GR Engineering Wins $275M EPC Contract for Develop’s Yitirrti Copper Project

GR Engineering (ASX:GNG) has executed a binding $275 million EPC contract with Develop Global for the Develop Global Yitirrti Project EPC, converting its June 2026 Preferred Contractor appointment into secured, contracted revenue with early works already underway.
By William Hadrian -
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GR Engineering locks in $275 million EPC contract for Develop’s Yitirrti copper project

GR Engineering (ASX:GNG) has executed a full engineering, procurement and construction (EPC) contract worth $275 million with Venturex Sulphur Springs Pty Ltd, a wholly owned subsidiary of Develop Global Limited (ASX:DVP). The contract covers the 1.5 Mtpa Yitirrti (formerly Sulphur Springs) Copper-Silver-Zinc Project.

The award converts GR Engineering’s Preferred Contractor appointment, announced 10 June 2026, into a binding, executed contract. Early works and ordering of long lead items had already commenced prior to contract execution on 17 August 2026.

The deal at a glance

Detail Figure/Fact
Contract type Engineering, Procurement and Construction (EPC)
Contract value $275 million
Client Venturex Sulphur Springs Pty Ltd (subsidiary of Develop Global Limited, ASX:DVP)
Project Yitirrti (formerly Sulphur Springs) Copper-Silver-Zinc Project
Throughput 1.5 Mtpa
Preferred Contractor appointed 10 June 2026
EPC contract executed 17 August 2026

The sequence of events:

  1. Preferred Contractor appointment announced 10 June 2026
  2. Early works and long lead item ordering commenced
  3. Full EPC contract executed 17 August 2026

Yitirrti Contract Execution Timeline

Why an EPC contract matters for investors

An EPC (Engineering, Procurement and Construction) contract means a single contractor takes responsibility for the design, sourcing of equipment, and construction of the processing plant. For GR Engineering, this represents a turnkey delivery model that consolidates project execution risk and accountability.

The transition from Preferred Contractor status to an executed EPC contract converts a pipeline prospect into secured, contracted revenue. The announcement also references GR Engineering’s previous work with the Develop team, though no detail on prior projects is disclosed.

Tony Patrizi, Managing Director

“GR Engineering is pleased to be working again with the Develop team. This project further enhances GR Engineering’s reputation as the leading minerals processing EPC contractor in Australia across a broad range of commodities.”

What it means for the GR Engineering investment case

The $275 million contract represents a material addition to GR Engineering’s contracted work book, though no updated total order book figure was disclosed. The award reinforces the company’s positioning as a leading minerals processing EPC contractor in Australia across a broad range of commodities, as stated by management.

The Yitirrti project provides exposure to copper, silver, and zinc, aligning with strong demand for base and battery-adjacent metals. Early works and ordering of long lead items are already underway, signalling the project is moving into execution. No completion timeline has been disclosed.

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Frequently Asked Questions

What is the Develop Global Yitirrti Project EPC contract?

The Yitirrti EPC contract is a $275 million Engineering, Procurement and Construction agreement between GR Engineering (ASX:GNG) and Venturex Sulphur Springs Pty Ltd, a subsidiary of Develop Global Limited (ASX:DVP), covering the construction of a 1.5 Mtpa copper-silver-zinc processing plant in Australia.

What does an EPC contract mean for GR Engineering investors?

An EPC contract converts a pipeline prospect into binding, contracted revenue — GR Engineering takes full responsibility for design, equipment procurement, and construction, meaning the $275 million flows through its books as the project progresses through execution milestones.

When was the GR Engineering Yitirrti EPC contract executed?

The full EPC contract was executed on 17 August 2026, converting GR Engineering's Preferred Contractor appointment — which was announced on 10 June 2026 — into a binding agreement, with early works and long lead item ordering already underway before execution.

What commodities does the Yitirrti project produce?

The Yitirrti project, formerly known as Sulphur Springs, is a copper-silver-zinc project with a planned throughput of 1.5 million tonnes per annum, giving GR Engineering's contract exposure to three base and battery-adjacent metals.

Who is Develop Global Limited and what is its role in the Yitirrti project?

Develop Global Limited (ASX:DVP) is the ASX-listed owner of the Yitirrti Copper-Silver-Zinc Project, which it is advancing through its wholly owned subsidiary Venturex Sulphur Springs Pty Ltd — the entity that has contracted GR Engineering to build the processing plant.

William Hadrian
By William Hadrian
Partnerships Director
William supports Discovery Alert subscribers across Australia and overseas, helping them tailor alerts, troubleshoot technical issues, and optimise platform settings to suit their workflow.
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