GR ENGINEERING SERVICES LIMITED — Capital/Financing Update 2021

Nov 2, 2021

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ASX RELEASE

3 November 2021

For immediate release to the market

Bluestone Mines Awards New Work to GR Engineering

GR Engineering Services Limited (ASX: GNG) (GR Engineering) is pleased to announce that it has been awarded additional work by Bluestone Mines Tasmania Pty Ltd (Bluestone Mines) that has a combined value of $31.7 million. This work will be performed by GR Engineering’s team in Queensland and Tasmania.

The new projects awarded include:

• An engineering, procurement and construction (EPC) contract involving the design, supply installation and commissioning of a new paste backfill plant & associated infrastructure at its Renison Tin Operations. Early front end engineering design work on the paste plant has been completed. The value of this project is $23.9 million.

• An EPC contract for the HV Power Upgrade Project that includes the design, supply & installation of new transforms and HV switchgear for Bluestone’s existing main switchyard. The HV Upgrade Project has commenced and the value of this work is $7.8 million.

Commenting on the award, Mr Geoff Jones, Managing Director said:

“GR Engineering has been pleased to support Bluestone Mines on multiple projects over the last two years and has developed a strong working relationship with management and the on-site team. We look forward to continuing our work with Bluestone Mines using GR Engineering’s team in Queensland and Tasmania.”

For further information please contact:

Geoff Jones

Managing Director  +61 8 6272 6000  geoff.jones@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