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Founders Metals Upgrades Lower Antino to Advanced Target; Hits 65.9 m of 1.16 g/t Gold

Drill Results

Founders Metals Upgrades Lower Antino to

Advanced Target; Hits 65.9 m of 1.16 g/t Gold

Vancouver, British Columbia--(Newsfile Corp. - March 12, 2026) -

Founders Metals Inc.

(TSXV: FDR)

(OTCQX: FDMIF) (FSE: 9DL0) ("Founders" or the "Company") announces that Lower Antino has been

upgraded from Intermediate to Advanced Target status - the same internal classification* as Upper

Antino - at its Antino Gold Project in southeastern Suriname (Figure 1). The upgrade follows cumulative

drilling of 50 diamond drill holes including eight new holes reported here that continue to demonstrate

broad, continuous gold mineralization, highlighted by

65.9 metres (m) of 1.16 grams per tonne (g/t)

gold (Au)

within a broader envelope of

115.0 m of 0.83 g/t Au from surface

in drill hole LA046.

Highlights

Lower Antino upgraded to

Advanced Target

status with 50 drill holes released to date with an

additional 10 holes pending assays and further expansion drilling underway

Best intercept to date:

65.9 m of 1.16 g/t Au

within

115.0 m of 0.83 g/t Au from surface

(LA046)

Broad mineralized envelopes confirmed:

113.5 m of 0.34 g/t Au from surface

including

30.0 m

of 0.82 g/t Au

(LA044)

Intrusion-hosted gold mineralization intersected in all eight drill holes reported in this release;

mineralization remains open along strike and at depth

Colin Padget, President & CEO, commented,

"Lower Antino's upgrade from Intermediate to an

Advanced Target - now sharing the same classification as Upper Antino - reflects consistent, broad gold

mineralization across a growing number of drill holes. LA046 returning 65.9 metres of 1.16 g/t gold within

a 115-metre mineralized envelope is the best intercept to date at this target and underscores the scale

and continuity of the Lower Antino intrusion-hosted gold system. With gold in every hole and consistently

wide intercepts, Lower Antino is emerging as a meaningful contributor to the district's overall potential.

While our focus remains on exploration and expansion drilling, Lower Antino's advancement to the same

classification as Upper Antino means it is expected to be considered for inclusion in any future resource

estimate for the district."

Lower Antino - Upgraded to Advanced Target

The Company reports assay results from eight diamond drill holes (LA043 to LA050) at the Lower Antino

target, located approximately 3.5 km east of the Upper Antino deposit (Figure 1). All eight holes

intersected gold mineralization, with results highlighted by

65.9 m of 1.16 g/t Au

within

115.0 m of 0.83

g/t Au

in LA046 (Table 1). The 115-metre intercept in LA046 begins at surface and represents an up-

dip expansion of the previously released 90.0 m of 1.02 g/t Au in LA041, confirming the continuity and

growth potential of the mineralized zone.

Based on cumulative drilling results, Founders has upgraded Lower Antino from Intermediate Target to

Advanced Target status, ranking it on the same tier as Upper Antino in terms of overall target quality and

scale potential. The upgrade reflects the demonstrated continuity of gold mineralization across numerous

drill sections and identification of multiple parallel, northeast-trending mineralized zones over

approximately 1.9 km of drill-defined strike length within a broader 1.5 km by 2.8 km gold-in-auger

anomaly.

The target is open along strike and at depth with drilling ongoing to the south and southeast at regular

100 to 200 metre steps. Overall, gold mineralization remains consistent with previous Lower Antino drill

results and is hosted in intensely sericite-altered, sheared tonalite with disseminated pyrite and quartz-

pyrite veining. The southernmost hole in this release (LA050), intersected

24.0 m of 0.57 g/t Au

and

represents approximately 200 metres of southward expansion of the mineralized system. Assay results

are presented in Table 1, with drill hole locations in Table 2.

Lower Antino is one of two Advanced Targets within Founders' 102,360-hectare contiguous land

package, which hosts eight drill tested gold targets across the 55 km long Antino concession. The

upgrade of Lower Antino adds meaningful scale to the Company's growing inventory of drill-defined gold

mineralization at the district level. The Company will continue to systematically advance and upgrade

high-quality targets as defined by geological criteria linked to scale and growth potential.

*The Company's internal target classification system reflects drill density, demonstrated continuity of mineralization, and data sufficiency; it does not

correspond to NI 43-101 resource categories.

Figure 1: Antino Gold Project Property Map

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7574/288304_571962fb64ca9a3d_001full.jpg

Figure 2: Lower Antino Plan Map

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7574/288304_571962fb64ca9a3d_002full.jpg

Figure 3: Lower Antino cross-section through central gold trend.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/7574/288304_571962fb64ca9a3d_003full.jpg

Table 1: Lower Antino Drill Results

Drillhole

From (m)

To (m)

Interval (m)

Au (g/t)

Results from This Release

LA043

162.00

174.00

12.00

1.56

incl.

167.00

174.00

7.00

2.56

LA044

1.50

115.00

113.50

0.34

incl.

8.10

38.10

30.00

0.82

LA045

0.00

20.10

20.10

0.31

and

111.00

124.00

13.00

0.44

LA046

0.00

115.00

115.00

0.83

incl.

41.10

107.00

65.90

1.16

LA047

0.00

8.10

8.10

0.94

and

149.00

156.00

7.00

0.46

LA048

0.00

27.60

27.60

0.22

and

173.00

178.00

5.00

0.80

LA049

6.60

11.10

4.50

0.21

LA050

47.10

71.10

24.00

0.57

Previously Released Highlight Results

LA041

156.00

246.00

90.00

1.02

incl.

176.00

178.00

2.00

28.44

LA003

74.10

156.00

81.90

1.00

incl.

106.00

132.00

26.00

2.36

LA025

0.00

241.00

241.00

0.27

incl.

0.00

86.10

86.10

0.43

LA033

29.10

60.00

30.90

1.56

LA024

72.00

122.00

50.00

1.02

LA028

108.00

163.00

55.00

0.64

incl.

110.00

117.00

7.00

2.32

LA019

0.00

65.00

65.00

0.49

incl.

44.10

65.00

20.90

1.11

LA010

33.60

57.60

24.00

1.23

**Intervals are down-hole depths. True widths of mineralization are estimated to be approximately 85% of the down-hole interval based on currently

available results and observations. All are diamond drill holes. Average grades are calculated with un-capped gold assays, as insufficient drilling

has been completed to determine capping levels for higher grade gold intercepts. Composites are calculated using a 0.10 g/t Au cut-off grade with

<5.0 m of internal dilution of zero grade and a minimum composite length of 2.0 m. <0.2 g/t Au intercept are not included.

Table 2: Lower Antino Drill Hole Locations from This Release

Drillhole

Easting (m)

Northing (m)

Elevation (m)

Azimuth (°)

Dip (°)

Depth (m)

LA043

821605.33

401160.67

176.46

269.80

-50.20

212.14

LA044

821488.00

401166.00

177.47

270.20

-50.10

206.00

LA045

821484.00

401462.00

125.22

270.20

-50.20

302.00

LA046

821456.00

401365.00

152.33

270.00

-50.00

200.14

LA047

821535.00

401794.67

127.95

270.10

-50.20

263.11

LA048

821510.00

401683.00

147.21

269.80

-50.40

287.00

LA049

821606.67

401064.33

174.81

270.20

-50.20

320.00

LA050

821494.33

401065.67

176.94

270.20

-50.10

212.00

*The coordinate reference system is WGS 84, UTM zone 21N (EPSG 32621)

About Founders Metals Inc.

Founders Metals Inc. is a Canadian gold exploration company building a district-scale gold camp in

southeastern Suriname. The Company controls a 102,360-hectare contiguous land package in the

Guiana Shield - the largest uninterrupted package of highly prospective greenstone belt geology in the

region. Founders is backed by strategic partnerships with Gold Fields and B2Gold and is executing one

of the most active exploration programs in the global junior gold sector. The Company is committed to

responsible exploration, strong community engagement, and disciplined capital allocation as it

advances Suriname's next major gold camp.

ON BEHALF OF THE BOARD OF DIRECTORS,

Per: "Colin Padget"

Colin Padget

President, Chief Executive Officer, and Director

Contact Information

Katie MacKenzie, Vice President, Corporate Development

Tel: +1 306 537 8903 |

[email protected]

Cautionary Statement Regarding Forward-Looking Information

This press release contains "forward-looking information" within the meaning of applicable Canadian

securities legislation, including statements regarding long term value creation and the Company's

prospects. Forward-looking information can generally be identified by words such as "plans", "expects",

"is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", "believes", or

variations indicating that certain actions, events or results "may", "could", "would", "might" or "will" occur

or be achieved.

Forward-looking statements are based on management's current expectations and reasonable

assumptions but are subject to business, market, and economic risks, uncertainties, and contingencies

that may cause actual results to differ materially from those expressed or implied, including: general

business and economic uncertainties; exploration results; mining industry risks; and other factors

described in the Company's most recent annual management discussion and analysis. Although the

Company has attempted to identify important factors that could cause actual results to differ materially,

other factors may cause results not to be as anticipated. There can be no assurance that forward-looking

information will prove accurate, as actual results and future events could differ materially from those

anticipated. Accordingly, readers should not place undue reliance on forward-looking information. The

Company does not undertake to update any forward-looking information except in accordance with

applicable securities laws. 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.

All material information on Founders Metals can be found at

www.sedarplus.ca

.

Quality Assurance and Control

Samples were analyzed at FILAB Suriname, a Bureau Veritas Certified Laboratory in Paramaribo,

Suriname (a commercial certified laboratory under ISO 9001:2015). Samples are crushed to 75%

passing 2.35 mm screen, riffle split (700 g) and pulverized to 85% passing 88 µm. Samples were

analyzed using a 50 g fire assay (50 g aliquot) with an Atomic Absorption (AA) finish. For samples that

return assay values over 5.0 grams per tonne (g/t), another cut was taken from the original pulp and fire

assayed with a gravimetric finish. Founders Metals inserts blanks and certified reference standards in

the sample sequence for quality control. External QA-QC checks are performed at ALS Global

Laboratories (Geochemistry Division) in Lima, Peru (an ISO/IEC 17025:2017 accredited facility). A

secure chain of custody is maintained in transporting and storing of all samples. Drill intervals with visible

gold are assayed using metallic screening. Rock chip samples from outcrop/bedrock are selective by

nature and may not be representative of the mineralization hosted on the project.

Qualified Persons

The technical content of this news release has been reviewed and approved by Michael Dufresne,

M.Sc., P.Geol., P.Geo., an independent qualified person as defined by National Instrument 43-101.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/288304