Directorship Changes & Registered Address Change

Zinnwald Lithium plc / EPIC: ZNWD.L / Market: AIM / Sector: Mining

25 February 2026

Zinnwald Lithium plc

('Zinnwald Lithium' or the 'Company')

Directorship changes and change of registered address

Strengthening Board expertise in Germany at a key stage of the Project's development

Zinnwald Lithium plc, the European focused lithium company developing the integrated Zinnwald Lithium Project in Germany (the "Project"), is pleased to announce the appointment of Dominik Simler as a Non-Executive Director with immediate effect. Dominik replaces Graham Brown, who has stepped down from the Board.

Dominik brings over 20 years of pan-European investment and advisory experience, with a particular focus on the central European German speaking region ("DACH"). He has extensive experience in structuring and sourcing capital and working with stakeholders across various industries, having held senior roles at leading private equity and investment firms including AEA Investors, Investcorp International and L-GAM Advisors. Dominik is the Founder and Managing Director of Brenta Partners LLP and also serves as Senior Advisor for the DACH region at All Seas Capital.

Dominik holds a Bachelor of Arts (Honours) in International Business, Finance and Economics from the University of Manchester. He holds German and British nationality.

Anton du Plessis CEO of Zinnwald Lithium plc, commented, "We are delighted to welcome Dominik to the Board. His extensive experience in the German market, strong network across European capital providers, and deep understanding of navigating complex funding and stakeholder engagement processes, make him an excellent addition at this pivotal stage in the development of the integrated Zinnwald Lithium Project. I would also like to thank Graham for his valuable contribution to the Company and wish him well for the future."

AIM Rule 17 Disclosures

The following details in relation to the appointment of Dominik Simler are disclosed in accordance with AIM Rule 17 and Schedule 2(g) of the AIM Rules:

Dominik Pascal Simler (aged 48) has held the following directorships and/or partnerships in the past five years.

Dominik Simler holds 118,100 ordinary shares in the Company.

There is no further information to be disclosed in relation to Dominik Simler's appointment pursuant to AIM Rule 17 or Schedule Two, paragraph (g) (i)-(viii) of the AIM Rules for Companies.

Change of registered address

The Company announces that its registered address is now c/o Calculo Tax Audit Ltd, The Threshing Barn Manor Barns, Coates Lane, High Wycombe, Bucks, England, HP13 5UX.

*ENDS*

For further information, visit the Zinnwald Lithium website at www.zinnwaldlithium.com or sign up to our investor community at https://investors.zinnwaldlithium.com/auth/signup. Existing investors can view announcements and submit questions via https://investors.zinnwaldlithium.com/announcements.

Notes

Zinnwald Lithium plc (AIM: ZNWD) is an AIM-quoted company advancing one of Europe's largest integrated lithium projects, focused on supplying battery-grade lithium hydroxide (LiOH) to Europe's fast-growing electric vehicle and energy storage markets. The Company owns 100% of the Zinnwald Lithium Project in Saxony, Germany, strategically located at the centre of Europe's battery, automotive and chemical corridor.