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Increasing with Depth at Sunday Creek, Victoria, Australia

Drill Results

1305 – 1090 West Georgia Street, Vancouver, BC, V6E 3V7

Phone: +1 604 685 9316 / Fax: +1 604 683 1585

NEWS RELEASE May 16, 2023

Mawson’s Subsidiary SXG Intersects 1.2 m @ 121.8 g/t Au in Deepest Hole with Visible Gold

Increasing with Depth at Sunday Creek, Victoria, Australia

Vancouver, Canada — Mawson Gold Limited (“Mawson” or the “Company”) (TSX:MAW)

(Frankfurt:MXR) (PINKSHEETS: MWSNF) announces results from drillhole SDDSC064 (1.2 m @ 121.8 g/t

Au from 889.6 m ) from the deepest mineralization (830 m vertically below surface) and one of the

two highest grade intersections to date, and a 115 m down-dip extension from SDDSC061 (12.0 m

@ 7.4 g/t AuEq incl 0.3 m @ 249.5 g/t AuEq) at the Sunday Creek Project in Victoria , Australia (Figure 1).

Of major importance is the increasing abundance of visible gold at depth at Sunday Creek (Photos 1 -4), as

is typical for epizonal deposits.

Sunday Creek is 100% owned by Southern Cross Gold (“SXG”), which is an ASX listed company owned 51%

by Mawson. Four rigs continue to drill both in the main drill area and up to 7.5 km along strike at the Tonstal

prospect with 16 holes being processed and analyzed and four drill rigs operating. Mineralization now extends

in the main drill area over 1,350 m from Christina in the far west to SDDSC063.

Highlights:

• SDDSC064 (Figs 3-6) drilled the deepest mineralization (830 m vertically below surface) and

one of the two highest grade intersections on the Sunday Creek project with increasing

abundance of visible gold (Photos 1-4). Highlights from five separate mineralized veins include:

• 0.4 m @ 48.5 g/t AuEq (44.6 g/t Au, 2.5 %Sb) from 715.8 m

• 0.3 m @ 16.3 g/t AuEq (15.6 g/t Au, 0.4 %Sb) from 725.8 m

• 0.9 m @ 5.6 g/t AuEq (5.2 g/t Au, 0.2 %Sb) from 882.7 m

• 1.2 m @ 121.8 g/t AuEq (121.8 g/t Au, 0.1 %Sb) from 889.6 m including:

0.5 m @ 158.5 g/t Au and 0.4 m @ 177.5 g/t Au

• 0.6 m @ 12.6 g/t AuEq (8.6 g/t Au, 2.5 %Sb) from 907.3 m

• As well as being the deepest mineralization on project, SDDSC064 extended mineralization

significantly, being a 115 m down-dip extension from SDDSC061 (12.0 m @ 7.4 g/t AuEq incl

0.3 m @ 249.5 g/t AuEq).

• Of major importance is the abundance of visible gold becoming increasingly significant at depth.

• Mawson owns 93,750,000 shares of SXG (51%), valuing its stake at A$52.5 million (C$47.3 million)

based on SXG’s closing price on May 16, 2023 AEST.

Noora Ahola, Mawson Interim CEO, states: “This is an exceptional result from team at Southern

Cross Gold. Not only is this the deepest hole SXG has drilled at Sunday Creek terminating at

1,013.5 m down hole, but it also produced the deepest mineralization at 830 m vertical depth

and the second highest grade intersection on the property. We are greatly encouraged by the

presence of visible gold at depths typical in other high quality epizonal deposits in the region and

that SDDSC064 extended mineralization with a 115 m down-dip extension from SDDSC061 (12.0

m @ 7.4 g/t AuEq incl 0.3 m @ 249.5 g/t AuEq).

Sunday Creek is proving to show great continuity and predictability in the vein sets that intersect

the host breccia dyke that runs 11 kms through the property . Increased strike lengths of up to

60 m of individual veins that recur with predicta ble frequency as demonstrated in this release

confirm our confidence in the ability of the project to deliver results that are comparable on a

global scale.”

Results Discussion

The Sunday Creek epizonal-style gold project is located 60 km north of Melbourne within 19,365 hectares of

granted exploration tenements. SXG is also the freehold landholder of 133 hectares that forms the key portion

in and around the drilled area at the Sunday Creek Project.

Sunday Creek has a n 11 km mineralized trend that extends beyond the main drill area and is defined by

historic workings and soil sampling which is being drill tested for the very first time with the fourth drill rig

which mobilized to the Tonstal prospect 7.5 kms to the northeast a month ago.

SDDSC064 (collar azimuth 239.6 degrees), drilled in the Rising Sun area of Sunday Creek, was designed to

extend mineralization to depth as a scissor hole (drilled in an opposite direction) to SDDSC050 (collar azimuth

077 degrees) (305.8 m @ 2.4 g/t AuEq). It achieved this and delivered new and exciting data on multiple

levels:

1. Discovered the deepest mineral ization on project (830 m vertically below surface), with

SDDSC064 the first hole to exceed 1 km in length on the project, terminating at 1,013.5 m.

2. One of the two highest grade intersections on project (after SDDSC046 @ 2.1 m @ 121.6 g/t

AuEq).

3. Defined significant extensions to known mineralization:

a. At its lower levels SDDSC064 (1.2 m @ 121.8 g/t AuEq) was a 115 m down dip extension

from SDDSC061 (12.0 m @ 7.4 g/t AuEq incl 0.3 m @ 249.5 g/t AuEq)

4. Demonstrated the high frequency of mineralized veins:

a. Five high-grade NW veins intersected over 100 m hor izontal true thickness (within 192 m

down hole width), implying a vein frequency each 20 m on average.

5. Demonstrated continuity across multiple high -grade veins in a 430 m (down dip) x 180

m (wide) and 60 m (strike) area beneath drill hole SDDSC050:

a. At its upper levels SDDSC064 (0.4 m @ 48.5 g/t AuEq from 715.8 m and 0.3 m @ 16.3 g/t

AuEq from 725.8 m) showed the NW mineralized veins strike length increases at depth with

the same vein drilled in SDDSC050 (9.0 m @ 7.3 g/t AuEq from 712.0 m including 1.5 m @

41.5 g/t AuEq) located 60 m along strike to the northwest.

6. Drilled a broad and extensive halo to high grade gold with low antimony and higher

arsenopyrite:

a. 212.8 m @ 1.0 g/t Au 0.04% Sb from 715.8 (no lower cut).

Further discussion and analysis of the Sunday Creek project by Southern Cross Gold is available on the SXG

website at www.southerncrossgold.com.au

Figures 1-6 show project location, plan, longitudinal and cross -sectional views of drill results reported here

and Tables 1–3 provide collar and assay data. The true thickness of the mineralized intervals reported are

interpreted to be approximately 60-70% of the sampled thickness. Lower grades were cut at 0.3 g/t Au lower

cutoff over a maximum width of 3 m with higher grades cut at 5.0 g/t Au cutoff over a maximum of 1 m

width, unless otherwise stated.

Update on Current Drilling

Drilling with four rigs is in progress at Sunday Creek at the Rising Sun and Apollo prospects and also 7.5 km

north-east at the Tonstal prospect. Sixteen new holes (SDDSC066 - 75 and SDDTS001-6) are currently being

geologically processed and analyzed, with three holes (SDDSC070, 7 3, 74, and SDDTS007) in drill progress

(Figure 2). SDDSC068 has been temporarily halted at 959.4 m below Apollo, awaiting an upgrade to a new

drill feed rail to allow deeper drilling to continue.

Technical Background and Qualified Person

The Qualified Person, Michael Hudson, Executive Chairman and a director of Mawson Gold, and a Fellow of

the Australasian Institute of Mining and Metallurgy, has reviewed , verified and approved the technical

contents of this release.

Analytical samples are transported to the Bendigo facility of On Site Laboratory Services (“On Site”) which

operates under both an ISO 9001 and NATA quality systems. Samples were prepared and analyzed for gold

using the fire assay technique (PE01S method; 25 gram charge), followed by measuring the gold in solution

with flame AAS equipment. Samples for multi-element analysis (BM011 and over-range methods as required)

use aqua regia digestion and ICP -MS analysis. The QA/QC program of Southern Cross Gold consists of the

systematic insertion of certified standards of known gold content, blanks within interpreted mineralized rock

and quarter core duplicates. In addition, On Site inserts blanks and standards into the analytical process.

MAW considers that both gold and antimony that a re included in the gold equivalent calculation (“AuEq")

have reasonable potential to be recovered at Sunday Creek, given current geochemical understanding,

historic production statistics and geologically analogous mining operations. Historically, ore from Sunday

Creek was treated onsite or shipped to the Costerfield mine, located 54 km to the northwest of the project,

for processing during WW1. The Costerfield mine corridor, now owned by Mandalay Resources Ltd contains

two million ounces of equivalent gold (Mandalay Q3 2021 Results), and in 2020 was the sixth highest-grade

global underground mine and a top 5 global producer of antimony.

SXG considers that it is appropriate to adopt the same gold equivalent variables as Mandalay Resources Ltd

in its Mandalay Technical Report, 2022 dated 25 March 2022. The gold equivalence formula used by Mandalay

Resources was calculated using recoveries achieved at the Costerfield Property Brunswick Processing Plant

during 2020, using a gold price of US$1,700 per ounce, an antimony price of US$8,500 per tonne and 2021

total year metal recoveries of 93% for gold and 95% for antimony, and is as follows: 𝐴𝑢𝐸𝑞 = 𝐴𝑢 (𝑔/𝑡) +

1.58 × 𝑆𝑏 (%).

Based on the latest Costerfield calculation and given the similar geological styles and historic toll treatment

of Sunday Creek mineralization at Costerfield, SXG considers that a 𝐴𝑢𝐸𝑞 = 𝐴𝑢 (𝑔/𝑡) + 1.58 × 𝑆𝑏 (%) is

appropriate to use for the initial exploration targeting of gold-antimony mineralization at Sunday Creek.

For previously reported exploration results referenced in this news release, refer to the following:

March 30, 2023 SDDSC061

About Mawson Gold Limited (TSX:MAW, FRANKFURT:MXR, OTCPINK:MWSNF)

Mawson Gold Limited is an exploration and development company. Mawson has distinguished itself as a leading Nordic exploration

company with its 100% owned flagship Rajapalot gold -cobalt project in Finland, and right to earn into the Skellefteå North gold

project in Sweden. Ma wson also currently owns 51% of Southern Cross Gold Ltd (ASX:SXG) which in turn owns or controls three

high-grade, historic epizonal goldfields covering 470 km2 in Victoria, Australia.

About Southern Cross Gold Ltd (ASX:SXG)

Southern Cross Gold holds the 100%-owned Sunday Creek project in Victoria and Mt Isa project in Queensland, the Redcastle and

Whroo joint ventures in Victoria, Australia, and a strategic 10% holding in ASX-listed Nagambie Resources Limited (ASX:NAG) which

grants SXG a Right of First Refusal over a 3,300 square kilometer tenement package held by NAG in Victoria.

On behalf of the Board,

"Noora Ahola"

Noora Ahola, Interim CEO

Further Information

www.mawsongold.com

1305 – 1090 West Georgia St., Vancouver, BC, V6E 3V7

Mariana Bermudez (Canada), Corporate Secretary

+1 (604) 685 9316 [email protected]

Forward-Looking Statement

This news release contains forward -looking statements or forward -looking information within the meaning of applicable securities

laws (collectively, "forward-looking statements"). All statements herein, other than statements of historical fact, are forward-looking

statements. Although Mawson believes that such statements are reasonable, it can give no assurance that such expectations wil l

prove to be correct. Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate,

postulate, and similar expressions, or are those, which, by their nature, refer to future events. Mawson cautions investors t hat any

forward-looking statements are not guarantees of future results or performance, and that actual results m ay differ materially from

those in forward-looking statements as a result of various factors, including, Mawson’s expectations regarding its ownership interest

in Southern Cross Gold, capital and other costs varying significantly from estimates, changes in world metal markets, changes in

equity markets, the potential impact of epidemics, pandemics or other public health crises, including the current pandemic known as

COVID-19 on the Company’s business, risks related to negative publicity with respect to the Company or the mining industry in

general; exploration potential being conceptual in nature, there being insufficient exploration to define a mineral resource on the

Australian-projects owned by SXG, and uncertainty if further exploration will result in the determination of a mineral resource; planned

drill programs and results varying from expectations, delays in obtaining results, equipment failure, unexpected geological conditions,

local community relations, dealings with non-governmental organizations, delays in operations due to permit grants, environmental

and safety risks, and other risks and uncertainties disclosed under the heading "Risk Factors" in Mawson's most recent Annual

Information Form filed on www.sedar.com. Any forward-looking statement speaks only as of the date on which it is made and, except

as may be required by applicable securities laws, Mawson disclaims any intent or obligation to update any forward-looking statement,

whether as a result of new information, future events or results or otherwise.

Photo 1: SDDSC064 716.0 m showing visible gold along stibnite and arsenopyrite veinlets within quartz carbonate vein. Ticks show mm scale.

Photo 2: SDDSC064 725.8 m showing visible gold on the margin of a quartz carbonate vein with arsenopyrite. Ticks show mm scale.

Photo 3: SDDSC064 between 890.2-890.7 m showing visible gold within a quartz carbonate vein stockwork hosted by albitized and sericitized dioritic dyke. Minor fuchsite

(lime green) alteration in dyke. Field of view 30mm.

Photo 4: SDDSC064 between 890.2-890.7 m showing visible gold within a quartz carbonate vein hosted by albitized and sericitized dioritic dyke.

Drill core (NQ) is 47.6 mm wide.