GR ENGINEERING SERVICES LIMITED — Capital/Financing Update 2024

May 9, 2024

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ASX RELEASE

10 May 2024

For immediate release to the market

EPC Contract – Kathleen Valley Lithium Backfill Project

GR Engineering Services Limited (ASX:GNG) (GR Engineering) is pleased to announce that it has been awarded an engineering, procurement and construction (EPC) contract with LRL (Aust) Pty Ltd, a wholly owned subsidiary of Liontown Resources Limited (ASX:LTR) (Liontown), for the Kathleen Valley Lithium Backfill Project (the Project).

The Kathleen Valley Lithium Project is a globally significant Tier-1 battery metals asset located in a premier mining jurisdiction approximately 60km north of Leinster and 680km north east of Perth, Western Australia.

The contract value is $71 million. The Project scope comprises two paste plants which will produce paste fill for use in Liontown’s underground operations. Engineering, procurement and site works had previously commenced under an early works agreement.

Commenting on the award, Mr Tony Patrizi, Managing Director said:

“We are pleased to have been engaged by Liontown to play an important role in the delivery of the world class Kathleen Valley Lithium Project. We see this contract award as a strong endorsement of GR Engineering’s proven process design record and EPC delivery capability. We look forward to continue working with the Liontown team on the successful and safe delivery of this project.”

Ends.

For further information please contact:

Tony Patrizi Managing Director  +61 8 6272 6000

 tony.patrizi@gres.com.au

Omesh Motiwalla

• CFO & Company Secretary  +61 8 6272 6000

•  omesh.motiwalla@gres.com.au

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GR ENGINEERING SERVICES LIMITED ABN 12 121 542 738 Tel: +61 8 6272 6000 Fax: +61 8 6272 6001 Email: gres@gres.com.au Website: www.gres.com.au PO Box 258, Belmont WA 6984 71 Daly Street, Ascot WA 6104