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Millennial Potash Intersects 220m of Potash Mineralization in Drillhole BA-001-EXT at Its Banio Potash Project in Gabon

Drill Results

Millennial Potash Intersects 220m of Potash

Mineralization in Drillhole BA-001-EXT at Its

Banio Potash Project in Gabon

West Vancouver, British Columbia--(Newsfile Corp. - September 16, 2025) -

Millennial Potash Corp.

(TSXV: MLP) (OTCQB: MLPNF) (FSE: X0D) ("MLP", "Millennial" or the "Company")

is pleased to

announce that it has received analytical results for drillhole BA-001-EXT at its Banio Potash Project in

Gabon.

Hole BA-001-EXT intersected approximately 112.5m cumulative metres of carnallitite seams

averaging 15.9% KCl, using a 13% cut-off grade, within the overall 220m of potash mineralization.

The

112.5m of carnallitite seams are situated within evaporite Cycles II to Cycle VII which are hosted by the

Salt Sequence stratigraphy at the project.

This cumulative thickness of 112.5m compares very favourably

with the +70m cumulative thicknesses encountered in drillholes BA-002-EXT and BA-003.

Farhad Abasov, Millennial's Chair, commented, "Millennial is excited to announce the assay results for

hole BA-001-EXT, which showed over 50% thicker cumulative potash seams than what we drilled last

year. It is great to see a Cumulative zone of 6 potash Cycles

approximately 112m thick with an average

grade of 15.9% KCl.

This is significantly thicker than the approximately 70m thick Cumulative zone of

Cycles delineated in holes BA-002-EXT and BA-003 as reported in 2024 and demonstrates strong

continuity of the potash horizons.

The extensive potash mineralization in BA-001-EXT exceeded MLP's

expectations and supports the Company's expectation of the Banio Potash Project's further potential.

We are looking forward to receiving analytical results from hole BA-004 core samples.

The prominent

potash mineralization intersected in BA-001-EXT has the potential to significantly boost the project's

potash resources. We intend to update our Mineral Resource Estimate after all the assay results are

received."

Drillhole BA-001 is located in the centre of the North Target (see Fig. 1) and was originally drilled in

2017 to a depth of 364m where tachyhydrite and carnallitite were intersected but with variable bedding

orientations which were originally interpreted as representing a fault zone and the drilling was stopped.

MLP's geological model, based on extensive experience in the Gabon-Congo Basin, recognized this

variability in bedding as soft-sediment deformation and confined only to single evaporite cycles along

drill holes.

Drillhole BA-001-EXT represents the extension of BA-001 to 678m and 4 more evaporite

cycles with carnallitite seams from approximately 362m to a depth of 657m are present.

Figure 1

Drillhole location map, Banio Potash project

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

https://images.newsfilecorp.com/files/4674/266194_127e640394234a3e_001full.jpg

Two hundred and twenty-six (226) core samples from BA-001-EXT were submitted to the Saskatchewan

Research Council (SRC) laboratories for potash analysis.

Interpretation of the geology and distribution of

mineralization by the Millennial team and our potash consultants, ERCOSPLAN Ingenieurgesellschaft

Geotechnik und Bergbau mbH ("ERCOSPLAN"), defines six Evaporite Cycles (Cycle II to Cycle VII) in

BA-001-EXT which correlate and confirm the continuity of these same Cycles which were intersected in

drillholes BA-002 and BA-003.

The Cumulative Total of potash mineralization, primarily interbedded

carnallitite and halite, totals 220.25m averaging 10.4 % KCl with no grade cut-off applied (see Table 1)

Table 1 Potash Cycles with Carnallitite Seams intersected with no cut-off grade applied

Evaporite Cycle

Carnallitite Seams

From (m)

To (m)

Thickness (m)*

KCl (%)

Cycle VII

C1 to C7

362.40

518.10

155.70

9.51

Cycle VI

C1 to C2

565.35

607.50

42.15

14.28

Cycle V

C1 to C4

617.50

633.80

16.30

14.84

Cycle IV

C1

645.95

648.60

2.65

18.15

Cycle III

C1

652.95

656.40

3.45

17.21

Cumulative

Total

220.25

10.4

*Drilled thickness; true thickness to be determined

Application of a 13% KCl cut-off grade to the seam intersection data yielded a Cumulative Total seam

thickness of approximately 112.46m and an average grade of 15.9% KCl (see Table 2).

This cumulative

total exceeded management's expectations as similar Cycles and seams in BA-002-EXT and BA-003

totalled approximately 70m and the average grade of 15.9% KCl is consistent with the MRE completed

in 2024 (

see MLP Jan. 16, 2024, Press Release

).

Table 2 Potash Cycles with Carnallite Seams intersected with 13% KCl cut-off grade

Evaporite Cycle

Carnallitite Seams

From (m)

To (m)

Thickness (m)*

KCl (%)

Cycle VII

C7

362.40

372.55

10.15

13.75

C6

no reasonable thickness with grade

over 13 % KCl

C5

454.75

461.54

6.79

15.86

C4

469.00

475.25

6.25

15.40

C3

477.20

484.10

6.90

16.63

C2

490.00

510.45

20.45

19.11

C1

513.80

518.10

4.30

20.82

Cumulative Total-Cycle VII

54.69

17.16

Cycle VI

C2

565.35

589.75

24.40

14.19

C1

592.50

607.50

15.00

14.43

Cumulative Total-Cycle VI

39.40

14.30

Cycle V

C4

617.50

623.72

6.22

13.19

C3

624.80

626.00

1.20

19.15

C2

627.45

628.30

0.85

20.10

C1

629.80

633.80

4.00

14.98

Cumulative Total-Cycle V

12.27

14.84

Cycle IV

C1

645.95

648.60

2.65

18.15

Cumulative Total-Cycle IV

645.95

648.60

2.65

18.15

Cycle III

C1

652.95

656.40

3.45

17.21

Cumulative Total-Cycle III

652.95

656.40

3.45

17.21

Cumulative Total

13% cut-off

112.46

15.92

*

Drilled thickness; true thickness to be determined

The significant thicknesses of Cycles VII, VI, and V, 54.90m and 39.4m and 12.27m respectively, are

consistent with the same Cycles encountered in drillholes BA-002 and BA-003 some 4km and 1.5km to

the northeast and east of BA-001-EXT.

The increased thickness of Cycle VII is likely due to the soft-

sediment deformation during precipitation of the salt minerals that has resulted in local thickening of the

potash beds (see Fig. 1).

This continuity suggests strong potential for BA-001-EXT to add to the existing

resource calculated for the project as the 2024 Mineral Resource Estimate ("MRE") did not include any

resource associated with BA-001-EXT as the hole was incomplete (

see MLP Jan. 16, 2024, Press

Release

).

The objectives of drilling BA-001-EXT, and the overall Phase 2 program, which includes BA-004, were

to evaluate the presence of potash-rich horizons at depth and laterally to provide additional data for a

future updated MRE.

Identification of additional potash Cycles and seams outlined in BA-001-EXT has

extended the strike length of known potash mineralization to approximately 4km which could potentially

add significant tonnage to the existing resource calculated for the project which currently contains an

Indicated MRE of 657M tonnes grading 15.9% KCl and an Inferred MRE of 1.159B tonnes grading 16%

KCl (

see MLP Jan. 16, 2024, Press Release

).

In addition, based on preliminary logging of hole BA-004

where numerous potash Cycles and seams have been identified (

see MLP June 26, 2025 Press

Release

), this strike length could increase to approximately 8km.

Analytical results from the SRC

laboratory for BA-004 core sampling are pending.

In tandem with the potential resource increase, data

from the Phase 2 drill program may allow upgrading of some resources from Indicated to Measured

status and may possibly result in shifting Inferred tonnage to Indicated status. Samples from the recent

drillholes have been selected for dissolution test-work and geotechnical test-work which will be

incorporated in any future Feasibility Study.

QA/QC

Millennial employees follow standard operating and quality assurance procedures intended to ensure

that all sampling techniques and sample results meet international reporting standards. Procedures for

handling core samples begin with securing the potash-bearing PQ-HQ-sized core at the drill site in

plastic poly-tubing which is then thermally sealed.

Core is placed in rigid core boxes and transported to

Millennial's camp for geological logging, detailed geotechnical logging, and photographing.

Significant

intervals are dry cut in half for HQ core or quartered for PQ core, using a specially modified tungsten

carbide bladed core saw.

Half (HQ size) and quarter core (PQ size) samples are then double bagged

and thermally sealed prior to transporting to Libreville by Millennial personnel.

The remaining core is re-

sealed in plastic poly-tubing and the core boxes secured at Millennial's exploration camp in air-

conditioned containers to prevent deterioration of the potash minerals.

Upon arrival in Libreville core

samples are stored at Millennial's storage facility and then taken to the Gabon Ministry of Mines &

Energy where permission is obtained to export the samples.

The bagged samples are then carefully

packed into wooden crates and shipped via DHL to the Saskatchewan Research Council (SRC)

laboratory in Saskatoon.

This sampling procedure was initiated by ERCOSPLAN Ingenieurgesellschaft

Geotechnik und Bergbau mbH, Millennial's potash consulting firm, supervised by Millennial's Chief

Executive Officer Jason Wilkinson, M.Sc., Sebastiaan van der Klauw, EurGeol from ERCOSPLAN, and

periodically reviewed by Millennial Director, Peter J. MacLean, Ph.D., P. Geo.

Millennial is utilizing SRC's Potash ICP Analysis package designed for multi-element analysis of potash

samples.

Upon arrival at SRC Geoanalytical Laboratories, core samples are dried, and jaw crushed to

95% @ -2mm and 100 g sub sample is split out using a riffler and transferred to vials.

The subsample is

pulverized to 95 % @ -106 microns using a puck and ring grinding mill to create a pulp.

The grinding

mills are cleaned between groups using Quintus quartz.

The pulp is then transferred to a labelled plastic

snap top vial.

An aliquot of pulp is placed in a test-tube with 15 ml of 30°C DI water.

The sample is

shaken.

The soluble solution is then analyzed by ICP-OES.

The method is suitable for the soluble

analysis of commercial potash (Sylvite and Carnallite).

The samples are analysed for FeO (wt%), K

2

O,

Na

2

O, MgO, and CaO and a suite of trace elements. Br and Cl are determined using ICP-Ms and a

gravimetric determination of the insoluble content for each sample is made.

SRC's internal protocol

includes the insertion of internal standards and repeats, and review of this data shows no significant

deviation from the accepted values.

SRC Geoanalytical Laboratories has been certified by the

Standards Council of Canada (SCC) to conform to the requirements of ISO/IEC 17025:2005 (CAN-P-

4E).

The information in this news release has been reviewed and approved by Sebastiaan van der Klauw,

EurGeol of ERCOSPLAN and Peter J. MacLean, Ph.D., P. Geo, Director of the Company, both of whom

are Qualified Persons as that term is defined in National Instrument 43-101.

To find out more about Millennial Potash Corp. please contact Investor Relations at (604) 662 8184 or

email at

[email protected]

.

Keep up-to-date on Millennial Potash developments and join our online communities on:

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MILLENNIAL POTASH CORP.

"Farhad Abasov"

Chair of the Board of Directors

Neither the 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.

This document may contain certain "Forward-Looking Statements" within the meaning of the United

States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities laws. When

used in this news release, the words "anticipate", "believe", "estimate", "expect", "potential", "target,

"plan" or "planned", "forecast", "intend", "may", "schedule" and similar words or expressions identify

forward-looking statements or information. These forward-looking statements or information may relate

to future prices of commodities, accuracy of mineral or resource exploration activity, reserves or

resources, regulatory or government requirements or approvals including approvals of title and mining

rights or licenses and environmental (including land or water use), local community or indigenous

community approvals, the reliability of third party information, continued access to mineral properties or

infrastructure, changes in laws, rules and regulations in Gabon or any other jurisdiction which may impact

upon the Company or its properties or the commercial exploitation of those properties, currency risks

including the exchange rate of USD$ for Cdn$ or CFA or other currencies, fluctuations in the market for

potash or potash related products, changes in exploration costs and government royalties, export

policies or taxes in Gabon or any other jurisdiction and other factors or information. The Company's

current plans, expectations and intentions with respect to development of its business and of the Banio

Potash Project may be impacted by economic uncertainties arising out of any pandemic or by the

impact of current financial and other market conditions on its ability to secure further financing or funding

of the Banio Potash Project. Such statements represent the Company's current views with respect to

future events and are necessarily based upon a number of assumptions and estimates that, while

considered reasonable by the Company, are inherently subject to significant business, economic,

competitive, political, environmental and social risks, contingencies and uncertainties. Many factors, both

known and unknown, could cause results, performance or achievements to be materially different from

the results, performance or achievements that are or may be expressed or implied by such forward-

looking statements. The Company does not intend, and does not assume any obligation, to update these

forward-looking statements or information to reflect changes in assumptions or changes in

circumstances or any other events affecting such statements and information other than as required by

applicable laws, rules and regulations.

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

https://www.newsfilecorp.com/release/266194