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SILVER MOUNTAIN DISCOVERS NEW HIGH GRADE COPPER VEIN AND HITS IMPRESSIVE PRECIOUS METAL GRADES AT ITS RELIQUIAS MINE, PERU Key Highlights – Initial drilling on the Natividad Vein and mineral resource expansion drilling at

Drill Results

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SILVER MOUNTAIN DISCOVERS NEW HIGH GRADE COPPER VEIN AND HITS IMPRESSIVE PRECIOUS

METAL GRADES AT ITS RELIQUIAS MINE, PERU

Key Highlights – Initial drilling on the Natividad Vein and mineral resource expansion drilling at

Sacasipuedes vein system

Drill Hole SMR135-23-SCS (newly identified Natividad, or “NAT” vein)

1.55 m @ 81 g/t Ag, 2.51% Pb, 4.57% Zn, 1.80% Cu and 0.25 g/t Au, including

1.00 m @ 106 g/t Ag, 3.37% Pb, 5.84% Zn, 2.56% Cu and 0.09 g/t Au

Drill Hole SMR140-23-SCS (NAT vein)

2.20 m @ 42 g/t Ag, 2.79% Pb, 3.84% Zn, 0.75% Cu and 0.06 g/t Au, including

1.00 m @ 62 g/t Ag, 5.40% Pb, 4.70% Zn, 0.98% Cu and 0.06 g/t Au

Drill Hole SMR140-23-SCS (mineralized breccia)

0.60 m @ 1,319.55 g/t Ag, 0.86% Pb, 2.82% Zn, 0.03% Cu and 6.19 g/t Au, including

0.30 m @ 2,623.00 g/t Ag, 1.68% Pb, 5.60% Zn, 0.06% Cu and 12.20 g/t Au

TORONTO, CANADA, Wednesday, September 27, 2023 – Silver Mountain Resources Inc . (“Silver Mountain” or

“the Company”) (TSXV: AGMR; OTCQB: AGMRF) is pleased to announce the discovery of the Natividad vein, a

new copper rich vein at its 100% owned Reliquias mine, central Peru. Results from three of the initial four drill

holes completed at Natividad have been received, all part of Phase 2 of the Company´s 2023 infill and resource

expansion program. Drilling has also hit very high gold and silver grades near the Sacasipuedes vein, within a

mineralized breccia body with strong argillic alteration.

Alvaro Espinoza, CEO of Silver Mountain, stated, “It is very exciting to have discovered a new mineralized vein,

which has been named by our technical team as Natividad (or “NAT”). It is early days still, and the high grade

copper values and true thickness observed augur well for its possible incorporation into a future mine plan. Our

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geologists are adapting the program to further test this structure along strike and at depth, and we will provide

results as we receive them. Discovering a new vein in a historic district such as Reliquias proves once again that

this project not only has a solid resource base on which to prepare a mine plan to re-start operations, but also has

significant exploration upside to grow it further.”

Mr Espinoza continued, “The extremely high silver and gold grades found above the main Sacasipuedes vein is

also exciting as it proves, once again, that bonanza type grades exist outside of the current mineral resource

boundaries. We look forward to test the continuity of this n ew high grade hit in our ongoing underground drill

program.”

Phase 2 of the 2023 drill program consists of 12,500 metres of NQ and HQ drilling aimed at infilling and growing

the Company´s current mineral resource estimate (see news release dated April 12th, 2023 ). So far, drilling crews

have completed approximately 7,600 metres of this program with two underground rigs, and the Company has

received results from 18 drill holes (see also news releases dated July 19th and August 16th, 2023).

Discussion of 2023 Drilling Results

The Company has so far completed 22 drill holes on the Sacasipuedes and Perseguida vein systems from three

underground drill platforms, two from Sacasipuedes and one from Perseguida. The Natividad discovery was made

through drilling originally aimed at the Sacasipuedes vein, the results of which are also included in this release.

Details on the location of the underground drill platforms and drill traces are found in Figure 1. Table 1 also shows

a summary of the results announced in this news release.

Figure 1: Drill Hole Location Map of the 2023 Drill program

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Number Drill

Platform Hole ID From To Interval True

Width1 Gold Silver Lead Zinc Copper Ag_Eq2 Vein

Number Drill

Platform Drill hole m m m m g/t g/t % % % Oz/t

9 C-39

SMR-135-23-SCS 427.25 428.00 0.75 0.67 1.11 5.63 0.30 0.59 0.06 3.70 SCS

including 427.60 428.00 0.40 2.05 3.90 0.24 0.42 0.05 5.72

493.95 495.50 1.55 1.36 0.25 80.98 2.51 4.57 1.80 13.58 NAT

including 493.95 494.95 1.00 0.09 106.00 3.37 5.84 2.56 17.67

14 C-39

SMR-140-23-SCS 105.25 105.85 0.60 6.19 1319.55 0.86 2.82 0.03 60.31

including 105.25 105.55 0.30 12.20 2623.00 1.68 5.60 0.06 119.63

443.95 444.45 0.50 0.41 0.06 79.10 7.39 13.19 0.43 20.07 SCS

540.25 542.45 2.20 1.76 0.06 42.03 2.79 3.84 0.75 8.69 NAT

including 540.25 541.25 1.00 0.80 0.06 61.80 5.40 4.70 0.98 12.61

19 C-33

SMR-146-23-SCS 303.00 303.65 0.65 0.49 0.04 28.50 0.25 0.34 0.17 1.94 SCS

462.55 463.20 0.65 0.62 0.04 49.60 4.36 2.20 0.40 7.83 NAT

Notes

1True thicknesses are shown only where they can be determined.

2 Silver equivalent (Ag_Eq ) grades are calculated using metal prices of: silver US$23.30/oz., gold US$1764/oz, copper US$9419/tm, lead

US$2188/tm and zinc US$2813/tm. Silver equivalent grade is calculated as Ag_Eq (oz/t) = (Ag (oz/t) + (Au (g/t) * 2.40) + (C u (%) * 2.70) +

(Pb (%) * 0.80) + (Zn (%) * 0.80). Metal recoveries have not been applied in the silver equivalent value calculation.

Table 1: Location and summary of results from the Natividad vein

The Natividad vein is a newly identified mineralized structure found up to 100 metres below the Sacasipuedes

vein (“SCS”). Company geologists believe that Natividad´s strike is oblique to the SCS vein, likely subparallel to

the Matacaballo vein, and with a northerly dip . The mineralization is similar to the other veins in Reliqui as, but

with significantly higher quantities of chalcopyrite resulting in much higher grade copper grades than observed

elsewhere. Company geologists interpret this style of mineralization as a separate event to the other veins drilled

so far at Reliquias, suggesting that this deposit hosts a long -lived and multi -phase mineralization system. The

Natividad vein has now been identified in four drill holes, spaced up to approximately 85 metres apart, and further

drilling along strike and at depth is planned. Drilling has so far tested approximately 150 metres of strike length of

Natividad, and it remains open laterally and vertically. Results from three drill holes have been received and are

shown in Figure 2, a longitudinal section of the Natividad vein with the four completed drill holes.

Before hitting the Natividad vein, drill hole SMS-140-23-SCS intersected very high grade silver-gold at a shallow

depth and high grade zinc-lead mineralization on the Sacasipuedes (“SCS”). The shallower precious metal

mineralization is hosted in an argillically altered breccia with disseminated sulfides (see Figure 3), yielding some

of the highest grade silver -gold grades seen so far at Reliquias, with a silver equivalent grade of approximately

120 oz/t AgEq. Company geologists are currently working on the interpretation of this style of mineralization .

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Further drilling will be needed to determine if this breccia is linked to the the Sacasipuedes vein system, or if it

represents a new style of mineralization. The main Sacasipuedes intercept sits approximately 500 metres to the

southeast of the outer limit of the current mineral resource , and below the lowest levels of the Reliquias mine

historical workings. The SCS vein intercept of 0.50 metres with a combined Pb+Zn grade of 2 0.58%, is one the

highest grade polymetallic results found to date. Further drilling is planned to test the lateral and down dip

extensions of this intercept. Figure 4 shows a longitudinal section of the SCS vein with the location of this drill

hole.

Silver equivalent (Ag_Eq) grades are calculated using metal prices of: silver US$23.30/oz., gold US$1764/oz, copper US$9419/t m, lead

US$2188/tm and zinc US$2813/tm. Silver equivalent grade is calculated as Ag_Eq (oz/t) = (Ag (oz/t) + (Au (g/t) * 2.40) + (Cu (%) * 2.70) +

(Pb (%) * 0.80) + (Zn (%) * 0.80). Metal recoveries have not been applied in the silver equivalent value calculation.

Figure 2: Longitudinal section of the newly identified Natividad vein

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Figure 3: High grade Ag-Au intercept in drill hole SMR140-23-SCS

Silver equivalent (Ag_Eq) grades are calculated using metal prices of: silver US$23.30/oz., gold US$1764/oz, copper US$9419/t m, lead

US$2188/tm and zinc US$2813/tm. Silver equivalent grade is calculated as Ag_Eq (oz/t) = (Ag (oz/t) + (Au (g/t) * 2.40) + (Cu (%) * 2.70) +

(Pb (%) * 0.80) + (Zn (%) * 0.80). Metal recoveries have not been applied in the silver equivalent value calculation.

Figure 4: Longitudinal section of the Sacasipuedes vein showing grade-thickness values

SILVER MOUNTAIN RESOURCES INC.

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The 2023 drill program consists of two phases: an initial 3,500 metre phase using BQ diameter core (now

completed); and a second 12,500 meter phase using NQ and HQ diameter core. Full results from the BQ diameter

drilling have now been announced (see also March 29 th and July 19 th news release at https://agmr.ca/news/ ).

The second phase of infill drilling started in June 2023 and continues with 3 rigs working in the upper levels of the

MTC (Matacaballo), MTS (Meteysaca), PER (Perseguida), and SCS (Sacasipuedes) vein systems, where high

grade historical resource blocks remain outside of the current resource estimate . The Company plans to

incorporate these high -grade blocks in future resource estimates. Results will be announced as they become

available.

On Behalf of the Board of Directors of Silver Mountain Resources Inc.

Alvaro Espinoza, Chief Executive Officer

Qualified Person

Antonio Cruz Bermudez, , P. Geo. Registered Member MAIG is an independent consultant of the Company and

the Qualified Person (within the meaning of NI 43-101) responsible for the MRE, has reviewed and approved the

scientific and technical information contained in this news release.

About Silver Mountain

Silver Mountain Resources Inc. is a silver explorer and mine developer planning to restart production at the

Reliquias underground mine and currently exploring its 100% owned Castrovirreyna Project, consisting of over

60,000 hectares of highly prospective mineral claims and concessions located in the Huancavelica Region, central

Peru. For additional information regarding the Castrovirreyna Project, please refer to the Company’s technical

report, titled NI 43-101 Technical Report Mineral Resource Estimate for the Reliquias Mine, Huancavelica- Peru,

dated March 27, 2023, effective date March 18, 2023, available at https://sedar.com.

For further information about our drill program, including cross sections of the main veins with drill hole locations,

please refer to our corporate presentation, available on our website at www.agmr.ca

For Further Information Contact:

Alvaro Espinoza

Chief Executive Officer

[email protected]

Silver Mountain Resources Inc

82 Richmond Street East

Toronto, ON M5C 1P1

+51 954 475 319

[email protected]

SILVER MOUNTAIN RESOURCES INC.

TSX.V | AGMR

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SILVER MOUNTAIN RESOURCES INC. TSX.V | AGMR www.agmr.ca

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www.agmr.ca

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

Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Sampling, QA/QC, and Analytical Procedures

Silver Mountain follows systematic and rigorous sampling and analytical protocols which meet industry standards.

These protocols are summarized below.

All drill holes are diamond core holes with BQ, HQ or NQ core diameters. Drill core is collected at the underground

drill site where recovery measurements are taken before the core is transported by truck to the core logging facility

at the Caudalosa Grande mine camp, where it is photographed and geologically logged. The core is then cut in

half with a diamond saw blade with half the sample retained in the core box for future reference and the other half

placed into a pre-labelled plastic bag, sealed with a plastic zip tie, and identified with a unique sample number.

The core is typically sampled over a 1 - 2 metre sample interval unless the geologist determines the presence of

an important geological contact. The bagged samples are then store d in a secure area pending shipment to a

certified laboratory sample preparation facility.

Rock channel samples were collected with an electric percussion hammer and do not exceed 1.0 m in length.

Channels are broken at obvious geologic boundaries to cor rectly separate rock types and mineralization styles.

The sample bags were sealed with a plastic zip tie and identified with a unique sample number, pending shipment

to a certified laboratory sample preparation facility.

Samples are sent by batch to the ALS laboratory in Lima for assay. Silver Mountain independently inserts certified

control standards, fine and coarse blanks, and duplicates into the sample stream to monitor data quality. These

standards are inserted “blindly” to the laboratory in the sample sequence prior to departure from the core storage

facilities. At the laboratory, samples are dried, crushed, and pulverized and then analyzed using a fire assay -AA

finish analysis for gold and a full multi -acid digestion with ICP -AES analysis for other elements. Samples with

results that exceed maximum detection values for the main elements of interest (Ag, Zn, Pb, Cu) are re-analyzed

using precise ore -grade ICP analytical techniques, while high gold values are re -analyzed by fire assay with a

gravimetric finish.

Forward Looking Statements

This news release contains forward-looking statements and forward-looking information within the meaning of

Canadian securities legislation (collectively, "forward-looking statements") that relate to Silver Mountain’s

current expectations and views of future events. Any statements that express, or involve discussions as to,

expectations, beliefs, plans, objectives, assumptions or future events or performance (often, but not always,

through the use of words or phrases such as "will likely result", "are expected to", "expects", "will continue", "is

anticipated", "anticipates", "believes", "estimated", "intends", "plans", "forecast", "projection", "strategy",

"objective" and "outlook") are not historical facts and may be forward-looking statements and may involve

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estimates, assumptions and uncertainties which could cause actual results or outcomes to differ materially from

those expressed in such forward-looking statements. No assurance can be given that these expectations will

prove to be correct and such forward-looking statements included in this news release should not be unduly relied

upon. These statements speak only as of the date of this news release.

Forward-looking statements are based on a number of assumptions and are subject to a number of risks and

uncertainties, many of which are beyond Silver Mountain’s control, which could cause actual results and events

to differ materially from those that are disclosed in or implied by such forward-looking statements. Such risks and

uncertainties include, but are not limited to, the factors set forth under "Caution Regarding Forward-Looking

Statements" and "Risk Factors" in the Company’s Annual Information Form dated August 14, 2023, and other

disclosure documents available on the Company’s profile on SEDAR+ at www.sedarplus.ca. Silver Mountain

undertakes no obligation to update or revise any forward-looking statements, whether as a result of new

information, future events or otherwise, except as may be required by law. New factors emerge from time to time,

and it is not possible for Silver Mountain to predict all of them or assess the impact of each such factor or the

extent to which any factor, or combination of factors, may cause results to differ materially from those contained

in any forward-looking statement. Any forward-looking statements contained in this news release are expressly

qualified in their entirety by this cautionary statement.