Moz

Ag past production (information is compiled from the Newmont Mines and Premier Gold Mines

websites, and is considered historic in nature . The reader is further cautioned that the

mineralization hosted on nearby properties is not necessarily indicative of mineralization

hosted on the Company’s Jersey Valley gold property).

The Company also has additional properties of merit in Nevada. T he Willow copper-

molybdenum porphyry property is in the Yerington copper camp, southeast of Reno. Drilling by

the Company in 2018 intersected a key intrusive rock unit that hosts all known porphyry Cu -

Mo deposits at Yerington. This rock unit was not previously known to exist on the Company’s

property, and it represents a significant new discovery. The target is large and robust, and it

remains essentially untested. The Company is about to start a new drilling program on this

prospective property.

Abacus also holds a 20% ownership interest in the Ajax copper-gold porphyry project, located

near Kamloops, British Columbia., which is managed by base metal major KGHM Polska Miedź

S.A., who hold the remaining 80%. The Ajax Project contains significant quantities of co pper

and gold, within a NI 43-101 Proven and Probable Mineral Reserve of 426 Mt at 0.29% Cu,

0.19 g/t Au and 0.39 g/t Ag. Contained metal is in the order of 2.7 Bil lbs Cu, 2.6 Moz Au and

5.3 Moz Ag. *

The technical information in this news release has been reviewed and approved by Paul G.

Anderson, M.Sc., P.Geo., a Qualified Person within the meaning of National Instrument 43 -

101.

* Wardrop Engineering Inc. 2012. Ajax Copper/Gold Project, Kamloops, British Columbia –

Feasibility Study Technical Report. Doc. No. 1054610300-REP-R0004-02. January 2012.

On Behalf of the Board,

ABACUS MINING & EXPLORATION CORPORATION

Paul G. Anderson, P.Geo.

President and CEO

About Abacus

Abacus is a mineral exploration and mine development company currently focused on copper and gold in B.C. and

Nevada. The Company’s main asset is a 20% ownership interest, together with KGHM Polska Miedź S.A. (80%),

in the proposed copper-gold Ajax Mine located southwest of Kamloops, B.C., which has undergone a joint provincial

and federal environmental assessment process. On December 14, 2017, a decision was made by the B.C. Minister

of Environment and Climate Change Strategy and the Minister of Energy, Mines and Petroleum resources to decline

to issue an environmental assessment certificate for the Project. KGHM have recently reopened an office in

Kamloops, B.C. to facilitate First Nation, community and governmental engagement in order to advance the project

towards a potential resubmission of the environmental application.

Abacus also holds an option on the Willow copper-gold property located near Yerington, Nevada in which it can

acquire up to a 75% ownership interest, and the contiguous Nev -Lorraine claims subject to a ten -year lease

agreement. In addition, Abacus holds a 15-year lease on the Jersey Valley gold property, near Battle Mt., Nevada.

For the latest reports and information on Abacus’ projects, please refer to the Company’s website at

www.amemining.com.

Forward-Looking Information

This release includes certain statements that are deemed “forward -looking statements”. All statements in this release, other than statements of

historical facts, that address events or developments that Abacus expects to occur, are forward-looking statements. Forward-looking statements are

statements that are not historical facts and are generally, but not always, identified by the words “expects”, “plans”, “anticipates”, “believes”, “intends”,

“estimates”, “projects”, “potential” and similar expressions, o r that events or conditions “will”, “would”, “may”, “could” or “should” occur. Although the

Company believes the expectations expressed in such forward -looking statements are based on reasonable assumptions, such statements are not

guarantees of future performance and actual results may differ materially from those in the forward-looking statements. Factors that could cause the

actual results to differ materially from those in forward -looking statements include changes to commodity prices, mine and metallur gical recovery,

operating and capital costs, foreign exchange rates, ability to obtain required permits on a timely basis, exploitation and e xploration successes,

continued availability of capital and financing, and general economic, market or business conditions. Investors are cautioned that any such statements

are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking

statements. Forward-looking statements are based on the beliefs, estimates and opinions of the Company's management on the date the statements

are made. Except as required by applicable securities laws, the Company undertakes no obligation to update these forward -looking statements in

the event that management's beliefs, estimates or opinions, or other factors, should change.

Neither 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.