Coinsilium Group Limited: Holding in Company

Please note that from 22 March 2021, the Standard TR-1 Form should be completed and submitted to the FCA via our Electronic Submission System (ESS) in relation to notifications of voting rights held in issuers whose shares are admitted to trading on UK regulated markets.

Holders of voting rights in issuers whose shares are admitted to trading on UK prescribed markets such as AIM market, can continue to use this form to send their notifications to those issuers. Alternatively, if they wish they can register on ESS to be able to notify to us, produce a TR-1 Form via ESS and submit the downloaded version to issuers with shares admitted to trading onprescribed markets.

More information on how to submit a TR-1 Form via ESS is available here

NOTIFICATION OF MAJOR HOLDINGS(to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible) i

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii:

Coinsilium Group Limited (LEI: 213800YP3S25YH3GQV31)

1b. Please indicate if the issuer is a non-UK issuer(please mark with an “X” if appropriate)

Non-UK issuer

X

2. Reason for the notification (please mark the appropriate box or boxes with an “X”)

An acquisition or disposal of voting rights

X

An acquisition or disposal of financial instruments

An event changing the breakdown of voting rights

Other (please specify) iii:

3. Details of person subject to the notification obligation iv

Name

Adam Fletcher

City and country of registered office (if applicable)

Not applicable (natural person)

4. Full name of shareholder(s) (if different from 3.) v

Name

Not applicable

City and country of registered office (if applicable)

Not applicable

5. Date on which the threshold was crossed or reached vi:

02/10/2026

6. Date on which issuer notified (DD/MM/YYYY):

02/10/2026

7. Total positions of person(s) subject to the notification obligation

% of voting rights attached to shares (total of 8. A)

% of voting rights through financial instruments
(total of 8.B 1 + 8.B 2)

Total of both in % (8.A + 8.B)

Total number of voting rights held in issuer (8.A + 8.B) vii

Resulting situation on the date on which threshold was crossed or reached

3.05%

0%

3.05%

14,993,190

Position of previous notification (if

applicable)

N/A

N/A

N/A

N/A

9. Information in relation to the person subject to the notification obligation (please mark the

applicable box with an “X”)

Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer xiii

X

Full chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held starting with the ultimate controlling natural person or legal entity (please add additional rows as necessary) xiv

Name xv

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

10. In case of proxy voting, please identify:

Name of the proxy holder

The number and % of voting rights held

The date until which the voting rights will be held

11. Additional information xvi

Percentage calculated using 491,624,495 ordinary shares in issue, as stated in the Company's Total Voting Rights announcement of 27 February 2026 and its August 2026 investor presentation. The notifying person's holding was previously below the 3% notification threshold (approximately 13,000,000 shares); this notification reflects an increase through 3% following a purchase of shares on 02/10/2026. Contact: Adam Fletcher, tel. 07956 858697, email adamdfletcher@outlook.com.

Place of completion