TURNSTONE RESOURCES LTD — Board/Management Information 2022

Dec 19, 2022

ASX ANNOUNCEMENT

20 December 2022

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APPOINTMENT OF LAWRENCE BERTHELET AS CHIEF OPERATING OFFICER

South Harz Potash Limited (ASX:SHP) ( South Harz or the Company ) advises that following the resignation of Jason Wilkinson, the Company has appointed non-executive director, Lawrence Berthelet, to the role of Chief Operating Officer ( COO ), effective 1 January 2023. This appointment is a further advancement of the Company’s renewal and optimisation initiatives with respect to the Board.

Lawrence was appointed to the South Harz Board and Technical Committee during October 2022 (refer South Harz ASX release dated 10 October 2022, Non-Executive Director Appointment ). He is a deeply experienced executive with over 35 years in the global potash industry, including a demonstrated track record of successful, large-scale operational project delivery and management.

Lawrence has been involved in all aspects of potash mine advancement from early project studies through to contracting and development. Over his career he has been responsible for both building and operating potash mines, including direct responsibility for surface and underground operations. This included leading The Mosaic Company’s US$2.9B K3 Mine Expansion Project, which was completed on budget and ahead of time. His experience also includes leading projects as an EPCM provider, including starting and managing an EPCM office in Saskatchewan, responsible for front end studies of potash projects worldwide.

In Lawrence’s most recent role as Head of the Mining Division at EuroChem Group, he was responsible for the production of 3.0M TPA of muriate of potash (MOP), along with the successful completion of major capital projects including shaft sinking, underground development and process facility optimization. Included in this role, was the front-end scoping, PFS and DFS studies for new potash developments in Russia.

Incumbent COO, Jason Wilkinson, will remain with South Harz for a transition period before his departure. Lawrence will step down from the board and his role as a non-executive director of the Company on 31 December 2022, the same day as Jason’s departure.

South Harz Managing Director, Luis da Silva, commented:

“On behalf of the Board and all shareholders I would like to sincerely thank Jason for his significant contribution to South Harz over the last seven years. Jason has been integral to bringing the Company to prominence and delivering the Ohmgebirge Scoping Study, which evidences the tremendous latent commercial and social potential within the asset. We wish Jason the very best in his new role and continued success.”

“Lawrence’s appointment as COO provides South Harz with the essential skills, project delivery and leadership experience required for the optimal advancement of the Ohmgebirge Development, including all key PreFeasibility and Definitive Feasibility Study workstreams. His integration into, and leadership of, a full Feasibility Study program is expected to align with the existing project schedule, targeting delivery of a DFS in the coming two years.”

CONTACT DETAILS ABN: 64 153 414 852 586.1M Ordinary Shares U13, W: southharzpotash.com ASX Code: SHP 123.8M Unlisted Options 6 – 10 Douro Place West Perth WA 6005 E: info@southharzpotash.com ASX Code (Options): SHPO 46.2M Listed Options P: +61 (0) 408 447 493 Frankfurt Code: A2DWXX 0.8M Performance Rights

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“The South Harz team and I have already spent time on the ground with Lawrence and we look forward to advancing this large-scale, high quality potash opportunity towards development and production.”

Incoming COO Lawrence Berthelet commented :

“The opportunity to restart potash mining in the Thuringia area is the right combination of timing and opportunity. The ore bodies have been proven with technology in both construction and operations having advanced since the mines in the area were closed. As a new potash facility, the South Harz Project, is already a step ahead in local technical and operational understanding of what it will take to make this operation a reality.”

“Having spent time personally in the area, and with a plan to base my role in Germany, I am happy to be working to increase the production of MOP from this community. I am eager to assist in developing a successful project for the area, and for the fertilizer industry.”

This ASX release has been approved by Managing Director, Luis da Silva.

Investor and media enquiries

Luis da Silva Michael Vaughan Justine James / Matthew Young Managing Director Fivemark Partners Alma PR South Harz Potash Ltd +61 422 602 720 +44 203 405 0205 info@southharzpotash.com michael.vaughan@fivemark.com.au shp@almapr.co.uk

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About South Harz

South Harz Potash (ASX: SHP) ( South Harz ) is a potash exploration and development company with its flagship project located in the South Harz Potash District region of Germany, midway between Frankfurt and Berlin.

The South Harz Project hosts a globally large-scale potash JORC (2012) Mineral Resource estimate of 5 billion tonnes at 10.6% K2O of Inferred resources and 258 million tonnes at 13.5% K2O of Indicated Resources across four wholly-owned project areas located favourably within central Europe.[1] This comprises three perpetual potash mining licences, Ohmgebirge, Ebeleben and Mühlhausen-Nohra, and two potash exploration licences, Küllstedt and Gräfentonna, covering a total area of approximately 659km².

With strong established infrastructure proximate to the key European market, the South Harz Project is well positioned to enable rapid economic development across multiple deposits.

South Harz Potash: Growing a responsible potash business in the heart of Germany

www.southharzpotash.com

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1. Refer to South Harz ASX release dated 12 July 2022 for full Mineral Resource estimate details. In accordance with ASX Listing Rule 5.23, the Company is not aware of any new information or data that materially affects the information included in this release and the Company confirms that, to the best of its knowledge, all material assumptions and technical parameters underpinning the estimates in this release continue to apply and have not materially changed.