Great Western Mining Corp. PlcLSE: GWMO

Issue of equity and grant of options

· Issued by Great Western Mining Corp. Plc

GREAT WESTERN MINING CORPORATION PLC

("Great Western", "GWM" or the "Company")

ISSUE OF EQUITY AND GRANT OF OPTIONS

Great Western Mining Corporation PLC (AIM: GWMO & ESM: 8GW) announces the issue of 67,051 new ordinary shares of €0.0001 each at Stg 3.46 pence per share ("Remuneration Shares") in settlement of part of the remuneration for Ed Loye, Chief Executive Officer, for the period July to September 2026. Under the terms of Mr. Loye's contract, part of his monthly remuneration is settled in shares and accrued on a monthly basis. The pricing for these shares is based on the 5-day VWAP for the last five days of trading, calculated on a monthly basis and will be settled quarterly.

In addition, the Company has granted options over 1,000,000 ordinary shares of €0.0001 each in the capital of the Company to John Arthur, Chief Financial Officer. The options have an exercise price of Stg 3.61 pence per ordinary share and have been granted pursuant to the terms of Mr Arthur's employment agreement. The options are exercisable in accordance with the terms of the Company's share option scheme.

Settlement and Dealing

Application will be made to the AIM Market of the London Stock Exchange ("AIM") and Euronext Growth for a total of 67,051 ordinary shares, which will rank pari passu with the Company's existing issued Ordinary Shares, to be admitted to trading. Dealings on AIM and Euronext Growth are expected to commence on or around 13 October 2026 ("Admission").

Total Voting Rights

In conformity with Regulation 20 of the Transparency (Directive 2004/109/EC) Regulations 2007, Great Western advises that the total number of ordinary shares of €0.0001 each in issue (with voting rights) will be 438,438,378 following the issue of the Remuneration Shares and the Warrant Shares. The Company does not hold any ordinary shares in treasury.

This figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in Great Western under the Transparency (Directive 2004/109/EC) Regulations 2007 and the Transparency Rules.

For further information visitwww.greatwesternmining.com or contact:

Notification of Transactions by Persons Discharging Managerial Responsibilities and Persons Closely Associated with them

[This form is required for disclosure of transactions under Article 19 of Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014 on market abuse (Market Abuse Regulation)]

1

Details of the person discharging managerial responsibilities/person closely associated

a)

Name

EDWARD LOYE

2

Reason for the notification

a)

Position/status

CHIEF EXECUTIVE OFFICER

b)

Initial Notification Amendment

Initial

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

GREAT WESTERN MINING CORPORATION PLC

b)

LEI

635400NZ1RTHSGDVNQ43

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument,

type of

instrument

Identification code

ORDINARY SHARES OF €0.0001 EACH

ISIN: IE000T78CHJ8

b)

Nature of the transaction

ISSUE OF ORDINARY SHARES

c)

Price(s) and volume(s)

ISSUE OF SHARES

Price(s)

Volume(s)

STG 3.46 PENCE

67,051

d)

Aggregated information

- Aggregated volume

- Price

NOT APPLICABLE

e)

Date of the transaction

6 OCTOBER 2026

f)

Place of the transaction

OFF MARKET

g)

Additional Information

NOT APPLICABLE

Notification of Transactions by Persons Discharging Managerial Responsibilities and Persons Closely Associated with them

[This form is required for disclosure of transactions under Article 19 of Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014 on market abuse (Market Abuse Regulation)]

1

Details of the person discharging managerial responsibilities/person closely associated

a)

Name

JOHN ARTHUR

2

Reason for the notification

a)

Position/status

CHIEF FINANCIAL OFFICER

b)

Initial Notification Amendment

Initial

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

GREAT WESTERN MINING CORPORATION PLC

b)

LEI

635400NZ1RTHSGDVNQ43

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument,

type of

instrument

Identification code

ORDINARY SHARES OF €0.0001 EACH

ISIN: IE000T78CHJ8

b)

Nature of the transaction

GRANT OF OPTIONS

c)

Price(s) and volume(s)

Price(s)

Volume(s)

STG 3.61 PENCE

1,000,000

d)

Aggregated information

- Aggregated volume

- Price

NOT APPLICABLE

e)

Date of the transaction

6 OCTOBER 2026

f)

Place of the transaction

OFF MARKET

g)

Additional Information

NOT APPLICABLE

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