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ASX Announcement Westgold Resources Limited

Corporate Updates

ASX Announcement

Westgold Resources Limited

ABN 60 009 260 306

ASX | TSX: WGX

T: +61 8 9462 3400

E: [email protected]

W: westgold.com.au

Level 6, 200 St Georges Terrace

Perth WA 6000

PO Box 7068, Cloisters Square WA 6850

23 July 2025

June 2025 Quarterly Exploration Results

82km of drilling and $9M invested in resource development and exploration in Q4, FY25

Perth, Western Australia , 23 July 2025: Westgold Resources Limited (ASX | TSX: WGX – Westgold or the

Company) is pleased to announce the results of exploration and resource development activities during Q4

FY25.

Highlights *

MURCHISON

The Starlight mine continues to deliver impressive drilling results from both the Nightfall and Starlight lodes:

■ 10.00m at 26.42g/t Au from 149.00m in NF1050GC01;

■ 4.43m at 264.37g/t Au from 111.00m and 15.15m at 17.11g/t Au from 173.00m in NF1050GC42;

■ 14.05m at 11.43g/t Au from 214.00m in ST825RD06;

■ 4.00m at 34.69g/t Au from 180.00m in ST840RD12; and

■ 7.50m at 17.04g/t Au from 123.00m in ST840RD22.

Exciting results from the emerging Polar Star lode at the Bluebird - South Junction mine include:

■ 3.03m at 157.10g/t Au from 270.00m in 25BLDD001.

Drilling at the high-grade Great Fingall mine shows the potential of the Golden Crown and Great Fingall Reefs

along with that of newer discoveries such as Sovereign:

■ 7.23m at 12.25g/t Au from 312.00m in 24GCDD017;

■ 7.76m at 6.56g/t Au from 312.00m in 24GFDD093; and

■ 15.96m at 23.17g/t Au from 264.00m in 24SVDD038A.

SOUTHERN GOLDFIELDS

At Beta Hunt, the maiden Mineral Resource Estimate for Fletcher zone Stage 1 exceeded expectations,

delivering 2.3Moz from 1km of the known 2km strike

Drilling within the Western Flanks zone at Beta Hunt reinforces Westgold’s view of the upside across this

under-drilled yet extensive gold system, with exceptional results including:

■ 8.03m at 101.72g/t Au from 8.00m in AWLINKDD-15AG;

■ 55.50m at 4.51g/t Au from 179.00m in AWLINKDD-24AG; and

■ 6.90m at 372.32g/t Au from 8.00m in WWSP4-31AG.

$9M spent on exploration and resource development in Q4 FY25 - with $43M invested for full FY25.

16 underground and 2 surface drill rigs operating.

* True width has not been calculated.

June 2025 Quarterly Exploration Results 2

Westgold Managing Director and CEO Wayne Bramwell commented:

“This quarter Westgold completed 82km of drilling and invested $9M in resource development and exploration.

The delivery of a maiden Mineral Resource Estimate of 2.3Moz from Stage 1 of the Fletcher Zone at Beta Hunt

was a major milestone and double the mid-point of the Stage 1 Exploration Target for Fletcher from just 1km of

the known 2km strike length.

The flow of strong drill results from our largest and emerging mines continues and shows the untapped value

within our existing Mineral Resource base . The results from Starlight, South Junction, Great Fingall and Beta

Hunt are outstanding and continue to build confidence in our portfolio .

Westgold will build on the $43M invested in exploration and resource development in FY25. In FY26 our drill

teams will continue to extend mine lives across the portfolio , test our best emerging exploration targets and

unlock the inherent value we hold across two of Western Australia’s most prolific goldfields."

Plate 1: Visible gold in hole 25BLDD001 targeting the Polar Star lodes (Bluebird – South Junction mine) from an

interval of 3.03m at 157.10g/t Au from 270.00m

June 2025 Quarterly Exploration Results 3

Overview

In Q4 FY25, Westgold invested $9M in exploration and resource definition across its portfolio. The Company

drilled a total of 81,561m, as summarised by the table below.

Table 1: Group Drilling Statistics - Q4 FY25

Region Diamond (m) RC Drilling (m) AC Drilling (m) Auger (m) Total (m)

Murchison 43,438 3,579 1,373 15 48,405

Southern Goldfields 30,702 2,454 0 0 33,156

Exceptional intercepts returned this quarter from drilling activities are listed below:

Table 2: Exceptional drilling intercepts returned in Q4 FY25 (+100 gram metre intervals)

Lode Hole Collar N Collar E Collar

RL Intercept (Downhole) From

(m) Dip Azi

Total

Lengt

h (m)

Gram

metres

Starlight

Nightfall NF1050GC01 7,199,054 636,388 52 10.00m at 26.42g/t Au 149 -12 109 170.6 264.24

NF1050GC40 7,199,055 636,388 53 26.10m at 6.62g/t Au 160 2 99 91.6 172.74

NF1050GC42 7,199,055 636,388 53 4.43m at 264.37g/t Au 111 3 88 54.9 1,171.15

15.15m at 17.11g/t Au 173 259.21

Starlight ST835GC02 7,198,562 636,544 -159 17.08m at 6.17g/t Au 26 16 33 51.7 105.35

ST835GC03 7,198,583 636,540 -159 9.62m at 14.35g/t Au 41 13 7 70 138.02

ST825RD06 7,199,024 636,446 -102 14.05m at 11.43g/t Au 214 -51 51 316.6 160.64

ST840RD12 7,198,701 636,410 -159 4.00m at 34.69g/t Au 180 -22 23 200.5 138.75

Great Fingall

Sovereign 24SVDD038A 6,961,714 584,227 141 15.96m at 23.17g/t Au 264 -53 264 317.42 369.79

Beta Hunt

Fletcher FF475SP-61AEA 6,543,693 375,041 -473.05 27.00m at 4.24g/t Au 472 -55 235 905.98 114.50

WF490DD-47AE 6,543,672 374,949 -483.95 50.00m at 2.83g/t Au 661 -49 262 952 141.50

Western

Flanks

AW325SP-04AG 6,544,549 374,490 -322.15 13.00m at 18.18g/t Au 124 -35 254 236.7 236.30

AWLINKDD-

15AG

6,544,332 374,724 -286.05 8.03m at 101.72g/t Au 8 -34 255 180.05 816.80

AWLINKDD-

20AG

6,544,332 374,724 -286.05 14.75m at 8.71g/t Au 214 -44 236 236.6 128.50

AWLINKDD-

24AG

6,544,332 374,722 -286.05 55.50m at 4.51g/t Au 179 -45 219 281.7 250.30

WWSP4-31AG 6,544,073 374,941 -397.89 6.90m at 372.32g/t Au 8 -36 248 281.7 2,569.00

Fletcher FF475SP-61AEA 6,543,693 375,041 -473.05 27.00m at 4.24g/t Au 472 -55 235 905.98 126.50

Bluebird

Bluebird 25BLDD066 7,043,942 641,579 47 6.71m at 15.50g/t Au 100 -44 101 148.82 104.01

Polar Star 25BLDD001 7,043,581 641,434 105 3.03m at 157.10g/t Au 270 11 113 308.5 476.01

South

Junction

25BLDD017 7,043,581 641,433 103 21.50m at 7.16g/t Au 185 -19 148 408.12 153.94

Westgold had 16 underground drill rigs and 2 surface drill rigs operating at the end of the quarter. The surface

drill rigs were operating at Fortnum and Reedy , and the underground rigs were operating at Starlight (3),

Bluebird (3), Great Fingall (2), Big Bell (1), Beta Hunt (6) and Two Boys (1).

June 2025 Quarterly Exploration Results 4

Murchison

Westgold drilled 48,405m in the Murchison in Q4 FY25.

Figure 1: Murchison location map

Resource Development Activities

Starlight (Fortnum)

Given the ongoing Resource Definition and production success at Nightfall, the Company has continued to

prioritise geology work in this area at its Starlight mine. This quarter Nightfall has once again provided a string

of high-grade results ahead of the production front of the mine, some of the most specular being:

 10.00m at 26.42g/t Au from 149.00m in NF1050GC01; and

 4.43m at 264.37g/t Au from 111.00m and 15.15m at 17.11g/t Au from 173.00m in NF1050GC42.

June 2025 Quarterly Exploration Results 5

Despite the ongoing prominence of Nightfall, the Starlight lodes continue to make a strong contribution to

output from the mine, with better results from Starlight this quarter including:

 14.05m at 11.43g/t Au from 214.00m in ST825RD06;

 4.00m at 34.69g/t Au from 180.00m in ST840RD12; and

 7.50m at 17.04g/t Au from 123.00m in ST840RD22.

Figure 2: Starlight schematic long-section showing better drill results returned in Q4 FY25

Bluebird-South Junction (Meekatharra)

At Bluebird - South Junction, the focus of drilling works has reflected the expanding mine scale. Drilling has

targeted the Bluebird lodes, the large-scale South Junction Mineral Resource and the growing Polar Star lodes,

with highlights including:

 6.71m at 15.50g/t Au from 100.00m in 25BLDD066 (Bluebird);

 3.03m at 157.10g/t Au from 270.00m in 25BLDD001 (Polar Star); and

 21.50m at 7.16g/t Au from 185.00m in 25BLDD017 (South Junction).

June 2025 Quarterly Exploration Results 6

Figure 3: Hole 25BLDD001 targeting the Polar Star lodes (Bluebird – South Junction mine) showing (a) interval of

3.03m at 157.10g/t Au from 270.00m and (b) example of visible gold from the interval

June 2025 Quarterly Exploration Results 7

Figure 4: Bluebird-South Junction schematic long-section showing select near mine drill results in Q4 FY25

Big Bell (Cue)

At Cue, the ongoing success of re-accessing the Big Bell Upper Cave (Upper Cave) has allowed Westgold to

allocate more focus to this area of the mine in the FY26 Big Bell mine plan. In Q4 FY25, production from the

Upper Cave totalled 60% of total mine output from Big Bell, validating this approach.

Given the Upper Cave’s increasing importance to the medium-term plan, Westgold has recommenced drilling

in this area of the mine, providing the data required for consistent and elevated rates of profitable production.

Results such those presented below highlight the significant opportunity that exists in the Upper Cave, which

is independent from the Lower Cave , located higher in the mine , and critically, already capitally and

operationally developed.

 21.20m at 3.20g/t Au from 19.00m in 25BBDD0003;

 12.03m at 5.68g/t Au from 25.00m in 25BBDD0015; and

 14.67m at 3.83g/t Au from 24.00m in 25BBDD0016.

June 2025 Quarterly Exploration Results 8

Figure 5: Big Bell schematic long-section showing better drill results returned in Q4 FY25

Great Fingall (Cue)

The early mining opportunity at Great Fingall was executed this quarter, with production starting from the

Great Fingall Flats, an area outside the scope of the Great Fingall Feasibility Study mine plan.

With the initial production milestone reached, Westgold has stepped up its drilling effort, with multiple rigs

defining and infilling early production areas from the Golden Crown and Great Fingall virgin stopes , as well as

advancing opportunities outside of the current mine plan such as the Sovereign Reef.

Better results returned from this work at Golden Crown in the current quarter include:

 7.23m at 12.25g/t Au from 312.00m in 24GCDD017; and

 8.22m at 6.68g/t Au from 194.00m in 25GCDD013.

At Great Fingall the high-grade nature of the primary orebody is demonstrated by results such as:

 7.76m at 6.56g/t Au from 312.00m in 24GFDD093; and

 6.27m at 7.75g/t Au from 270.00m in 24GFDD096.