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REG — CLS Holdings PLC — Notification of Major Holdings

For best results when printing this announcement, please click on link below: RNS Number: 4451V CLS Holdings PLC 18 September 2026 TR-1: Standard form for notification of major holdings 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 CLS Holdings plc which voting rights are attached (ii): 1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate) Non-UK issuer 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 Volare Group AG City and country of registered office (if applicable) Suhr, Switzerland 4. Full name of shareholder(s) (if different from 3.) (v) Name City and country of registered office (if applicable) 5. Date on which the threshold was crossed or reached (vi): 17/09/2026 6. Date on which issuer notified (DD/MM/YYYY

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For best results when printing this announcement, please click on link below: RNS Number: 4451V CLS Holdings PLC 18 September 2026 TR-1: Standard form for notification of major holdings 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 CLS Holdings plc which voting rights are attached (ii): 1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate) Non-UK issuer 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 Volare Group AG City and country of registered office (if applicable) Suhr, Switzerland 4. ) (v) Name City and country of registered office (if applicable) 5. Date on which the threshold was crossed or reached (vi): 17/09/2026 6.

Date on which issuer notified (DD/MM/YYYY): 17/09/2026 7. Total positions of person(s) subject to the notification obligation % of voting rights attached to shares (total of 8. 21% 32'964'689 applicable) 8. 03% 0 SUBTOTAL 8.

1R (1) (a) Type of financial instrument Expiration Exercise/ Number of voting rights that may be acquired if the instrument is % of voting rights date (x) Conversion Period (xi) exercised/converted. SUBTOTAL 8. 2 9. 03% 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) Place of completion Suhr, Switzerland Date of completion 17/09/2026 This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply.

com) or visit ( ). RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy ( ). END HOLFZGMLDRFGVZM